Amplify your audio experience with the PROTON D1200 Stereo Power Amplifier. This black amplifier boasts two channels and four inputs, including stereo L/R RCA and raw cable speaker jacks, to connect to your favorite devices. It also has two outputs, including RCA and banana speaker jacks, to provide high-quality sound to your home audio system. Enjoy crystal-clear audio with this reliable and durable power amplifier, perfect for any home audio setup. The Proton D1200 model offers superior sound quality and performance, making it an excellent choice for music lovers and audiophiles. Get ready to enhance your audio experience with this top-of-the-line power amplifier. Voted the most powerful 100x2 Amplifier of its time with 6 db headroom this amplifier sounds wonderful . Please research for further info This was recently serviced by Tech RCA inputs were replaced and soldered direct (Upgrade for this product)All the display bulbs were replaced with the highest quality Green bulbs These are truly wonderful Amplifiers that produce very high sound levels in addition to very high quality .

Listed as for parts or not working because item has been stored for at least a couple decades and unable to thoroughly test and unfamiliar with the device so I don’t want to guarantee that’s is 100% fully functional and mislead buyers. Also when I click radio nothing was happening. I know shipping is $100 but that’s about how much it costs when I just sold it to another buyer and then I had to refund the buyer. This weighs like 35 pounds and is extremely heavy.

Proton AA-1150 Dual-Mono Power Amplifier Actually it powers on, meters and one channel work great, the other channel does work, but has static or noise. In very good condition, minor scuffs or marks. See photos for details. Listed for parts or repair, no returns or refunds. Lower 48 shipping only.

All functions work good but cd tray need help to open, it plays cds, cassette tape works, all inputs work, as is, no returns

This is a reprint of an Audio Review from 1988! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. . You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

All Channels Tested and Working. I Also Do One Final Test On All Channels Before Shipping Out. AA-2580 Features ? 80 watts per channel at 8 ohms ? 100 watts per channel at 6 ohms ? 120 watts per channel at 4 ohms ? High current output ? Ultra-quiet thermal sensing two-speed cooling fan ? Very low THD at 0.03% ? 20 Hz - 20 kHz < +/- 0.5 dB frequency response ? 100 dB signal to noise ratio ? 60 dB channel separation at 10 kHz ? 1 Vrms input sensitivity ? DC drift, thermal and short protection ? +5 volt remote power on/off ? Gold-plated RCA inputs ? Five-way gold-plated speaker binding posts

Proton Verstärker-Amplifier AM-656 Veren Hifi. Tested. stärker Selt 12 kg! RAR Das Gerät wurde getestet. Alle Kanäle funktionieren soweit. Source lässt sich durchschalten. Das Display ist ohne Funktion. Daher konnte nicht jede Einstellung getestet werden. BASS TREBLE und BALANCE lassen sich einstellen. Speaker A+B sind funktionsfähig. Das Gerät lässt sich nutzen aber ohne Display sind die ausgewählen Einstellungen nicht zu sehen. Daher wird das Gerät als defekt verkauft. Gehäuse weist leichte Gebrauchsspuren auf. Einige Gehäuseschrauben fehlen. Lieferung ohne Zubehör. Bitte beachten Sie das die Bilder Bestandteil der Auktion sind. Aufgrund der Lichtverhältnisse bei der Produktfotografie und unterschiedlichen Bildschirmeinstellungen kann es dazu kommen, dass die Farbe des Produktes nicht authentisch wiedergegeben wirdJedes Gerät ist mit einem Garantiesiegel versehen. Eine Rückgabe oder Umtausch ist ausnahmlos mit einem intakten Siegel möglich. Geräte die geöffnet wurden sind von der Rückgabe ausgeschlossen. Alle Geräte wurden von uns getestet und bewertet. Sollte es dennoch ein Problem geben zögern Sie nicht und Kontaktieren uns. Wir finden eine Lösung! Auf alle Geräte erhalten Sie 12 Monate Gewährleistung!

The pictures you see are the exact item you will receive with only accessories you see and item in the pictures. If not in the pictures it is not included in this particular item. Item is being sold Used . Please refer to pictures for details. If you have any questions or concerns feel free to message thank you. NO P.O Boxes or APOS lower 48 only Lower bin

This Proton AI-3000 II audio system is a versatile and high-quality integrated amplifier that is perfect for any audio setup. With a range of audio inputs including phono/turntable, video, and pre-out, you can easily connect all your favorite devices. The amplifier features raw cable speaker jacks for easy hookup and great sound quality. In addition to its excellent audio features, this Proton AI-3000 II also has a sleek black design that looks great in any environment. Whether you're a music aficionado or just looking for a great amplifier, this Proton AI-3000 II is a great choice. Listed as for parts or not working because item has been stored for at least a couple decades and unable to thoroughly test and unfamiliar with the device so I don’t want to guarantee that’s is 100% fully functional and mislead buyers.

Proton AA-1150 power amp Black Large illuminated meters Great overall condition 50 watts per channel into 8 ohms Never been opened Amazing amp outstanding clarity, depth, balance

*UPDATE* I realized from viewing my own advert that my pictures weren’t really representative of how bad the case of this amplifier looked. I didn’t want the buyer of this amp to be disappointed by this and so I removed it and gave it a refresh of flat black primer and paint. The last 4 pictures are new and will give you a better idea of what it looks like. I’ve personally owned this amplifier for 30 years. It has been used off and on again in rotation and has always worked flawlessly. The chassis is not perfect but the front glass is clean. I’ve never had to have this repaired. Its sound is astonishing when compared to other amps and receivers from the same era. They have all come and gone and this has stayed with me. I’ve owned so so so many amps, and this wiped the floor with a good many of them. Here’s some extra generic info I pulled from someone else’s advert. 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 channel Dynamic power: (at 8ohm/4ohm/2ohm) 280w/450w/600w IHF standard 20ms duration 100ms duration 220w/300w/350w Dynamic Headroom: (at 8ohm/4ohm/2ohm) 7db THD at rated power 0.02% Dimensions: 16.5” W x 14.5” D x 4.25” H Weight 25 lbs

Used amp, in working condition but certainly needs a tune-up and a good cleaning.I dont use it anymore, owned it for about 30 years now, currently dont need it. Its priced for someone to recondition and love or resell. IT IS NOT MINT but it 100% works.Right channel drops out at low volume, but I think thats dirty RCAs. Unit is currently boxed and ready to ship out.

Beautiful condition proton aa1150 power amplifier.50 watts per channel in to 8 ohm,100 into 4 ohm.2 ohm stable with 800 watts peak power.the amp works as it should and looks good doing it.extra large vu meters.amp has very little marks or scratches.come with a printed manual.will be double boxed.

Beautiful condition proton aa1150 power amplifier.50 watts per channel in to 8 ohm,100 into 4 ohm.2 ohm stable with 800 watts peak power.the amp works as it should and looks good doing it.extra large vu meters.amp has very little marks or scratches.come with a printed manual.will be double boxed.

Proton D1200 power amplifier Nice condition, Better Than New Inside If you want to save a bundle on this amp contact me using the blue letters on the last picture THE AUDIO PRIZE AWAITS YOU Here is another fine offering from the audio labs of Morris Electronic Repair Boutique This proton D1200 is extremely rare. At 100 Watts / 8 and the ability at music passages to deliver up to 1,600 Watts of audio power for short duration makes this amp perform super well with most speakers. It sports a dual mono power supplies and a single power supply that runs the 100 watts out. At large music passages. the high current & voltage mono power supplies kick in. BUT WAIT THERES MORE This unit has been completely recapped, excluding the rail caps, which checked better than new. The bias setting have been set to factory specs. The VU meters lamps have been replaced with LEDs so they will last a lifetime. Also new speaker binding post have been install that are super rugged. and a IEC power connector, and will come with a generic IEC power cord. Also new Tiffany RCA input jacks have been installed. This unit have undergone hours of testing and burn in under load, driven by a Harman Kardon CD 491 player into a Harmon Kardon 825 preamp into Paradigm B/P Espirit 300 w Towers. Please Note: I only ship in the US. No international shipping! As always I pack everything with the best of materials, so as to thwart the gorilla UPS handlers. It will arrive alive and unscathed. This amp is very heavy and there is a small additional charge reflected in shipping cost for I pay a lot for proper packing materials. But you will appreciate the effort when they arrive undamaged. The service manual & owner manual will be included (reproduced from original) along with amplifier spec sheets on each amp after testing. And will carry a one year iron clad warranty against all parts & labor and I will pay the shipping both ways in the unlikely event an issue should occur. Thank you, for reading all the verbiage, Any issues you should have I take care of them, Pronto, Period! No Ifs, Ands or Buts. This is why I maintain a 100% positive feedback. I answer all submitted questions.

nice powerfull amp..make offer--untested clean

This is a reprint of an Audio Review from 1988! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. . You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Review from 1988! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. . You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

Der Amplifier ist aus Nachlasser ist in einem gebrauchten Zustandfunktioniert altersbedingte Gebrauchsspuren sind vorhanden es wird alles versendet was auf den Bilder zusehen ist. Privatverkauf keine Rücknahmeweitere Details siehe Bilder

Proton D540 Integrated Amplifier sold Untested as Parts or Repair. Pretty Good Cosmetics with all knobs intact and several minor age related scuffs and nicks. All LEDs work, power cord is solid no frays, nicks or paint. Left hinge on the front cover door is broken but stays shut. No back story here, just picked the unit up from an estate sale last Fall. Please include $32.00 to cover Fast and Secure Shipping anywhere within the Continental US 48s Only. I ship Fast 5 days a week (M-F). Sold As Shown As Parts or Repair with No Returns. Thanks for viewing and Good Luck,