Amplificator putere Technics SE-A 5 MK 2 cu Preamplificator Technics SU-A 6: ie1 intrare, 4 iesiri, impedanta 4-16 ohmi, consum din retea 980W, Made in Japan, volum pe fiecare canal, mufe aurite, Vumetre mari iluminate, transformator toroidal, 2 radiatoare, 8 finali, 4 condensatori de filtraj, iesire casti, computer drive new class AA, si preamplificatorul made in Japan, 6 intrari, 2 iesiri, mufe aurite, super bass, reglaj bass, inalte, pe frecvente,subsonic high filter, mono/stereo, loudness, muting, phono selector, DC, via tone, este si usita.



General

Manufacturer: Technics
Model: SU-A 6 MK 2
Type: Preamplifier
Years of manufacture: 1983 - 1988
Made in: Japan
Color: Black
Power consumption: 17 W
Dimensions: 430 x 98 x 360 mm (WxHxD)
Weight: 5.9 kg
Original price approx.: 1'500 DM

Connections

Number of inputs:
Phono MM: 2.5 mV / 47 kOhm, 150 mV max.
Phono MC: 0.1 mV, 220 Ohm, max. 15 mV
Tuner: 150 mV / 47 kOhm
CD: 150 mV / 47 kOhm Aux: 150 mV / 47 kOhm

Tape Play 1, 2,3 : 150 mV / 47 kOhm
Video:
Computer Control In:
Number of Outputs:
Tape Rec 1, 2, 3: 150 mV, 600 ohms.
Video Rec:
Computer Control Out:
Pre Out: 2 V, max. 8 V, 2 Ohm

Technical Data

Frequency Response:
Phono: RIAA standard, + 0 dB, - 1 dB.
High level: 0.5 Hz - 200'000 Hz (+ 0 dB, - 3 dB)
Distortion factor: 0.002 %
Signal-to-noise ratio:
External voltage spacing: (nominal power)
Phono MM: 80 dB
Phono MC: 73 dB

Tuner/Aux: 100 dB
Tone control
Super Bass: 30 Hz, 0 - +10 dB
Bass: 50 Hz, ± 5 dB

Treble: 20 kHz, ± 5 dB
Super treble: 50 kHz, ± 10 dB
Loudness: + 7 dB at 50 Hz
High Filter: 7 kHz, - 6 dB / octave
Low Filter (Subsonic): 20 Hz, -12 dB / octave
Muting:

Special Features'

Gold-plated Cinch connectors
Front connectors
Video / Aux 1 input

Remarks
Other models in the same series:
Technics preamplifier
Technics SU-A 4 MK 2
Technics SU-A 6 MK 2

[[Technics power amplifier
Technics SE-A 3 MK 2
Technics SE-A 5 MK 2

Pictures
Excerpt from brochure: Technics combi SU-A 6 MK 2 / SE-A 5 MK 2

Reports
Weakness is the MN6631A ICs - no longer available and sensitive to input pulses. Responsible for audio input switching. Owners often report short circuits in the ICs when active RCA connections are disconnected or plugged during operation. This is generally not recommended anyway. The ICs in question are numbered 301 to 305 in the service manual. Symptom: Device starts, input switching does not work, input selector LEDs dark and fuse in the 18 (23) volt supply area blows immediately.

Links