After the FAQs, we list the Proton service manuals we sell, which are available as a PDF download or hard copy. Many of the manuals are immediate pdf downloads, so they will be ready for you to download right after ordering. PROTON AA1150 AA-1150 POWER AMPLIFIER. PROTON AC300 CD/DISK PLAYER. PROTON AC300II AC-300II CD/DISK PLAYER. PROTON Proton AA-1150 Stereo Power Amplifier Dynamic Power on Demand (DPD) Dual Mono Construction (DMC) Power output: 50 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.02% Damping factor: 150 Input sensitivity: 1V Signal to noise ratio: 115dB Speaker load impedance: 2Ω to 8Ω Dimensions: 420 x 122 x For sale is a rare proton 1100 stereo preamplifier. This preamp has been fully recapped with nichicon audio grade capacitors and serviced. Everything tested and works flawless. Perfect match to the proton aa-1150 or proton d 1200 etc. Very versatile preamplifier with dual outputs regular and high. I believe the high output goes to 5v. The Proton D-1200 high current amplifier has been carefully. Detail and depth of performance which make Proton products among. Service manual - Nobbixxx. AKAI AA-1015 AP-100C CS-703D (1979). Akai