TRIO KENWOOD KN 6644 Quadrixer Pre Amplifier 4 Channel Vintage 1971 WORK GOOD

TRIO KENWOOD KN 6644 Surround Sonic Quadrixer Pre Amplifier 4 Channel Vintage 1971 WORK Good Look

All Refurbished, Working 100%

Original By Japan, Working on 110/120/130/220/240 volts

TRIO KN-6644

¥ 49,800 (around 1971)

Surround Sonic quadrixer can be enjoyed with 4 channels of 2 channel source as well as discrete source.

It supports all four channel playback circuit systems, including discrete, quadrix, delay, and quadrix + delay.

You can select the most suitable format to play any program source recorded with 4 or 2 channels, such as FM, disc, or tape.

The encoder and decoder -in encoder and decoder circuits so that you can encode 4-channel sources and record 2-channel audio, or use the decoder to record 2-channel sources as 4-channel audio.

Equipped with a quadrix mode switch, you can use the 2-channel source in a position where you can maximize the 4-channel effect according to the recording characteristics and songs.

In 2-channel mode, you can play back two channels of your hand-held source. In the Hall1 mode, you can add a delay component to the quadrix 4-channel public relations speaker to obtain a concert hole-like tone. In the Hall2 mode, you can play back only the delay component from the rear speaker. In the Quadrix mode, you can enjoy the current 2-channel source and the quadrix recorded source with 4-channel realism.

Equipped with a direction switch, the position of the front can be changed to front, back, left and right.

Equipped with rear position control switch.

By adjusting the volume control knob for the rear speaker and the mixing knob, you can achieve the effect of moving the rear sound source forward and backward without moving the speaker.

Type Surround Sonic quadrixer

Input sensitivity / impedance (rated input 0 VU) 2-Channel : Aux/Tape :

200mV/30k Ω

4-channel : Aux/Tape : 200mV/30k Ω

Maximum power output 2-channel :

Aux/Tape : 4 v

4-channel : Aux/Tape : 4 v

Output level Rated output (0 VU) : 0.1 V (Low), 1 V (High)

Maximum output : 4.5 v (High)

Frequency characteristic

2 Channel

Front : 20 Hz to 20 kHz ± 1 dB

Rear : 20 Hz to 20 kHz + 1 -2dB

4-channel

Front : 20 Hz to 20 kHz + 0 -1dB

Rear : 20 Hz to 20 kHz + 0 -1dB

Signal-to-noise ratio 2 Channel

Front:75dB

Rear:70dB

4-channel

Front:75dB

Rear:75dB

Delay time 20 ~ 35m/sec

Reverberation time 0 to 2.3 sec

Accessory circuit quadrix circuit

Delay circuit

Direction circuit

4ch-2ch conversion circuit

Power supply voltage 100 VAC / 117 V, 50Hz/60Hz

Power consumption 20W

External dimensions Width 495x Height 134x Depth 271 mm

Weight 6.9kg