TECHNICS SH-3434 Audio Scope 4 Channel RARE Hi Fi Vintage 1973 WORK Good Look
Working On 220/240 Volts
Technics SH-3434
Very RARE (around 1973)
In addition to the discrete AFD control function on the SH 3400, it also incorporates an AFD scope that allows you to visually check the 4 ch sound field. This is a full-scale control center for the 4 ch era.
It uses a unique AFD scope that allows you to visually confirm the sound field of the four channels. This allows you to make adjustments such as phase switching, volume, and front-back balance necessary for precise four channel playback.
It can be used not only for 4-channel sound fields, but also for waveform check of each channel and for oscilloscope for observation.
The discrete sound field can also be controlled freely.
Equipped with a phase selector switch.
It is equipped with recording and reterminal for 4 ch tape deck.
Model Rating
Type 4 ch Visual Control Center
Circuit system AFD Control with AFD Scope
4-channel control center
Decoder and 4-ch Amplifier Unit
Rated output 100mV
Maximum power output 2V
Output impedance 15k Ω
Input Sensitivity / Impedance 4 ch Discrete : 100mV/40k Ω
2 ch (Low) : 100mV/50k Ω
2 ch (High) : 1000mV/160k Ω
Tape monitor 2ch Rec Out:100mV
Playback : 100mV/50k Ω
4ch Rec Out:100mv
Playback : 100mV/40k Ω
Frequency characteristic 20 Hz ~ 20 kHz + 0 -3dB
<4 ch Control Unit>
4ch Selector Discrete1, 2 : Discrete 4-ch input switching
Matrix/Natural/Small Hall/Large Hall/Stage : Realistic effect switching
AFD (matrix
Both discrete and adjustable) Width : Width and adjustment of matrix constant
Depth : adjust forward and backward depth and matrix constant
Volume Changes the volume of each channel simultaneously
Balance Change the volume balance before and after
Tape Monitor 2 ch ⇔ 4 ch
Mode Switching between 2 ch and 4 ch
<Scope Part>
Scope Selector 4-channel Scope : 4-channel sound field observation (AFD scope)
Wave Form : Waveform observation for each channel
Scope Source : Switching between internal (direct connection) and external signal
Scope Gain : adjusting waveform size
Position : Waveform Position
Bright : Adjust Brightness
<General>
Attachment Mode Switch (4 ch ⇔ 2 ch)
4 ch balancer connection terminal
Tape monitor switch
Power supply voltage 220/240 VAC, 50Hz/60Hz
Power consumption 8W
External dimensions Width 410x Height 141x Depth 330 mm
Weight 7.85kg
