amazing condition. New led lights. Upgraded rca jacks to chassis mounts ( a known issue with these). New speaker relay ( also known failure area). If you’re reading this you probably know what this is. One of the most dynamically powerful ampliers ever. 2ohm stable. Specs in photos I’ve added the amp dyno specs in last picture. This will be carefully packed for shipping

Proton AA-1150 Amplifier. Used sparingly. Can drive almost anything with peak power of 400wpc @8ohms. Check it lab measurements on last page. A rare, high-quality vintage amplifier! Don’t be fooled by the 50wpc rating. Proton’s Dynamic Power on Demand gives it a claimed 7dB of headroom which, as Julian Hirsch said in his June 1988 review, makes it, “quite possibly the world’s most powerful “50W amplifier””. It’s a dual mono design and offers exemplary performance and musicality. Notably, Julian Hirsch found that it exceeded almost all of its published specs (shown below).Manufacturer’s published specifications:Rated power output: (20hz-20khz into 8ohms) 50w per channelDynamic power: (at 8ohm/4ohm/2ohm) 280w/450w/600wIHF standard 20ms duration100ms duration 220w/300w/350wDynamic Headroom: (at 8ohm/4ohm/2ohm) 7dbTHD at rated power 0.02%Dimensions: 16.5” W x 14.5” D x 4.25” HWeight 25 lbs

PROTON D1200 Stereo Power Amplifier

This Proton AA-1150 power amplifier is perfect for serious audiophiles and home theater enthusiasts. With its sleek design and top-of-the-line features, this amplifier delivers clear, powerful sound that will blow you away. The Proton AA-1150 is a top-of-the-line amplifier that is ideal for use in homes, offices, and other settings where high-quality audio is essential. Whether you're looking to upgrade your current system or simply looking for an affordable, high-quality amplifier, the Proton AA-1150 is the perfect choice. With its reliable performance, exceptional sound quality, and top-notch features, this amplifier is sure to impress even the most discerning audiophile. So why wait? Order your Proton AA-1150 power amplifier today and experience the ultimate in audio quality!

THE UNIT POWERS ON AND LIGHTS UP. THAT WAS THE EXTENT OF ANY TESTING.SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

THE UNIT POWERS ON AND LIGHTS UP. THAT WAS THE EXTENT OF ANY TESTING.SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

Proton AA-1150 Vintage Stereo Power AmplifierThis amps works other than the following issue. There is periodic scratchiness from both channels when music is playing. This issues seems to improve at higher volume levels! Amp is being SOLD AS-IS! Both lights and meters working Light Signs of Shelve wear on upper air vent Small Scratches and scuffs around the unit very well maintained Please refer to photos for more details

Willkommen zu meinem Angebot !Sie bieten hier auf :Vollverstärker Proton D540 in Funktion vorwiegend als Vorverstärker genutztleichte Aussetzer im untersten Lautstärkebereichbehebbar durch Drehen des Volumenreglers Ansonsten technisch in Ordnung ist bis zum Verkauf noch in Gebrauch. mit Gebrauchsspuren, siehe Bilder no shipping outside Germany Versand als Paket bis 31kg per Dhl + Polsterung : 25 Euro nur Deutschlandoder Abholung : - mit Barzahlung innerhalb 3 Tagen nach Auktionsendeoder Bezahlung innerhalb 3 Tagen nach Kauf und Abholung innerhalb einer Wochesollten Sie sachliche Fragen zum Artikel haben- vor Gebotsabgabe -erreichen Sie mich über die im Angebot enthaltene Funktion dieser Plattform- geantwortet wird innerhalb und bis 12 Stunden vor Ende des Angebots Da es sich um einen Privatverkauf handelt, kann ich keine Garantie nach neuem EU-Recht übernehmen. Der Bieter erklärt sich damit einverstanden und erkennt dies mit seinem Gebot an! Demnach erfolgt der Verkauf unter Ausschluss jeglicher Gewährleistung, Garantie , Sachmängelhaftung , Nachverhandlungen oder Rücknahme! Die von mir erstellten abgebildeten Fotos dienen der Veranschaulichung für Sie - nicht der Werbung oder um eine Nähe zum Inhaber der Rechte vorzuspiegeln. Die angegebenen Namen sind rechtlich geschützt und werden hier nur verwendet, weil sie Bestandteil des Produktes sind.

THE UNIT POWERS ON AND LIGHTS UP. THAT WAS THE EXTENT OF ANY TESTING.SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

PROTONVintage Proton D1200 2-Channel Power Amplifier Great sound !!! Excellent ++++Used. In Excellent working & cosmetic condition.All functions and meters work great.LED Meters and power lights upgraded.

SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

Willkommen zu meinem Angebot !Sie bieten hier auf :Vollverstärker Proton D540 in Funktion vorwiegend als Vorverstärker genutztleichte Aussetzer im untersten Lautstärkebereichbehebbar durch Drehen des Volumenreglers Ansonsten technisch in Ordnung ist bis zum Verkauf noch in Gebrauch. mit Gebrauchsspuren, siehe Bilder no shipping outside Germany Versand als Paket bis 31kg per Dhl + Polsterung : 25 Euro nur Deutschlandoder Abholung : - mit Barzahlung innerhalb 3 Tagen nach Auktionsendeoder Bezahlung innerhalb 3 Tagen nach Kauf und Abholung innerhalb einer Wochesollten Sie sachliche Fragen zum Artikel haben- vor Gebotsabgabe -erreichen Sie mich über die im Angebot enthaltene Funktion dieser Plattform- geantwortet wird innerhalb und bis 12 Stunden vor Ende des Angebots Da es sich um einen Privatverkauf handelt, kann ich keine Garantie nach neuem EU-Recht übernehmen. Der Bieter erklärt sich damit einverstanden und erkennt dies mit seinem Gebot an! Demnach erfolgt der Verkauf unter Ausschluss jeglicher Gewährleistung, Garantie , Sachmängelhaftung , Nachverhandlungen oder Rücknahme! Die von mir erstellten abgebildeten Fotos dienen der Veranschaulichung für Sie - nicht der Werbung oder um eine Nähe zum Inhaber der Rechte vorzuspiegeln. Die angegebenen Namen sind rechtlich geschützt und werden hier nur verwendet, weil sie Bestandteil des Produktes sind.

You can write us in German, English, French or Italian Proton AM-452 Vollverstärker mit schönem Klang. Optischer Zustand siehe Bilder, mit Gebrauchsspuren Das Gerät ist geprüft und gewartet, voll funktionsfähig. Power output: 25 watts per channel into 8? (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.02% Damping factor: 100 Input sensitivity: 2.5mV (MM), 150mV (line) Signal to noise ratio: 85dB (MM), 100dB (line) Speaker load impedance: 4? (minimum) Dimensions: 446 x 80 x 332mm Weight: 6kg Ohne weiteres Zubehör!Hinweis: Der Umwelt zuliebe verwenden wir in der Regel gebrauchte Kartons, auch wenn sie nicht mehr so schön sind. Wir bitten um Verständnis.

SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

Proton D1200 Vintage Stereo Power AmplifierFully tested and working great! Both lights and meters working Light Signs of Shelve wear on upper air vent Small Scratches and scuffs around the unit very well maintained Please refer to photos for more details

This is a great vintage stereo amplifier.Rated at 100 wpm but can produce enormous short term power when necessary. (Search YouTube for tests!)I refreshed this amp within the last year: So many other listings say their unit has been tested or serviced.Its typically not true - cleaned is not synonymous with serviced. Electrolytic Capacitors have been replaced and upgraded (with the exception of the four big caps, which tested fine).New relay installed.New chassis mount RCA inputs installed.These are a well known issue with this model. If you are looking at other offerings, make sure that the upgrade has been done,otherwise eventually your amp will have intermittent audio - possibly damaging your speakers.New Green LED lamps installed in the meters and power switch.Professionally powder coated cover.I have a different cover that has been stripped. I would reduce the price of this transaction by $50 if the buyer prefersto have me install/ship the unit with the stripped cover. I have not had the opportunity to have it powder coated. The faceplate has faded a bit - this common.The top of the faceplate has some small scratches, most likely from when gear was placed on top of it.I still have another unit in my system... need to lighten up the collection. Even though I have refreshed, tested this unit - due to the nature of vintage electronics - this is an AS IS sale.

Willkommen zu meinem Angebot !Sie bieten hier auf :Vollverstärker Proton D540 in Funktion vorwiegend als Vorverstärker genutztleichte Aussetzer im untersten Lautstärkebereichbehebbar durch Drehen des Volumenreglersdieser sollte gereinigt werden...Ansonsten technisch in Ordnung ist bis zum Verkauf noch in Gebrauch. mit Gebrauchsspuren, siehe Bilder no shipping outside Germany Versand als Paket bis 31kg per Dhl + Polsterung : 25 Euro nur Deutschlandoder Abholung : - mit Barzahlung innerhalb 3 Tagen nach Auktionsendesollten Sie sachliche Fragen zum Artikel haben- vor Gebotsabgabe -erreichen Sie mich über die im Angebot enthaltene Funktion dieser Plattform- geantwortet wird innerhalb und bis 12 Stunden vor Ende des Angebots Da es sich um einen Privatverkauf handelt, kann ich keine Garantie nach neuem EU-Recht übernehmen. Der Bieter erklärt sich damit einverstanden und erkennt dies mit seinem Gebot an! Demnach erfolgt der Verkauf unter Ausschluss jeglicher Gewährleistung, Garantie , Sachmängelhaftung , Nachverhandlungen oder Rücknahme! Die von mir erstellten abgebildeten Fotos dienen der Veranschaulichung für Sie - nicht der Werbung oder um eine Nähe zum Inhaber der Rechte vorzuspiegeln. Die angegebenen Namen sind rechtlich geschützt und werden hier nur verwendet, weil sie Bestandteil des Produktes sind.

SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

Rare and in near perfect condition combination of Proton D1200 stereo power amp and 1100 Pre-amplifier, both items in perfect working order, cases are in mint condition, not scratched in any way and the clear front faceplate on the D1200 is absolutely immaculate. I am only selling because I moved onto collecting 1970’s silver faced equipment vs black 1980’s gear. If you have proactively searched for this very rare pre/power amp combination then you need no explanation - however, this is a highly attractive set featuring massive Dynamic Power on Demand circuitry that provides a quite extraordinary dynamic headroom of 7.3dB…translating into independent tests that demonstrate some of the highest power outputs seen in this type of equipment. Google “HiFi Classic.net” review for full specs but noteworthy that they measured bursts of close to 600w RMS per channel into 8ohm speaker loads, and well over 1000w per channel into 4ohm loads. Better still, watch the YouTube video entitled “1985 Proton D1200 Amp review & Dyno test” by Williston Audio Labs - their data is conclusive, this is a fabulous piece of old school HiFi kit. Note that this sale is for the Proton Pre/Power amp combination only, no other equipment visible in the photos is included, thanks. BtW…do yourself a favor if you haven’t already taken a look at some of the other sad examples of the d1200 for sale right now…without the original pre-amp paired with it…this is compelling in terms of the 1st class quality condition and rare opportunity to purchase them together. I have videos of the units working with vinyl and tape sources but was not able to post to eBay as example, message me if you’d like to see them in all their glory, maybe they let you send links to YouTube etc.

Rare and in near perfect condition combination of Proton D1200 stereo power amp and 1100 Pre-amplifier, both items in perfect working order, cases are in mint condition, not scratched in any way and the clear front faceplate on the D1200 is absolutely immaculate. I am only selling because I moved onto collecting 1970’s silver faced equipment vs black 1980’s gear. If you have proactively searched for this very rare pre/power amp combination then you need no explanation - however, this is a highly attractive set featuring massive Dynamic Power on Demand circuitry that provides a quite extraordinary dynamic headroom of 7.3dB…translating into independent tests that demonstrate some of the highest power outputs seen in this type of equipment. Google “HiFi Classic.net” review for full specs but noteworthy that they measured bursts of close to 600w RMS per channel into 8ohm speaker loads, and well over 1000w per channel into 4ohm loads. Better still, watch the YouTube video entitled “1985 Proton D1200 Amp review & Dyno test” by Williston Audio Labs - their data is conclusive, this is a fabulous piece of old school HiFi kit. Note that this sale is for the Proton Pre/Power amp combination only, no other equipment visible in the photos is included, thanks. BtW…do yourself a favor if you haven’t already taken a look at some of the other sad examples of the d1200 for sale right now…without the original pre-amp paired with it…this is compelling in terms of the 1st class quality condition and rare opportunity to purchase them together. I have videos of the units working with vinyl and tape sources but was not able to post to eBay as example, message me if you’d like to see them in all their glory, maybe they let you send links to YouTube etc. All the very best, happy hunting for this kind of stuff, I love it.

SOLD AS-IS FOR PARTS OR REPAIR. It may function properly but I have not fully tested it so I am selling it FOR PARTS OR REPAIR IN “AS-IS” CONDITION WITH ABSOLUTELY NO RETURNS ACCEPTED! This Proton D1200 Stereo Power Amplifier is a rare find for any audio enthusiast or collector. Although it is being sold for parts or repair, this amplifier still holds significant value due to its brand and type. With its sleek design and powerful features, this amplifier is sure to enhance any home audio setup.

ITEM: PROTON AA-1150 2-Channel Stereo Power Amplifier DESCRIPTION: - (VIEW) Images - VGC COSMETIC CONDITION: - (See Images) - Xclnt Condition OPERATIONAL/TESTED CONDITION: - *Unit Has 1-Dead Channel (Un-Known Issue) - * Repair Required - * SOLD AS-IS INCLUDES: - Proton AA-1150 - Owners Manual SHIP DETAILS: - UPS Ground: $64 w/Tracking - Insured - XL Package & Heavy - Professional Packaging w/Care: (Bubble, Styrofoam. Box) MISC: - Ebay 20+ Years Trusted Member - 100% Feedback

Willkommen zu meinem Angebot !Sie bieten hier auf :Vollverstärker Proton D540 in Funktion vorwiegend als Vorverstärker genutztleichte Aussetzer im untersten Lautstärkebereichbehebbar durch Drehen des Volumenreglersdieser sollte gereinigt werden...Ansonsten technisch in Ordnung ist bis zum Verkauf noch in Gebrauch. mit Gebrauchsspuren, siehe Bilder no shipping outside Germany Versand als Paket bis 31kg per Dhl + Polsterung : 25 Euro nur Deutschlandoder Abholung : - mit Barzahlung innerhalb 3 Tagen nach Auktionsendesollten Sie sachliche Fragen zum Artikel haben- vor Gebotsabgabe -erreichen Sie mich über die im Angebot enthaltene Funktion dieser Plattform- geantwortet wird innerhalb und bis 12 Stunden vor Ende des Angebots Da es sich um einen Privatverkauf handelt, kann ich keine Garantie nach neuem EU-Recht übernehmen. Der Bieter erklärt sich damit einverstanden und erkennt dies mit seinem Gebot an! Demnach erfolgt der Verkauf unter Ausschluss jeglicher Gewährleistung, Garantie , Sachmängelhaftung , Nachverhandlungen oder Rücknahme! Die von mir erstellten abgebildeten Fotos dienen der Veranschaulichung für Sie - nicht der Werbung oder um eine Nähe zum Inhaber der Rechte vorzuspiegeln. Die angegebenen Namen sind rechtlich geschützt und werden hier nur verwendet, weil sie Bestandteil des Produktes sind.