Audio Database

Commentary

This is a 4-channel synthesizer equipped with a unique phase modulation circuit and phase shifter based on the Sansui QS method.

By adding a QS-1 and a rear power amplifier or pre-main amplifier, you can play four channels.

In addition to Matrix 4-channel records and FM broadcasts, you can enjoy 4-channel playback of 2-channel sources from records, tape, or FM stereo broadcast transmission, as well as discrete 4-channel source playback control.

Equipped with a function switch, you can select a 4-channel sound field effect and reproduction method according to the number of songs, composition and recording method.

There are two types of front and rear output circuits, Low and High, so you can choose your favorite amplifier whether it is a main amplifier or a pre-main amplifier.

SANSUI's original phase modulation circuit allows the dynamic range to be expanded.

A specially developed IC-based quasi-electronic circuit is used to obtain a natural sound field.

4-channel recording of 2-channel source is possible with 4-channel tape deck.

Left / right balance of front and rear can be independently adjusted.
In addition, the balance adjustment of front and rear is a slide type.

Equipped with 4 VU meters to check the balance.

Model Rating
Type 4-channel synthesizer
Input Sensitivity / Impedance Rated input : 130mV/50k Ω (2 ch)
Minimum Input : 90 mv (2 ch)
Tape Monitor 2 ch : 130mV/50k Ω
4 ch : 775mV/50k Ω
Output level
Rated power (0 VU) Low output:130mV(4ch)
High output:430mV(4ch)
Maximum power output Low output:1V(4ch)
High output:3.5V(4ch)
Recorded output 130mV(2ch)
775mV(4ch)
Frequency characteristic Front : 20 Hz to 20 kHz ± 1 dB
Rear solo : -10dB (10 kHz)
Concert Hall 1 : 20 Hz to 20 kHz + 1 -2dB
Concert Hall 2 : Right + 6 dB at 50 Hz, Left + 6 dB at 10 kHz
Surround : + 6 dB at 50 Hz
Synthesizer circuit Sansui QS matrix method and phase modulation method
Rear channel phase modulation Maximum 180 ° (10 kHz, Sun Sui Phase Modulation Method)
Semiconductor used Transistor : 20
IC : 8
Diode : 12 pcs
Zener diode : 1 unit
Power supply voltage 100 VAC, 50Hz/60Hz
External dimensions Width 395x Height 127x Depth 278 mm
Weight 5.5kg