Audio Database

SC-9
Commentary

This is a control amplifier with an advanced circuit structure and carefully designed materials that emphasize sound quality. In addition, it is equipped with functions that enhance the enjoyment of music playback.

The basic circuit consists of a phono amplifier with a first stage of ultra-low-noise FET differential input and a pure A-class SEPP output stage with exactly matching pair characteristics, as well as a DC amplifier configuration for all circuits including an MC head amplifier with ultra-low-noise FET input, to enhance bare characteristics.
In addition, the impedance of the feedback circuit is completely lowered to improve the SN ratio. This makes it possible to reduce the distortion factor and noise with the minimum necessary amount of NFB, and achieves the Low-TIM design that eliminates the occurrence of excessive navy blue strain caused by excessive NFB.

Equipped with MM/MC independent cartridge load selector, MC can select load resistance value of 4 position and MM can select load resistance value of 5 position, and it is compatible with all cartridges.

In addition to the Bass and Treble, which have two low and two high turn-over frequencies and can be controlled by ± 10 dB each, it is equipped with an independent left and right tritone control equipped with a Mid control.
In addition, a Tape EQ switch is mounted to guide this control signal to the recording output.

Equipped with two sets of record selectors that can select 4-position recording output including mutual dubbing.

Coaxial cable is used for the shielded cable part that handles small signals, and high-purity oxygen-free copper wire is used for all other lead wires.
In addition, it is equipped with a TONE defeat switch and a flat amplifier bypass switch that can completely simplify the signal path.

Model Rating
Type Stereo control amplifier
Input Sensitivity / Impedance Phono1, 2, MM : 2mV/1k Ω, 10k Ω, 27k Ω, 47k Ω, 100k Ω
Phono1 MC : 0.2mV/10 Ω, 47 Ω, 100 Ω, 220 Ω
High Level : 150mV/40k Ω
Rated Output / Impedance 1.5V/100 Ω
Total harmonic distortion factor Not more than 0.004%
Cross modulation distortion factor Not more than 0.004%
Frequency characteristic 20 Hz to 20 kHz ± 0.2 dB (RIAA)
Signal-to-noise ratio (IHF-A) Phono MM:88dB
Phono MC:70dB
High Level:104dB
External dimensions Width 474x Height 172x Depth 266 mm
Weight 11.5kg