Technics SU-V60
¥ 64,800 (around 1986)
Commentary
Pre-main amplifier with classAA technology of SE-A100/SU-A200.
ClassAA has a VC-4 amplifier configuration with two types of amplifiers for each L and R. One is a pure class A voltage-controlled amplifier that is free from switching distortion and crossover distortion, and the other is a current-driven amplifier that drives speakers dynamically.
As a result, the voltage-controlled amplifier is freed from the burden of current supply, and the voltage can be controlled faithfully to the input signal. The current-driven amplifier supplies the current required to drive the speaker and eliminates adverse effects such as impedance fluctuations of the speaker.
The power supply section is equipped with a large transformer and a large capacitor with an instantaneous current supply capacity of 300A and excellent linearity. In addition, the output stage and the power supply section are integrated with an ingenious configuration by a unique concentrated power block, eliminating high-frequency distortion caused by electromagnetic radiation.
Equipped with a REC mode selector that allows you to select the recording source independently.
Equipped with the CD direct function, it is possible to connect directly to a volume without using the input selector.
The phono equalizer is a high-gain type with MC basic design. It is an ICL configuration combining a first stage amplifier with ultra-low-noise FET and a high-voltage and high-slew rate operational amplifier.
Large metal legs are used to suppress adverse effects caused by external vibration.
Model Rating
Type | Integrated amplifier |
Effective output (20 Hz to 20 kHz) | 100W + 100W (6 Ω, 0.004%) |
Total harmonic distortion factor | 0.002% (Rated Output -3dB, 20 hz to 20 khz) |
Frequency characteristic | 20 Hz ~ 20 kHz + 0 -0.2 dB 5 Hz ~ 120 kHz + 0 -3dB |
Signal-to-noise ratio | 100dB(IHF'66) |
Damping factor | 60 (8 Ω) |
Load impedance | Main or remote : 6 Ω ~ 16 Ω Main and remote : 12 Ω ~ 16 Ω |
Input Sensitivity / Impedance | Phono MM : 2.5mV/47k Ω Phono MC : 170 μ V/220 Ω Tuner, Aux, Tape : 150mV/22k Ω |
Phono SN ratio | MM : 86 dB (2.5 mV input) MC : 68 dB (250 μ V input) |
Phono frequency characteristics | 30 Hz to 15 kHz, RIAA ± 0.8 dB |
Tone control | Bass : ± 10 dB (50 Hz) Treble : ± 10 dB (20 kHz) |
Loudness control (VR-30dB) | +9dB(50Hz) |
Pwer | 100 VAC, 50Hz/60Hz |
Power consumption | 200W |
External dimensions | Width 430x Height 116x Depth 340 mm |
Weight | 8.5kg |