The Technics SU-V470 is a stereo integrated amplifier produced by Technics (Matsushita/Panasonic) around the early 1990s (specifically 1990-1992). It is known for using Technics' Class AA amplifier technology and "PXS cap" (Philips X-tal Sound) capacitors, which were designed to reduce distortion and improve sound quality. Key Specifications Power Output: 65 watts per channel into 8Ω (stereo) or 90 watts per channel into 4Ω (stereo). Frequency Response: 2 Hz to 120 kHz (Power Amp Direct mode). Total Harmonic Distortion (THD): Very low, rated at 0.0009% at 8Ω. Signal-to-Noise Ratio: High, up to 106 dB (Power Amp Direct mode). Inputs: Features 6 inputs, including Phono (selectable for both MM - Moving Magnet and MC - Moving Coil cartridges), CD, Tuner, Aux, and two Tape loops (Tape 1 and Tape 2/DAT). Outputs: 5 outputs, including a headphone jack and connections for two pairs of speakers (A and B). Controls: Includes bass and treble tone controls, a loudness function, and a "Power Amp Direct" switch which bypasses the tone control circuit for a cleaner signal path. Dimensions: 430 x 125 x 320 mm. Weight: Approximately 8 kg Features and Technology Class AA: This proprietary Technics technology uses separate voltage and current amplifier stages, aiming to achieve the linearity of Class A amplification without the typical heat and inefficiency, thereby minimizing crossover distortion. PXS (Philips X-tal Sound) Cap: These high-quality capacitors were used in the power supply to ensure stable power delivery and reduce noise. Versatility: The range of inputs, particularly the MM/MC phono stage, makes it a versatile central component for various audio setups, including turntables and modern digital sources. The SU-V470 is generally well-regarded as a solid, reliable, and high-performance amplifier from the peak of 1990s Japanese hi-fi audio engineering.