the AMP in good working condition. see photos.

Hallo verkaufe hier die 3 Geräte der CD Player ist leider defekt der lest sich nicht öffnen der versucht es aber geht nicht auf daher wird der als defekt angeboten bei Interesse bitte melden danke

Hallo verkaufe hier die 3 Geräte der CD Player ist leider defekt der lest sich nicht öffnen der versucht es aber geht nicht auf daher wird der als defekt angeboten bei Interesse bitte melden danke

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. As an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. The stock unit did not have this, this is an extra feature added. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer, Plus 8 hours in design/ labor/ testing. Theres a lot of value here. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900. With good AC power behind it, you will easily get between 220 to 260 watts per channel into 8 ohms, and 450-500 into 4 ohms. It is a Very powerful amplifier now, with the same great MX Yamaha sound.

Beautiful condition working perfectly

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. As an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. The stock unit did not have this, this is an extra feature added. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer, Plus 8 hours in design/ labor/ testing. Theres a lot of value here. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900. With good AC power behind it, you will easily get between 220 to 260 watts per channel into 8 ohms, and 450-500 into 4 ohms. It is a Very powerful amplifier now, with the same great MX Yamaha sound.

Yamaha MX-2000 Leistungsverstärker 1988 Vintage Hi-Fi Stereo Verstärker getestet funktionsfähigBeschreibungModell: MX-2000 100 V, 50/60 Hz, 350 W Größe der Haupteinheit (B x T x H): ca. 47,5 cm x 46,5 cm x 17,5 cm Bitte rechnen Sie mit leichten Abweichungen aufgrund von Laienmessungen. Wir übernehmen keine Garantie und akzeptieren keine Rücksendungen, auch wenn bei der Ankunft Unstimmigkeiten vorliegen. Bitte beachten Sie dies vor der Abgabe eines Gebotes. Wir haben die Stromversorgung, die Schalter und die Tonausgabe überprüft, aber da wir Laien sind, konnten wir keine detaillierten Inspektionen oder Wartungen durchführen, daher verkaufen wir den Artikel in seinem aktuellen Zustand. Bei dem Artikel handelt es sich um einen GEBRAUCHTEN Artikel, daher sind einige kleinere Kratzer und Gebrauchsspuren vorhanden, ich denke aber, dass der Gesamtzustand gut ist.Es wurde gereinigt.Der Transportwagen ist nicht im Lieferumfang enthalten. Der Wagen ist nicht im Lieferumfang enthalten.VersandWir versenden den Artikel immer mit einer Trackingnummer. Geben Sie also bitte eine Bestellung auf, ohne sich Sorgen hinsichtlich der Lieferung machen zu müssen. Sie können den Lieferstatus jederzeit verfolgen.Ein Versand ist nur an die bei eBay hinterlegte Adresse möglich. Wenn Sie möchten, dass wir Ihnen eine andere Adresse senden, ändern Sie bitte Ihre Adresse bei eBay und geben Sie dann eine Bestellung auf.Der Versand erfolgt von Montag bis Freitag. An Wochenenden ist keine Verfügbarkeit gegeben, da die Frachtunternehmen (Versandunternehmen) geschlossen sind.Wir kennzeichnen Waren nicht unter Wert und kennzeichnen Artikel auch nicht als „Geschenke“. Ein solches Verhalten ist gemäß den staatlichen Vorschriften in Japan, den USA und auf internationaler Ebene verboten.Über die Pflichten des ImporteursEinfuhrzölle, Steuern und Gebühren sind nicht im Artikelpreis oder den Versandkosten enthalten. Diese Gebühren gehen zu Lasten des Käufers. Bitte erkundigen Sie sich beim Zollamt Ihres Landes, wie hoch diese zusätzlichen Kosten sind, bevor Sie ein Gebot abgeben oder einen Kauf tätigen. Vielen Dank für Ihr Verständnis.

Yamaha MX-2000 Power Amplifier 1988 Vintage Hi-Fi Stereo Amp Tested WorkingDescriptionModel: MX-2000 100V 50/60Hz 350W Main unit size (W x D x H): approx. 47.5 cm x 46.5 cm x 17.5 cm Please allow for slight deviations due to amateur measurements. We do not guarantee or accept returns even if there is a discrepancy upon arrival. Please be aware of this before bidding. We have checked the power, switches, and sound output, but as we are amateurs, we have not been able to conduct detailed inspections or maintenance, so we are selling the item in its current condition. The item is a USED item, so there are some minor scratches and signs of use, but I think the overall condition is good.It has been cleaned.The dolly is not included. The cart is not included.ShippingWe always send the item with a tracking number. So please place an order without any concern on delivery. You can always track the delivery status.Shipping is only available to the address registered in eBay. If you want us to send another address, please change your address on eBay and then place an order.Shipping is available from Monday to Friday. Weekends are not available because freight (shipping) companies are closed.We do not mark merchandise values below value or mark items as “gifts” – Japan, US and International government regulations prohibit such behavior.About Importers ObligationImport duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. Thank you for your understanding.

YAMAHA MX-10000 Limited Centennial Anniversary Edition ULTRA RARECLASS A Endstufe (Leistungsverstärker) - es wurden weltweit nur ca. 250 Stück produziert (Quelle: thevintageknob) Please only buy goods if you can pay and if you understand the offer text or can at least use one of the many translation tools! NO SALES TAX ADDED FOR BIDDERS OUTSIDE THE EU, BUT YOU MAY PAY IMPORT TAXES AND DUTIES! ON THE OTHER HAND NO IMPORT TAXES OR DUTIES ARE DUE FOR CUSTOMERS WITHIN THE EUROPEAN UNION! Alle Bilder: ORIGINALFOTOS! Technical: everything OK, tested for hours!Optical: See Originalphotos! 43kg, Neupreis 1987 DM 15.000,- Vergleichbares heute praktisch unbezahlbarDie Endstufe wird um mehr als € 13.000,- gehandelt - ich muss das Gerät nicht verkaufen - bitte daher keine Preisvorschläge von Spaßvögel! ORIGINAL*) 100V Japan Import, sehr guter technischer und akzeptabler optischer Zustand 230V zu 100V Trafo mit entsprechender Leistung kann um € 259,- extra erworben werden! *) Yamaha ist ein japanischer Hersteller und entwickelte diese Geräte primär in 100V in Japan und für den Japanischen Markt. Außerdem sind tatsächlich einige Geräte nur in 100V in vollem Funktions- und Originalzustand, da manche für den europäischen bzw. amerikanischen Markt abgespeckt wurden. Daher ist - wie in manchen anderen Angeboten geworben wird - eine Beschreibung 220V Originalversion aus den beschriebenen Gründen falsch! Diese Geräte können funktions- und ausstattungstechnisch von der Japanischen Version abweichen. Es sollte eher 220V Version, die nicht alle Qualitäts- und/oder Funktionsmerkmale der Japanischen Urversion aufweist lauten!! Selbstabholung natürlich bevorzugt (wegen des Wertes)!International bidders welcome, self pickup recommended! Kreditkartenzahlungen mit folgenden Karten/Systemen bei Selbstabholung oder Abholung durch Versandunternehmen möglich: Pay with following Cards/Systems (self pickup / payment through carrier): Versandkosten höher wegen des Gewichts und der notwendigen Versicherung über EUR 510,-! Bei diesem Wert empfehle ich allerdings keinen Versand oder einen Dienstleister, der die Ware abholt und auf eigene Verantwortung verpackt! Vorführung in Wien mach Vereinbarung möglich! Technische DatenDauerleistung (RMS, 20 - 20000 Hz, bei Klirrfaktor)8 Ohm: 2x 250 Watt bei 0,001 % Klirr6 Ohm: 2x 300 Watt bei 0,001 % Klirr4 Ohm: 2x 400 Watt bei 0,001 % KlirrDauerleistung (1 kHz)8 Ohm: 2x 350 Watt6 Ohm: 2x 450 Watt4 Ohm: 2x 600 Watt2 Ohm: 2x 900 Watt1 Ohm: 2x 1200 WattGesamtklirrfaktor: 0,0005 %Dämpfungsfaktor: 1000 (1 kHz, 6 Ohm)Frequenzgang: 2 - 300000 Hz, + 0 dB, - 2 dBBrummspannungsabstand (kurzgeschlossen):Stereokanaltrennung: 90 dBSignalrauschabstand: 132 dB43kg ohne Verpackung!

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. The only weak(ish) link now are the size of the heatsinks. These are perfectly ok for 4 ohms operation, I doubt they will overheat under any normal usage, however as an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer.Added two thermal switches for protection. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900 :-)

Beautiful condition working perfectly

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. The only weak(ish) link now are the size of the heatsinks. These are perfectly ok for 4 ohms operation, I doubt they will overheat under any normal usage, however as an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer.Added two thermal switches for protection. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900 :-)

Descriptionrelease date1994 Complete class A stereo power amplifier rated output 260W+260W (4 ohms distortion 0.03%) 200W+200W (8 ohms distortion 0.008%),accessoriesInstruction manual If you have any question or concern, please do not hesitate to contact me : ) ShippingStandard Shipping (FedEx, Japan Post)We usually ship out your order within 5-7 working days after receiving your payment.The package will arrive about 3 - 10 days after shipment.Pack carefully : ) International Buyers - Please Note?Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. ?Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. ?These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges. ?We do not mark merchandise values below value or mark items as “gifts” - US and International government regulations prohibit such behavior.

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. The only weak(ish) link now are the size of the heatsinks. These are perfectly ok for 4 ohms operation, I doubt they will overheat under any normal usage, however as an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer.Added two thermal switches for protection. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900 :-)

WE ARE AN AUTHORIZED YAMAHA DEALER!PREOWNED - $2900 LIST! - FULLY TESTED - COMPLETE AND IN GREAT CONDITIONMX-A5200 AVENTAGE11-Channel Power AmplifierSupreme Power. Engineered to deliver on power andperformance, this amplifier harnesses the best in power performance that drivesfrom a technological engineering marvel. Featuring the highest quality incomponents for amplifiers, pair it with the CX-A5200 AV Preamplifier Processorfor the ultimate theater experience.150 W(8 ohm, 0.06% THD, 20Hz-20Hz, 2-ch driven)Yamahaengineered toroidal transformer and custom block capacitorsPoweramp with three-stage Darlington circuitNoiseresistant XLR balanced connectionBi-ampingchannel selectorGold-platedspeaker terminalsBridge-TiedLoad (BTL) supportAutoPower Standby AVENTAGE SeparatesAVENTAGE Separates represent the ultimate in homeentertainment and Yamaha establishes a new benchmark in performance andinnovation with the CX-A5200 pre-amplifier and MX-A5200 power amplifier.Power and PresenceThe MX-A5200 offers 11 discrete channels of amplificationwith flexible configuration options, delivering an impressive combination ofboth high power and quality.Enjoy the flexibility of a multi-zone system or immerseyourself in exhilarating surround sound using any combination of 11 channels.Ultimate Performancewith BTLTo further enhance power capacity, the MX-A5200 supports aBridge-Tied Load (BTL) configuration for the front two channels. This allowsfor quality in both sound fidelity and power to the front speakers.Uncompromising DesignAs part of its uncompromising design, the MX-A5200 boasts aspecially designed chassis to maximize rigidity and eliminate the effects ofvibration.The MX-A5200 employs a double bottom construction consistingof vibration control plates made of 1.6 mm steel, echoing that of the legendaryZ11 AV receiver.In order to support the heavy heat sinks and othercomponents, a left-right independent construction strengthened by a rigid-framestructure is utilized. The bottom frame reduces the transmission of vibrationproduced by the large power supply transformer and heat sinks.The MX-A5200 also incorporates a heavy insulator that blocksexternal vibration thus improving signal to noise ratios for an ultimatetheater experience.Perfectly SymmetricalPrecisely planned, circuit-routed and designed with asymmetrical power amplifier layout, the MX-A5200 achieves optimal channelseparation with left and right sides being both physically and electricallyisolated.This design allows for an improvement in signal-to-noiseratio thus achieving an expansive sound stage and a quality output.EffortlessPerformanceThe MX-A5200 utilizes a high-output, large toroidal transformercombined with two specially developed high-capacity block capacitors to delivermassive power with generous headroom.A direct effect of this engineering is a minimized energyloss and quality reproduction of sound sources.Superior ConnectionsThe rear of the MX-A5200 features high-quality, gold-platedterminals that are compatible with Y plugs (spade connectors) for optimalconnections with speakers.Heavy-Duty BottomPlateStabilizing the chassis is the key to enhanced performanceand sound. The MX-A5200 achieves this by employing a thick bottom plate whichacts to steady the entire structure and achieve optimal sound.Balanced XLRConnectionsWhen connecting AV components, electrical noise can beintroduced – a result of the connections between them and also from othersources of external noise.The MX-A5200 utilizes balanced connections for all 11channels, the same type found in professional audio and theater applications.This is to reduce electrical or any external noise.Additionally, the alternative RCA unbalancedconnections use a ground sensing transmission method that achieves simplebalanced transmission.Hi-Fi Heaven1549 Sixth StGreen Bay, WI 54304Contact us with your exact shipping address for accurate shipping cost.Larger speakers and items over 150lbs are strapped to a pallet and shipped via Freight including liftgate and residential delivery.We accept Pay-Pal or credit cards by contacting our store.We offer a 4% discount with payment by Zelle or check.Defective items are exchanged within 14 days from delivery.After 14 days, the manufacturers warranty will apply. Contact us for any assistance in obtaining warranty assistance.Defective item returns must be in the manufacturers original packaging, in like-new condition, including all packaging materials, shipped as-received and fully insured.Items are guaranteed to be as described.If a refund is desired, we will refund your full purchase price minus a 20% restocking fee.The item must be as received & unopened. Buyer pays return shipping costs.If you are having a problem, Please call before making a return claim on eBay.We do not offer free auditions or trials of merchandise.Returns will only be accepted for items that are truly defective.We use methods to detect product tampering.We will seek legal action against any individual or entity attempting to defraud us.Hi-Fi Heaven1549 Sixth StGreen Bay, WI 54304

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. The only weak(ish) link now are the size of the heatsinks. These are perfectly ok for 4 ohms operation, I doubt they will overheat under any normal usage, however as an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer.Added two thermal switches for protection. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900 :-)

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. The only weak(ish) link now are the size of the heatsinks. These are perfectly ok for 4 ohms operation, I doubt they will overheat under any normal usage, however as an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer.Added two thermal switches for protection. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900 :-)

Die Geräte funktionieren jedoch kommt bei der Vorstufe bei Mono Mode der Ton leiser ansonsten funktioniert es und es hat leichte Poti krachen. Nur bieten wer damit einverstanden ist. Falls Sie ein Problem mit der Ware haben nach dem Kauf können Sie sich telefonisch oder per Nachricht bei mir melden . Wir finden bestimmt eine Lösung die für beide Seiten optimal ist . Daher bitte vor der Abgabe einer Bewertung bei einem Problemen sich melden. Bilder sind Bestandteil der Artikelbeschreibung. Lieferumfang siehe Bilder. Die Versandkosten beinhalten zudem das Verpackungsmaterial (bitte beachten). BEARBEITUNGSZEIT EINES PAKETES KANN BIS ZU 4 WERKTAGE BETRAGEN!!! Wer mit den Versandkosten nicht einverstanden ist, muss das Gerät nicht kaufen. Wenn Sie ein Problem mit der Ware haben können Sie mich anschreiben und wir finden bestimmt eine optimale Lösung. Wen ein Gerät im Artikelzustand als Ersatzteil/Defekt eingestellt wird , wird es auch ausdrücklich als Ersatzteil beziehungsweise defekt verkauft, daher auch bei ungetesteter Ware , kein funktionsfähiges Gerät erwarten . Versandkosten fürs Ausland bitte Nachfragen. Die Ware unterliegt der Differenzbesteuerung nach UStG. §25a, eine Ausweisung der MwSt. ist nicht möglich.

Item Description Condition is good. Since it is a used item, it is in good condition overall, although there are some damages and stains. Rated output: 180W x 2 at 4?/130W x 2 at 8?/Frequency response: 20Hz to 20kHz Yamahas unique HCA (hyperbolic conversion amplification) circuit/speaker output is only one system that prioritizes stability. Output, adjustment, meter deflection, and lamp lighting are good.Wooden frame has sun damage and scratches. Exterior and other scratches. Shipping Handling time: Approximately 5-10 business days. Shipping method: Expedited shipping (FedEx /DHL /EMS): It will arrive approximately 4 days after shipment (to US), depending on the location. You can know the delivery status in detail.The method available depends on the status of the airmail.Shipping is only available at addresses registered with eBay. Please note that addresses that are not registered with eBay cannot be shipped. International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. Thank you for your understanding.

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. The only weak(ish) link now are the size of the heatsinks. These are perfectly ok for 4 ohms operation, I doubt they will overheat under any normal usage, however as an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer.Added two thermal switches for protection. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900 :-)

Tested,working perfectly great sound and power

Die Geräte funktionieren jedoch kommt bei der Vorstufe bei Mono Mode der Ton leiser ansonsten funktioniert es und es hat leichte Poti krachen. Nur bieten wer damit einverstanden ist. Falls Sie ein Problem mit der Ware haben nach dem Kauf können Sie sich telefonisch oder per Nachricht bei mir melden . Wir finden bestimmt eine Lösung die für beide Seiten optimal ist . Daher bitte vor der Abgabe einer Bewertung bei einem Problemen sich melden. Bilder sind Bestandteil der Artikelbeschreibung. Lieferumfang siehe Bilder. Die Versandkosten beinhalten zudem das Verpackungsmaterial (bitte beachten). BEARBEITUNGSZEIT EINES PAKETES KANN BIS ZU 4 WERKTAGE BETRAGEN!!! Wer mit den Versandkosten nicht einverstanden ist, muss das Gerät nicht kaufen. Wenn Sie ein Problem mit der Ware haben können Sie mich anschreiben und wir finden bestimmt eine optimale Lösung. Wen ein Gerät im Artikelzustand als Ersatzteil/Defekt eingestellt wird , wird es auch ausdrücklich als Ersatzteil beziehungsweise defekt verkauft, daher auch bei ungetesteter Ware , kein funktionsfähiges Gerät erwarten . Versandkosten fürs Ausland bitte Nachfragen. Die Ware unterliegt der Differenzbesteuerung nach UStG. §25a, eine Ausweisung der MwSt. ist nicht möglich.

Own a One of a kind Yamaha M-power amplifier that no one else has! This is a custom-Built Yamaha I am calling the MX-900 Stereo Power amplifier: In reality this is an MX-800 that has been upgraded for more power and reliability. A one of a kind Unit! In summary: A second transformer was added to increase power. The entire output stage was rebuilt and upgraded to Audiophile parts. The audio circuits were not modified otherwise. Both Channels before clipping at 20Hz into 8 ohms gives 225 watts + 225 wattsBoth Channels into 4 ohms @ 20Hz into 4 ohms = 450 watts + 450 watts RMS.Both channels at 8 ohms into 1Khz = 230 watts + RMSMy Test bench power mains dropped to 116v, or these numbers would be even higher. How: By adding a second Transformer, there is less rail droop, thus higher cleaner power is available. I installed a 400VA Toroidal transformer, but kept the stock MX-800 voltage rails. I did not want to increase those and tax other components. The stock unit comes with 5 pairs of 8amp output transistors. I upgraded these to 15amp outputs. These are the same ones used in the Nakamichi PA-7. I used 5 pairs here. The Onkyo M-508 uses 3 pairs of these devices and is rated for 200wpc, I used 5 here. Each device was hand gain and vbe matched for better current sharing and reliability. The only weak(ish) link now are the size of the heatsinks. These are perfectly ok for 4 ohms operation, I doubt they will overheat under any normal usage, however as an added safety measure, I installed two thermal switches on the heatsinks such that if they get too hot, the speakers will be switched off till the sinks return to below 65C. I do not foresee these tripping under normal usage, but its a good insurance to have for reliability and longevity. It is a dual transformer amplifier now. The new transformer only kicks in under high power demand. The stock transformer runs everything else including low power output.I changed the LED display to amber to differentiate this form the stock Yamahas.All new and upgraded output transistors. The whole output stage in both channel was rebuilt, ie 20 New power transistors, thats over $100 in parts plus another $100 for the Transformer.Added two thermal switches for protection. Feel free to ask questions, this is a one of a kind Yamaha power amp now. Condition: Its a mixed bag, there are some scratches that I have tried to mark, please see photos. Id say it is normal for its age. The shell is in good shape. PS: Its still not as powerful as an MX-1000, but it sits comfortably between the MX-800 and the MX-1000 in power/ specs. Hence my naming it the MX-900 :-)

Welcome to Audio/Video Archives, the largest home of audio literature available on eBay! This Advertisment is an exact reprint from 1988, it is printed on matte photo paper and is in Mint condition! The Picture is the picture of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.