Like new Conrad-Johnson MF-2250A MF2250A - Power Amplifier. Signature required. Conrad-Johnson MF-2250AConrad-Johnsons MF2250 is a successful product on many grounds. It closely approaches the classic tonal character of a fine tubed amplifier—a C-J hallmark—and holds on to that quality over a great range of output power and possible speaker loading. Not easy to accomplish. It also avoids the cheap, quick thrill of a bright, fast, forward sound. Instead, it builds on quality and depth of performance to achieve its commendable rating. Its sound is musically entertaining without being hyperactive, while its broad, bighearted approach is easy on the ears. All kinds of music were handled with equanimity. In the lab, the MF2500s high output power and good load tolerance were confirmed. The amplifier could dump up to 900Wpc into 2 ohm loads for short-term peaks, and cruise happily at around 300Wpc driving 8 ohm loads. This matches the attainment of significantly more costly amplifiers. Except for the modest channel separation at high frequencies, no test result gave rise to concern. Well-built and well-finished, with effective if old-fashioned circuit protection, the MF2500 idled at quite low power and could be safely left on for extended listening periods. This musically well-balanced powerhouse represents fine dollar value, and wins a warm recommendation.Power Output:MF2250 - 120 watts per channel; All deliver their power from 20Hz to 20KHz at no more than 1% THD and IM, both channels driven into 8 ohms.Distortion:less than .1% THD or IMDResponse:bandpass 20Hz to more than 20kHz , +0, -.5dBHum & Noise:100 dB relative to max outputMechanical:MF2250 - 19 X 4 ¼ X 16

Conrad Johnson MF 2275 SE. Fabulous sounding SE version of this model. The SE version is hard to come by, rarely see them for sale.135 watts per channel at 8 ohmsVery nice condition, will be shipped in original CJ box.Operates as it should, not new but very close to mint. See more about this amp at the link below. https://conradjohnson.com/wp-content/uploads/2017/01/Tone-Audio-Review-conrad-johnson-MF2275SE.pdf I simply have too many amps, rather see it with someone who will enjoy it more often than I can.

Conrad-Johnson MF-2250 MF2250 - Power Amplifier w/ Box, Has a few scuffs please see photos for condition. Signature will bee required per ebay rules. Will be shipped in original box.

Conrad Johnson Premier8 Audio Research 5SE,LS15,Thiel CS2.4 Marantz SA8005 Set. A VINTAGE CLASSIC CONDRAD JOHNSON DESIGN PREMIER 8 MONO TUBE AMPS 275 WATTS RMS PER AMP VERY GOOD CONDITION SHIPPING VIA TRUCK FREIGHT ONLY --------------------------------------------------------------------- This pair of CONRAD JOHNSON PREMIER 8 mono tube amps is in VERY GOOD condition! The sound is EXCELLENT! One of the amps operates per spec, the other plays with its bias lights lit. That 2nd amp can only be biased by removing the bottom cover and individually testing each tube with a meter – recommended for technicians only. Power Output ­ 275 watts from 30Hz to 15kHz at no more than 1% THD or IMD into 4 ohms (also available connected for 2, 8 or 16 ohm loads).Power Output (model XS equipped with EL34 output tubes in triode mode) ­ 130 watts from 30Hz to 15kHz at no more than 1% THD or IMD into 4 ohms (also available connected for 2, 8 or 16 ohm loads).Response: 20Hz to 20kHz, +/- .1 dBInput Impedance: 100 kOhmsHum & Noise: 96 dB below rated powerMechanical: 21 D x 19W X 9.5 H Weight: 90 lbs. Please see the photos as they are part of the description. This Premier 8 will include its original shipping cartons, but with hand-crafted packing and the original operation manual. The PREMIER 8 was made in1992 when they sold for $7000 a pair The CJ blue book value is $10k The Premier Eight used premium quality component parts throughout. The power supplies, including the main storage reservoir, used only polypropylene and “cjd” polystyrene capacitors as opposed to the traditional deployment of electrolytic capacitors. The audio circuit consists The buyer is responsible for all shipping charges. https://www.youtube.com/watch?v=_0-FUr4iZBc

Up for sale is a conrad-johnson MF2500A Power Amplifier. I purchased it here in Santa Barbara from Advanced Audio. It was used in an audio show by conrad-johnson and was then checked out by cj and sold as refurbished. It is in great shape cosmetically and functions perfectly. The Conrad-Johnson name is one of the most legendary and desirable names in high-end audio gear. They are especially known for their amps, both solid state and tube amps. This unit is a 250 watt per channel stereo solid state design. This amp sounds very tube like, but without the roll off in the bass youd experience in a tube amp. Specifications:Power Output: MF2500A – 250 watts per channel. All deliver their power from 20Hz to 20KHz at no more than 1% THD and IM, both channels driven into 8 ohms.Distortion: less than .1% THD or IMDFrequency Response: 20Hz to more than 20kHz , +0, -.5dBHum & Noise: 100 dB below full power outputInput impedence: 100K ohmsMechanical: MF2500A 19 X 6 ¾ X 16Shipping Diminsions24 inches X 21 inches X 12 inchesWeight of 60 lbs.The Conrad-Johnson MF-2500A will be shipped using the original form fitting foam and box.

Selling this Conrad Johnson mf-5600 Used but in good working condition, selling as is.

Conrad Johnson ET250S Power Amplifier Hybrid - Excellent - One Owner. Conrad Johnson ET250S - Excellent Shape - Power Amplifier Hybrid - One Owner. Original Box, Power Cord, and Manual included. Based in Indianapolis, IN. Tone Studio. Specifications Type: Hybrid stereo amplifier Power Output: 250 wpc from 20 Hz to 20 kHz (400 wpc @ 4 Ohm) Tube Complement: Two 6922 Sensitivity: 1.85V to rated power. Frequency Response (at 10 Watts): 20 Hz to 20 kHz (+/- .25dB) Hum and Noise: 104 dB below rated power Input Impedance: 100 kOhms Dimensions: 16.125 x 19 x 7.188 (DxWxH in inches) Weight: 65 lbs.

Ampli de puissance JADIS DA5 en parfait état, entièrement dorigine, 2 X 40 watts en classe A, version black, câblage à lair (pas de circuit imprimé que lon trouve sur des Audio research, Conrad Johnson ou autre...., contrôle de bias automatique (aucun réglage à faire même si on change de tubes), du haut de gamme made in France assemblé à la main à Villedubert (11), fonctionnement parfait. Tous les TUBES sont NEUFS avec facture (+ de 300 euros) => KT88EH Electro Harmonix, 12AU7 tung-sol, 12AX7 Electro-Harmonix.Poids de 25 kilos, notice originale. Puissance de sortie à 1KHZ : 40 W efficace Impédance de sortie admissible : 1 à 16 ohms Bande passante à -1 dB : 10 Hz à 20 KHz Bande passante à -3 dB : 10 Hz à 40 KHz JADIS DA5 power amp in perfect condition, completely original, 2 X 40 watts in class A, black version, air wiring (no printed circuit found on Audio research, Conrad Johnson or other. ..., automatic bias control (no adjustment to be made even if you change tubes), high-end made in France assembled by hand in Villedubert (11), perfect operation. All TUBES are NEW with invoice (+ 300 euros) => KT88EH Electro Harmonix, 12AU7 tung-sol, 12AX7 Electro-Harmonix.Weight of 25 kilos, original instructions. Output power at 1KHZ: 40 W effectivePermissible output impedance: 1 to 16 ohms Bandwidth at -1 dB: 10 Hz to 20 KHzBandwidth at -3 dB: 10 Hz to 40 KHz Etapa de potencia JADIS DA5 en perfecto estado, completamente original, 2 X 40 watts en clase A, versión negra, cableado de aire (no se encontró circuito impreso en Audio research, Conrad Johnson u otro...), control automático de polarización (no se requiere ajuste hecho aunque cambies tubos), alta gama fabricado en Francia ensamblado a mano en Villedubert (11), perfecto funcionamiento. Todos los TUBOS son NUEVOS con factura (+300 euros) => KT88EH Electro-Harmonix, 12AU7 tung-sol, 12AX7 Electro-Harmonix.Peso de 25 kilos, instrucciones originales. Potencia de salida a 1KHZ: 40 W efectivosImpedancia de salida admisible: de 1 a 16 ohmios Ancho de banda a -1 dB: de 10 Hz a 20 KHzAncho de banda a -3 dB: 10 Hz a 40 KHz JADIS DA5 Endstufe in einwandfreiem Zustand, komplett original, 2 x 40 Watt in Klasse A, schwarze Version, Luftverkabelung (keine gedruckte Schaltung gefunden bei Audio Research, Conrad Johnson oder anderen. ...), automatische Bias-Steuerung (keine Anpassung erforderlich). hergestellt, auch wenn Sie die Röhren wechseln), High-End, hergestellt in Frankreich, handgefertigt in Villedubert (11), perfekter Betrieb. Alle Röhren sind NEU mit Rechnung (+ 300 Euro) => KT88EH Electro Harmonix, 12AU7 Tung-Sol, 12AX7 Electro-Harmonix.Gewicht 25 Kilo, Originalanleitung. Ausgangsleistung bei 1 kHz: 40 W effektivZulässige Ausgangsimpedanz: 1 bis 16 Ohm. Bandbreite bei -1 dB: 10 Hz bis 20 KHzBandbreite bei -3 dB: 10 Hz bis 40 KHz

DescriptionAuthenticity: 100% AUTHENTIC! If you have any question about the condition, accessories, or anything about the product,Please feel free to message us. We are glad to answer all your concerns. ShippingDHL, Fedex Fastshipping3-10 business days after shipment(Tracking number + Insurance.)PaymentPlease give me the payment within 3days from the date of bid.About UsWe sell our items on other websites and in our retail stores in Japan at the same time.If the item was sold out before your purchase, your order will be cancelled and a full refund will be issued immediately. 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.We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior. Thank you.

Vend amplificateur à tubes de la marque Conrad Johnson modèle Evolution 500. Ampli en parfait état de fonctionnement, testé et révisé par la société Audio Fidélité Caractéristiques :2 X 70 Watts Double Pusch Pull 6550 Hz–48kHz, +0, –3 dB Puissance 70W sous 8 ohms 18.45dBW, Responseen frequances : 20Hz-20kHz, +0/-0.5dB. THD: < 1%. IM distortion: <1 Input impedance: 100k ohms. S/N ratio: 96dB Sensitivity: 950mV. Dimensions : largeur 53cm, longueur 48 cm, hauteur 23 cm Poids : 34Kg Livraison possible : 105 euros de frais de port en France Ou à venir chercher sur place (Besançon).

Set of 5 Nice 6SN7 CBS tubes. These will Give You That BIG Rich Creamy CBS Sound! Tested out nice & high on a Chris Haedt Calibrated Hickok 539 Tester. Minimum is 1700 Mu. Two have matched Date code 39 Th. Week of 1958. Others Early 1960s. Results as shown in Pics. Will be sent in a nice big box. Check other auctions for radio tubes from the collection of this Big Time Radio Mans estate.

Follow us| Sign up for our newsletter Conrad-Johnson MV55 - Audiophile Quality Tube Stereo Power Amplifier w Manual For over 20 years High End Audio Auctions has been selling the finest HiFi online, but did you know that we BUY your HiFi equipment as well? Contact our sister company STEREOBUYERS for a fair quote today! All items included are pictured. Items are tested fully to ensure all functions work as expected - any defects and additional service done to the item are noted below. Items are not restored or reconditioned, unless specified. All items we sell come with a 30-day warranty - your satisfaction is guaranteed. Original shipping on returns will be refunded at the sellers discretion. Local Pickup in NYC Available Conrad-Johnson MV55 Details & Testing Notes Cosmetic Condition:7/10: Good - some signs of wear, looks used but well-maintainedCosmetic Notes:2 fine blemishes on the front face. Excellent physical condition otherwise. Please see all high resolution photographs below.Functional Notes:Functions as intended and sounds great.Voltage:120V 60HzSerial #:5531448Original Box:NoManual:YesRemote:NoPower Cord:YesShipping Weight (lbs):50lbs (24x20x12) High-End Audio Auctions has been THE trusted source for high-end, classic and vintage audio components on eBay since 2000! Our unique products, unparalleled service and bombproof packaging keeps our customers coming back again and again. We are experts at selling and shipping worldwide, with items ranging from $5 to $50,000. We look forward to earning your repeat business! By placing a bid on any of our listings, you agree to our terms & conditions Click here to learn more Home| About Us| Store Policies| FAQs| Feedback| Contact Us| Custom Tuned Cables _gsrx_vers_1516 (GS 9.3 (1516))

Conrad Johnson CAV 45. Original version not S2A Control Amplifier functions similarly to an integrated amp but has a passive line stage3 inputsIncludes box, packing. manual and biasing tool

Vend amplificateur à tubes de la marque Conrad Johnson modèle Evolution 500. Ampli en parfait état de fonctionnement, testé et révisé par la société Audio Fidélité Caractéristiques :2 X 70 Watts Double Pusch Pull 6550 Hz–48kHz, +0, –3 dB Puissance 70W sous 8 ohms 18.45dBW, Responseen frequances : 20Hz-20kHz, +0/-0.5dB. THD: < 1%. IM distortion: <1 Input impedance: 100k ohms. S/N ratio: 96dB Sensitivity: 950mV. Dimensions : largeur 53cm, longueur 48 cm, hauteur 23 cm Poids : 34Kg Livraison possible : 105 euros de frais de port en France Ou à venir chercher sur place (Besançon).

DescriptionAuthenticity: 100% AUTHENTIC! If you have any question about the condition, accessories, or anything about the product,Please feel free to message us. We are glad to answer all your concerns. ShippingDHL, Fedex Fastshipping3-10 business days after shipment(Tracking number + Insurance.)PaymentPlease give me the payment within 3days from the date of bid.About UsWe sell our items on other websites and in our retail stores in Japan at the same time.If the item was sold out before your purchase, your order will be cancelled and a full refund will be issued immediately. 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.We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior. Thank you.

This item is pre-owned, in above average condition. Please view the condition details described below and shown in the photos. Details and Specs This information is to be used for reference only. Accessories or warranties mentioned may not apply to this specific item. Please check the Whats Included section and photos to see everything that comes with this item. The audio circuit is elegant in its simplicity. An audio amplifier stage consisting of a single-ended triode amplifier provides the voltage gain. This amplifier stage is connected to the preamplifier outputs through a high-current MOSFET buffer, which achieves a very low output impedance, making the ET5 extremely flexible in the choice of interconnect cables and amplifiers. DC voltage is supplied to the circuit by our latest discrete voltage regulator that isolates the audio circuit from the power line by maintaining negligible impedance across the audio frequency band. Infra-sonic noise is minimized by operating the tube filaments (heaters) on a dc voltage supplied by a separate regulated power supply. The ET5 is also notable for convenience and ease of use. The unit features input selection and level adjustment by microprocessor-controlled relays, with controls available both at the front panel and via a full-function remote. All control functions of the ET5 operate through microprocessor-controlled relays. For the level control, the relays select combinations from a network of precision, low-noise metal foil resistors to effect loudness and balance changes in 100 steps of approximately .7dB per step. All switching and adjustment can be controlled by the units remote control. A Theater Mode, which passes the input signal through at unity gain, makes it simple to incorporate the ET5 into a high quality home theater system without compromising its two-channel performance. Like its bigger brother, the GAT, the ET5 is constructed from the highest quality, carefully selected parts for unrivaled sonic performance and reliability. Tubes have been carefully hand selected for minimum noise and microphonics. The same CJD Teflon capacitors that distinguish the GAT are used in the ET5 for output coupling and post-regulator power supply storage. All other capacitors in the audio circuits and related power supplies are polypropylene or polystyrene - there are no electrolytic capacitors in the audio related circuits. The resistors in these circuits (including the two dozen level control resistors) are special low inductance, high-precision laser-trimmed metal foil resistors. Switches are sealed relays with gold-plated silver contacts. Input and output connectors are premium quality custom machined parts. Specifications Gain: 25 db Maximum output: 20 vrms Output impedance: 100 ohms Distortion: less than .15% THD at 1.0 Vrms output Frequency response: at unity gain 2 Hz to more than 100Khz Hum and noise: 100 db below 2.5 v Tube complement: 1 x 6922 Dimensions 15.375D x 19W x 4.94H inches Total Weight 28 lbs. Whats Included ET 5 preamp Remote control Power cable Original box Functional Condition - Excellent We checked this item out for functionality & found it to be in excellent condition. When you get the item, it will have all features and functions fully operational. This preamp was serviced by Conrad Johnson in March of 2023. It is completely functional. The remote does have an issue in the battery compartment as shown but it is functional. Cosmetic Condition - Above Average Cosmetically speaking, it looks to be in above average cosmetic shape for an item of this type with only the most minor of cosmetic wear as shown. To be more specific, here is what we noticed: Few signs of cosmetic wear on the ET5. The remote does have some wear.

100% Authentic! All packages are shipped directly from Japan!Condition DescriptionRated Output 45W+45W Impedance 16?, 8?, 4? Features and Remarks Maintained by designated contractor Please Note shipping from Japan. Policy PaymentYou can use various payment methods based on eBay Managed Payments. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.Cancellations & ReturnsCancellation or returns will be accepted only if the item has an obvious problem that was not mentioned in the listing description. If that, please let us know within 3 days you got the item. Buyer is responsible for shipping costs and any charge incurred shipping products back.International BuyersImport duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. Please check with your countrys 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.

Conrad-Johnson MF2500 - Power AmplifierOn Jul-09-23 at 12:15:40 PDT, seller added the following information: Item powers up great. Has not been completely tested.

CONRAD-JOHNSON Sonographe SA250 High Current Amplifier. In good working condition. Missing one foot.Selling AS IS, As Pictured.Shipping is for the lower 48 states.

Rare part. This will fit MV45a-1 Conrad-Johnson tube amplifier (see last 2 pics)Brushed aluminum front and both handles are in excellent condition.Dimension: 19 x 7 Only front part which you can see on Pictures 1 to 4 is for sale at this Auction, NOT A WHOLE AMPLIFIER !-----------------------------------------------------------------------------------------------------------Calculated S&H to any US48 by UPS or USPS.Thank you

Frequency response: 2Hz to 100kHz Total harmonic distortion: 0.05% Gain: 41.5dB (MM), 28.5dB (line) Signal to noise ratio: 72dB (MM), 84dB (line) Output: 2.5V (Pre out), 25V (Pre out Max) Valve complement: 2 x 12AX7, 4 x 5751, 2 x 5965 Dimensions: 16 x 3.75 x 10 inches Weight: 12.25lbsNB: il componente si accende regolarmente non ho il materiale per testarlo, ritirando a mano possiamo accordarci per una verifica.SPEDIZIONE: La spedizione l’affido a Mail Box Etc dove eseguono imballi ad hoc e spediscono quindi i costi di spedizione che ho specificato sono orientativi, li saprò solo ad proposta inviata

Conrad Johnson Premier 15 Series 2 Phono Preamplifier Excellent - One Owner Original box, manual, and cord - are included. Specifications Gain: 53 dB Maximum Output: 10V RIAA Equalization: within .25 dB Hum and noise: 85 dB below 10 mV input Phase: phase correct Ouput impedance: less than 200 ohms Tube Complement: 6 x 12AX7, 2 x 6GK5 Mechanical: Dimensions: 15D x 19W x 3.315H inches Net Weight: 22 lbs.

CONRAD JOHNSON ET-250S Enhanced Triode Amplifier - 250w 2 channel Power Amplifier - with NEW Genalax Gold Lion Super Platinum Matched & Balanced 6922 E88CC Preamp Tubes. Included is a heavy gauge Monster-Cable power cord. No dents, bent cooling fins or nicks in the face plate. This will be packed in custom insulated 4 paneled - reinforced box, along with other high quality packing materials due to the 85lb weight. I ship heavy tube amplifiers, tube studio rack gear and guitar tube amplifiers worldwide all the time. I have been doing this for 25 years. PLEASE REMEMBER: Ebay adds and collects state sales tax on behalf of the state you reside in. This is the law and there is no way around. Too many people lately have been not paying for orders as they had not calculated and anticipated sales tax. This has been active nationwide since 2020!! These are your responsibility as a buyer. Please, do not place offers or purchase if you do not have funds to complete the transaction. Way too many non-paying buyers at the moment and its getting tiresome. Thank you

Conrad Johnson PV15 - Excellent Shape - Immaculate - One Owner. Original Box, Manual, and Remote included. Based in Indianapolis, IN. Tone Studio. SOURCES (TUNER, CD, VIDEO, AUX2): These high level inputs are electrically equivalent. These inputs present a 13.5 kOhm load to the source. Connect the corresponding source components to these inputs. PH/AUX1: If the optional phono stage is installed, this input pro- vides the extra gain and RIAA equalization required for playback of LPs. Otherwise, this serves as an additional line-level input. EPL: This set of line-level inputs and outputs provides for connec- tion of an external signal processor (e.g. parametric equalizer, tone controls) or a tape recorder. Connect the EPL OUT to the input of your signal processor or tape recorder, and the EPL IN to the out- put of your processor or tape recorder. Alternatively, the EPL IN connection can be used as an additional line level input. THEATER: This is an external processor loop designed to conven- iently accommodate the addition of a surround-sound processor (SSP) to a high-quality two-channel system without compromising two-channel performance. Connect the front left and front right channel outputs from your SSP to THEATER IN. You can also con- nect the THEATER OUT to an input on your SSP, allowing you to do signal processing on selected two channel sources. When THEATER is selected, the level controls are set and locked to unity gain. Level and balance control are then accomplished via your surround sound processor. MAIN OUT: Connect to the input of your amplifier (or crossover in a bi-amplified system). We recommend the use of an amplifier with an input impedance of 20k ohms or higher. Since the PV15 inverts phase, it may be necessary to invert the speaker leads to maintain correct absolute phase. See the section on “Getting the most out of your PV15 for an explanation. Line Stage Gain: 28.5 dB Maximum Output: 5.5 Vrms Bandpass: 2Hz to more than 100kHz Hum and Noise: 95 dB below 2.5V output Distortion at 1.0 V output: less than .1% THD or IMD Phase: inverts phase of all inputs (including phono) at main out Ouput Impedance: 200 ohms Mechanical Dimensions: 13.75D x 19W x 3.315H Net Weight: 15 lb net