Technics - SU-CH7 / 4-Piece Midi Hi-fi set - Multiple models
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Technics four-piece vintage hi‑fi system from 1992, including SU‑CH7 amplifier, ST‑CH7L tuner, RS‑CH7 double cassette deck and SB‑HD301 speakers, serial FP1L627838, in very good physical condition and tested and working with remote control and power cord, total weight 16 kg.
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Description from the seller
Technics SU-CH7 + ST-CH7L + RS-CH7 + SB-HD301 – Vintage Hi-Fi System – Dolby B/C – Double Cassette – Made in Japan
Short sales description
A vintage Technics Hi-Fi system from the 1990s, consisting of the SU-CH7 amplifier, ST-CH7L tuner, RS-CH7 double cassette deck (with Auto Reverse and Dolby B/C), and a pair of SB-HD301 speakers.
SU-CH7 – amplifier
Specifications:
Power output: 2 × 25 W / 6 Ω
THD: 0.09%
Frequency response: 20 Hz–20 kHz
Inputs: Phono, Mic, DAT, CD, Tape
Phono: 3 mV / 47 kΩ
DAT/CD/Tape: 250 mV / 27 kΩ
Line S/N ratio: approx. 84 dB
5-band graphic equalizer:
80 Hz / 250 Hz / 1 kHz / 4 kHz / 12.5 kHz
Super Bass
Headphone output
Power consumption: 250 W
Dimensions: 215 × 110 × 303 mm
Weight: 4.3 kg
It is a compact amplifier, yet very well-equipped for its time.
The amplifier delivers 2 × 25 W at 6 Ω and features a 5-band graphic equalizer, Super Bass, and inputs for Phono, CD, Tape, DAT, and microphone.
The RS-CH7 is an Auto Reverse double cassette deck compatible with Normal, CrO₂, and Metal tapes, featuring Dolby B/C noise reduction.
This is one of the more interesting components of the set. Specifications
Double Cassette
Auto Reverse
4-track / 2-channel stereo
Speed: 4.8 cm/s
Compatible with Normal / CrO₂ / Metal
Dolby B + C NR
2 DC servo motors
Permalloy playback head
Permalloy record/playback head
Ferrite erase head
Wow & flutter: 0.1% WRMS
Frequency response (Metal): 30 Hz–17 kHz
CrO₂: 30 Hz–16 kHz
Normal: 30 Hz–16 kHz
S/N ratio with Dolby C: 74 dB
FF/REW (C-60): approx. 110 seconds
Power consumption: 16 W
Dimensions: 215 × 110 × 297 mm
Weight: 2.6 kg.
The ST-CH7L is an FM/MW/LW tuner with digital tuning.
Specifications
FM: 87.5–108 MHz
MW: 522–1611 kHz
LW: 144–288 kHz
FM sensitivity: 1.5 μV
FM S/N ratio: 58 dB
FM distortion: 0.3%
Selectivity: 50 dB
FM frequency response: 20 Hz–15 kHz
Dimensions: 215 × 55 × 295 mm
Weight: 1.4 kg.
The SB-HD301 speakers are Technics 2-way bass-reflex models, 6 Ω, 60 W Music / 30 W DIN. Speaker specifications:
2-way
Bass-reflex
Woofer: 12 cm cone
Tweeter: 6 cm cone
Impedance: 6 Ω
Music power: 60 W
DIN power: 30 W
Sensitivity: 85 dB/W/1 m
Crossover: 5 kHz
Frequency response:
45 Hz–30 kHz (-16 dB)
55 Hz–26 kHz (-10 dB)
Dimensions: 190 × 297 × 216 mm
Weight: approx. 3 kg/unit.
Electronics era: approx. 1991–1992
Speakers: approx. 1999
Total weight: approx. 14.3 kg
Remote control: compatible/original for the system.
Technics SU-CH7 + ST-CH7L + RS-CH7 + SB-HD301 – Vintage Hi-Fi System – Dolby B/C – Double Cassette – Made in Japan
Short sales description
A vintage Technics Hi-Fi system from the 1990s, consisting of the SU-CH7 amplifier, ST-CH7L tuner, RS-CH7 double cassette deck (with Auto Reverse and Dolby B/C), and a pair of SB-HD301 speakers.
SU-CH7 – amplifier
Specifications:
Power output: 2 × 25 W / 6 Ω
THD: 0.09%
Frequency response: 20 Hz–20 kHz
Inputs: Phono, Mic, DAT, CD, Tape
Phono: 3 mV / 47 kΩ
DAT/CD/Tape: 250 mV / 27 kΩ
Line S/N ratio: approx. 84 dB
5-band graphic equalizer:
80 Hz / 250 Hz / 1 kHz / 4 kHz / 12.5 kHz
Super Bass
Headphone output
Power consumption: 250 W
Dimensions: 215 × 110 × 303 mm
Weight: 4.3 kg
It is a compact amplifier, yet very well-equipped for its time.
The amplifier delivers 2 × 25 W at 6 Ω and features a 5-band graphic equalizer, Super Bass, and inputs for Phono, CD, Tape, DAT, and microphone.
The RS-CH7 is an Auto Reverse double cassette deck compatible with Normal, CrO₂, and Metal tapes, featuring Dolby B/C noise reduction.
This is one of the more interesting components of the set. Specifications
Double Cassette
Auto Reverse
4-track / 2-channel stereo
Speed: 4.8 cm/s
Compatible with Normal / CrO₂ / Metal
Dolby B + C NR
2 DC servo motors
Permalloy playback head
Permalloy record/playback head
Ferrite erase head
Wow & flutter: 0.1% WRMS
Frequency response (Metal): 30 Hz–17 kHz
CrO₂: 30 Hz–16 kHz
Normal: 30 Hz–16 kHz
S/N ratio with Dolby C: 74 dB
FF/REW (C-60): approx. 110 seconds
Power consumption: 16 W
Dimensions: 215 × 110 × 297 mm
Weight: 2.6 kg.
The ST-CH7L is an FM/MW/LW tuner with digital tuning.
Specifications
FM: 87.5–108 MHz
MW: 522–1611 kHz
LW: 144–288 kHz
FM sensitivity: 1.5 μV
FM S/N ratio: 58 dB
FM distortion: 0.3%
Selectivity: 50 dB
FM frequency response: 20 Hz–15 kHz
Dimensions: 215 × 55 × 295 mm
Weight: 1.4 kg.
The SB-HD301 speakers are Technics 2-way bass-reflex models, 6 Ω, 60 W Music / 30 W DIN. Speaker specifications:
2-way
Bass-reflex
Woofer: 12 cm cone
Tweeter: 6 cm cone
Impedance: 6 Ω
Music power: 60 W
DIN power: 30 W
Sensitivity: 85 dB/W/1 m
Crossover: 5 kHz
Frequency response:
45 Hz–30 kHz (-16 dB)
55 Hz–26 kHz (-10 dB)
Dimensions: 190 × 297 × 216 mm
Weight: approx. 3 kg/unit.
Electronics era: approx. 1991–1992
Speakers: approx. 1999
Total weight: approx. 14.3 kg
Remote control: compatible/original for the system.
Details
Era
1900-2000
Brand
Technics
Model
SU-CH7 / 4-Piece Midi
Multiple models
Yes
Physical condition
Very good
Number of objects
4
Includes
Power cord, Remote control
Serial number
FP1L627838
Year of manufacturing
1992
Weight
16 kg
Functional condition
Tested and working/playable
