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

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

Proton D540 Integrated Amplifier. NO sound SOLD AS IS. It coming out of protection very clean unit

Tuner section is not operable. Removed the AM antenna from the rear. Scratchy pots after sitting for a while, goes away after use. Otherwise sound pretty nice. Both A and B channels work. Great as a preamplifier. Has pre outs.

Vintage Proton Model 520 Stereo Amplifier with Phono Input - Fully Working. Condition is Used. Shipped with USPS Ground Advantage.

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

Proton D540 Stereo Integrated Amplifier, Powers On but Untested. Parts/Repair? This is a piece of vintage stereo electronics, the Proton D540 Stereo Integrated Amplifier. I obtained this at an estate sale, so I don’t know much about it and I don’t have any other equipment to test it. Therefore, this is being sold AS IS, and as a parts piece or possible repair since I don’t know if it actually works. It does power on but a few of the buttons are stuck - the two “video” buttons and the “tape 2” button. You can still press the other function buttons and they light up, but those 3 buttons are stuck and I am not sure how easy that is to remedy. The unit seems to be in good cosmetic condition and there are no missing pieces, knobs, etc. It comes with the original factory box and styrofoam shipping inserts but there is no other paperwork/instructions. The box has some wear, minor tearing, etc. and some old tape on it. In addition, one of the styrofoam inserts has a chunk missing from the front of it but it still safely secures the unit inside. What you see in the pictures is what you get. I included pictures of all sides and close ups but feel free to ask any questions, I am happy to answer what I can. Ships USPS Ground Advantage.

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

Proton DolbyDigital and Pro Logic Surround A/V Pre-Amplifier AS 2600.Ich habe das Gerät so ersteigert,wie es ist.Das Kabel und die Anleitung fehlt,aber es ist eine Fernbedienung dabei.Das Kabel dürfte kein Problem darstellen,könnte ich bei Bedarf dazulegen.Das Gerät war bei mir nie im Einsatz.Da ich ein anderes System habe und ich meine Sammlung verkleinern muß,wird der AS 2600 verkauft.Technische Daten bitte googeln.Keine Garantie und keine Rücknahme!

PROTON Model 520 Stereo Amplifier (Untested) with original box Good ConditionPlease see my other items.

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

Proton D1200 Endstufe +1100 Preamplifier. Ich verkaufe es als defekt, weil das Gerät nicht vollständig getestet wurde, auf den ersten Blick scheint es, dass nur eine der Anzeigelampen nicht leuchtet, außer dass es keine Probleme gibt, aber ich verkaufe es als defekt

Proton DolbyDigital and Pro Logic Surround A/V Pre-Amplifier AS 2600.Ich habe das Gerät so ersteigert,wie es ist.Das Kabel und die Anleitung fehlt,aber es ist eine Fernbedienung dabei.Das Kabel dürfte kein Problem darstellen,könnte ich bei Bedarf dazulegen.Das Gerät war bei mir nie im Einsatz.Da ich ein anderes System habe und ich meine Sammlung verkleinern muß,wird der AS 2600 verkauft.Technische Daten bitte googeln.Keine Garantie und keine Rücknahme!

UP FOR SALE!!! Proton D1200 Vintage Stereo Power Amplifier!!! A MUST HAVE FOR ANY MUSIC LOVER. AMPLIFIER IS IN GOOD CONDITION AND FULLY FUNCTIONAL. FEEL FREE TO MESSAGE IF YOU HAVE ANY QUESTIONS.

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

PROTON AI-3000 II CD Cassette Player Tuner Audio Amplifier CD works perfectly tuner works CASSETTE DECK DOES NOT WORK ( probably needs new belts ) NO REMOTE front flap does close but looks has though one of the hinges has snapped off so when flap is open its a little bit out of place and when shutting the flap you have to maneuver it slightly to lock it into place. ( see photos )

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

PROTON AM-455 Verstärker Amplifier Vintage Stereo Verstärker Amplifierfully functionnal, some scratches, sent from France it costs betwen 22 and 37€ of transport depending destination inside european union

For sale is a used Proton 1100 preamplifier. It is in pretty great shape, please look at the pictures. The proton engineers added some nice design concepts found in more costly preamps. They shielded the power transformer to keep stray fields down. They remote mounted the function switches back on the PCB in order to keep the signal path short. They used an Alps volume control to keep channel tracking constant . They designed an all-transistor power supply instead of using fixed regulators. They added a nice moving coil phono input. I recapped the power supply with premium Nichicon Fine Gold capacitors. It has been fully tested and sounds great. All sales are final. You will not get stuck with a non functioning preamp. US sales only please.I will ship this preamp with a copy of the owners manual. any questions, please ask.

PROTON AI-3000 II CD Cassette Player Tuner Audio Amplifier CD works perfectly tuner works CASSETTE DECK DOES NOT WORK ( probably needs new belts ) NO REMOTE front flap does close but looks has though one of the hinges has snapped off so when flap is open its a little bit out of place and when shutting the flap you have to maneuver it slightly to lock it into place. ( see photos )

Proton 520 NAD 3020 Rare Integrated Hifi Amplifier Fully Working. Very rare Proton 520, same as the Nad 3020. Fully working, excellent condition. One knob missing easily found on ebay

Proton DolbyDigital and Pro Logic Surround A/V Pre-Amplifier AS 2600.Ich habe das Gerät so ersteigert,wie es ist.Das Kabel und die Anleitung fehlt,aber es ist eine Fernbedienung dabei.Das Kabel dürfte kein Problem darstellen,könnte ich bei Bedarf dazulegen.Das Gerät war bei mir nie im Einsatz.Da ich ein anderes System habe und ich meine Sammlung verkleinern muß,wird der AS 2600 verkauft.Technische Daten bitte googeln.Keine Garantie und keine Rücknahme!