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Here is a clean, serviced Proton AA-1150 stereo power amplifier, featuring the classic large dual green decibel output meters and Proton’s well-known Power Envelope amplifier design.The AA-1150 is rated at approximately 50 watts per channel, but like many Proton/NAD-era designs, it was built with strong dynamic headroom and real-world drive capability. The oversized green meters give this amplifier a distinctive vintage look and make it a great match for a classic preamp, rack system, or dedicated two-channel setup.This unit has been serviced, cleaned, detailed, and bench tested by Bash Vintage Audio. It is working properly and presents well for a vintage power amplifier from this era.HighlightsProton AA-1150 stereo power amplifier Rated around 50 watts per channel Large dual green dB output meters Proton Power Envelope dynamic amplifier architecture Clean black chassis with classic vintage hi-fi styling Strong visual appeal for rack systems or listening rooms Serviced, cleaned, and tested Great pairing with vintage preamps, tuners, or control amplifiers Final pre-shipment test completed before packing Service / TestingThis amplifier has been inspected, cleaned, and tested prior to listing.BVA prep includes: Controls and switches cleaned Input/output connections checked Exterior cleaned and detailed Meter operation checked Meter lighting checked Audio output tested Bench tested for proper operation Final pre-shipment test before packing As with all vintage audio equipment, this is a decades-old electronic component and should be treated accordingly. It is working well at the time of listing and will be carefully packed for shipment.Cosmetic ConditionThe unit presents well overall with normal age-appropriate wear. The front display area and large green meters show nicely, and the amplifier has a clean vintage appearance.Please review all photos carefully, as they are part of the description. Expected signs of age may include small marks, minor scuffs, light finish wear, or other cosmetic imperfections consistent with vintage equipment.IncludedProton AA-1150 stereo power amplifier onlyNot Included No original box No manual No interconnect cables No additional accessories unless shown or specifically stated Packing & ShippingThis unit will be professionally packed by Bash Vintage Audio using heavy-duty materials.Shipping includes: Protective wrapping Reinforced packing Insured ground shipping Tracking provided after shipment Vintage audio gear is heavy and delicate, especially units with large meter/display sections. Proper packing is included in the shipping cost.Returns / Reverb Protection PolicyThis is a vintage electronic item and will be tested again before shipment. It will be packed carefully and shipped insured.If there is an issue after delivery, please contact us first through Reverb messages. We will work through the Reverb process to resolve it properly.Depending on the issue and Reverb’s guidance, resolution may include: Troubleshooting support through Reverb messages Local repair reimbursement when pre-approved through Reverb/Reverb Protection Return for refund if required through the Reverb return process Please do not attempt repairs or modifications before contacting us and Reverb, as that may affect Reverb Protection eligibility.We stand behind accurate descriptions, careful testing, and safe packing. Vintage audio equipment is decades old, so minor age-related cosmetic wear should be expected unless otherwise stated.About Bash Vintage AudioBash Vintage Audio specializes in carefully selected, cleaned, tested, and properly packed vintage stereo equipment. Every unit is handled with attention to presentation, honest description, and safe delivery.We focus on classic receivers, amplifiers, tuners, and components from the golden era of hi-fi.SEO / LLM KeywordsProton AA-1150, Proton AA1150, Proton stereo power amplifier, Proton power amp, vintage Proton amplifier, Proton Power Envelope, Power Envelope amplifier, vintage stereo amplifier, vintage power amplifier, green output meters, dual green dB meters, large decibel meters, 50 watt stereo amplifier, serviced vintage amplifier, cleaned vintage audio, bench tested amplifier, Bash Vintage Audio, BVA tested, vintage hi-fi amplifier, 1980s stereo amplifier, rack system amplifier, audiophile vintage amp, classic stereo component, two channel power amplifier.
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Proton Electronic Industrial Co., Ltd. emerged from Taiwan in 1981, establishing its base in Banciao, Taipei-Hsien, as a manufacturer targeting the U.S. consumer audio market with high-quality components. Linked to Fulet Electrical, which produced notable NAD amplifiers, the brand launched around 1984 to expand into consumer electronics, including acclaimed TV monitors like the 600M and 602M models. By 2009, it remained active, building on a heritage of precision engineering from shared facilities with brands like NAD and Dynaco.
The company focused on premium hi-fi gear optimized for real-world performance, emphasizing tuners, receivers, amplifiers, and integrated systems that drove everyday loudspeakers with exceptional clarity. While not delving into headphones or cables, Proton's lineup prioritized robust playback under practical listening conditions, from radio reception to vinyl and cassette sources, earning praise for its engineering rigor in the 1980s.
Proton holds a solid reputation in vintage hi-fi circles as a mid-tier powerhouse, favored by collectors for its reliable, high-value sound that punched above its price point. Positioned as an accessible alternative to elite brands, it appeals to discerning buyers seeking durable, no-nonsense performers rather than boutique exotica, with ongoing interest in its schematics and restored units.
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