Audio Database Pioneer A-535 39,800yen(1989 release) Description 　 The high cost performance Integrated Amplifier which inherited the clean & real thought of A-636. A function switch is shortest-ized to a signal input part, and is arranged to it, and distortion of sound is suppressed by shortest-izing a signal path. Moreover, switchpoints, such as a balance, a tone control circuit, a loudness circuitry, and the direct switchpoint which can jump circuitries are carried, and, thereby, it can input into a straight at a power amplifier part. In order to stop a self-oscillation and an extraneous vibration, the measures against vibration proof are taken against each part. The honeycomb chassis was adopted as the chassis and the honeycomb heat sink excellent in the heat-dissipation effect and the periodic-damping property is adopted. Non switching circuit type IBM PCN II is carried, and thermal distortion which takes place from the drift of an idle current, and the nonlinear distortion of an output stage are improved greatly. Each part is asked for thorough non-magnetic-material-izing and the outstanding vibration proof performance, and examination and a study are added and adopted as a resistor, a capacitor, and codes. The man month/MC equalizer change functionality which can use MC cartridge is carried. The oxygen-free-high-conductivity-copper power cord with a polar window in which consideration was carried out to the influence of external noise is adopted. Moreover, the nickel phosphorus plating which reduces nonlinear distortion was adopted as the power plug, and the vice type large-sized termination is adopted as a speaker terminal. The oxygen-free-high-conductivity-copper line is adopted as the code of a signal system and a power supply system. Furthermore, the copper plating screw effective for vibrational absorption is adopted. Rating of a mode Form Stereo Integrated Amplifier Output power (both channel drive) 1kHz: 95W+95W (4 ohm, 0.005%) 20Hz - 20kHz : 80W+80W (4 ohm, 0.02%) 70W+70W (6 ohm, 0.015%) 60W+60W (8 ohm, 0.008%) Dumping factor (1kHz, 8ohm) 100 Input sensitivity/impedance Phono man month: 2.5mV / 50kohm Phono MC: 0.2mV/100 ohms compact disk, Tuner, Line, DAT/Tape1, Tape2:150mV/40kohm Phono maximum permissible input (1kHz, 0.008%) MM:150mV MC:12mV An Output voltage/impedance DAT/Tape1, Tape2, Line, Rec, Adaptor Out:150mV /, 2.2kohm Frequency characteristic Phono man month: 20Hz-20kHz±0.3dB Phono MC: 20Hz-20kHz±0.5dB compact disk, Tuner, Line, DAT/Tape1, and Tape2:2.5Hz-100kHz+0 -3 dB Tone control (Volume -40dB) Bass: ±8dB (100Hz) Treble: ±8dB (10kHz) Loudness contour (Volume -40dB) 100Hz:5dB 10kHz:3dB SN ratio (IHFA network) Short circuit Phono MM:88dB(2.5mV Phono MC:70dB(0.25mV) compact disk, Tuner, Line, DAT/Tape1, Tape2:107dB Speaker load impedance A, B:4ohms - 16ohms A+B: 8ohm-32ohm Supply voltage AC100V, 50Hz/60Hz AC outlet Power-switch interlock: Two lines (200W) Power-switch un-interlocking.: One line (100W) Power consumption (Electrical Appliance and Material Control Law) 160W Dimensions Width 420x height 126x depth of 351mm Weight 8.1kg