Technics SU-7300

Data

General

• Manufacturer: Technics
• Model: SU-7300
• Type: Stereo integrated amplifier
• Years of manufacture: 1977 - 1979
• Made in: Osaka, Japan
• Color: silver, wooden cabinet black, as SU-7300K in Technics Brown
• Remote control: no
• Power consumption: 400 watts
• Dimensions: 410 x 139 x 334 mm (WxHxD)
• Weight: 8,9 kg
• Original price approx.: 750 DM

Connections

• Number of inputs:
  • Phono (MM): Yes, RCA jacks with ground cable screw terminal.
  • Radio: Yes, Cinch sockets
  • 2x Tape: Yes, Cinch sockets, Tape 1 additionally with a 5-pin DIN socket
• Number of outputs:
  • 2x Tape: Yes, RCA jacks, Tape 1 additionally with the above mentioned DIN jack.
  • Headphones (6.3mm jack)
  • 2 speaker pairs (4 - 16 Ohm) with a total of 8 screw terminals

Technical Data

• Continuous power (at distortion factor)
  • 8 Ohm: 2x41 W (0.08%)
  • 4 Ohm: 2x48 W (0.08%)
• Dynamic power
  • 8 Ohm: 2x43 W
  • 4 Ohm: 2x55 W
• Harmonic distortion:

Rated power at 1 kHz, 4 ohms : 0.08%.

Rated power at 40 Hz:16 kHz, 4 Ohm : 0.08%

-26 dB output power 1 kHz, 4 Ohm : 0.1%

50 mW output power 1 kHz, 4 ohms : 0.15%

• Intermodulation distortion:

rated power at 250 Hz : 8 kHz = 4:1, 4 ohms : 0.08%.

• Damping factor : 20 (4 Ohm), 40 (8 Ohm)
• Frequency response: Phono RIAA standard curve +-0.3 dB

Tuner: 7 Hz-80 kHz, - 0 dB, -3 dB

20 Hz-20 kHz, +/- 0.5 dB

• External voltage spacing:

Rated phono 63dB

Tuner 83dB

-26dB Output power phono 55 dB

Tuner 58 dB

50mW Output power phono/tuner 53 dB

• Stereo channel separation: 50dB
• Channel deviation: +/- 1.5dB
• Tone control:
  • Bass: Yes; 50 Hz, +12dB ... -12dB
  • Treble: Yes; 20kHz, +12dB ... -12dB

Loudness: Yes; (volume - 30dB) 100 Hz, +8dB

• High Filter: Yes; 8kHz, -6dB/oct.
• Low Filter (Subsonic): No
• Mute: No
• Direct/Line-Straight: No
• Headphone level and output impedance: 350mV/330 Ohm

Special Features

• 2 VU meters, illuminated

Remarks

• Other models of the same series:
• Amplifier Technics SU-7700
• Matching cassette deck: Technics RS-615 US
• Matching tuner: Technics ST-7300
• Matching tape machines:
  • Technics RS-1500 US
  • Technics RS-1506 US
  • Technics RS-1700

Pictures

• Pictures: Technics SU-7300 K

• Excerpt from brochure: Technics SU-7300

Links

• promotional brochure in English pdf file
• user manual