Audio Database

SC-11
Commentary

In response to the digital age, this control amplifier is centered on a circuit configuration that requires a wide dynamic range and high-speed playback.

It uses an NF-CR type equalizer that performs low-frequency turn-over with an NF circuit and high-frequency roll-off with a CR network.
In addition, the equalizer amplifier and flat amplifier are DC unit amplifiers with push-pull circuit configuration for all stages from input to output. This improves distortion characteristics and SN ratio at low NFB.
The first stage is equipped with an ultra-low noise, high gmFET + cascode bootstrap circuit to prevent adverse effects of impedance fluctuations.
The output stage of the 2-stage SEPP circuit provides sufficient idle current to achieve complete class A operation.

Equipped with a direct switch that can be directly connected to the power amplifier through the selector and volume.
By simplifying the signal line, the freshness of sound is kept and the SN ratio in practical conditions is improved.

It is equipped with an MC head amplifier to draw out the regenerative capacity of the MC cartridge.
The circuit adopts a push-pull configuration in which ultra-low-noise transistors with one channel of 6 are connected in parallel.

Model Rating
Type Stereo control console
Rated Output / Impedance Flat Out : 1.5V/50 Ω
Input Sensitivity / Impedance Phono MC : 125 μ V/100 Ω
Phono MM : 2.5mV/47k Ω
High Level : 150mV/47k Ω
Total harmonic distortion factor Not more than 0.002%
Frequency Response (RIAA) 20 Hz ~ 100 kHz + 0 -0.25 dB
Signal-to-noise ratio (IHF-A) Phono MC:92dB
Phono MM:93dB
High Level:115dB
External dimensions Width 454x Height 121x Depth 386 mm
Weight 11.5kg