Optonica SM-4545
Data
General
- Manufacturer: Sharp Optonica
- Model: SM-4545 (US version of the Optonica SM-4000 II)
- Type: Integrated amplifier
- Years of manufacture: 1975 - 1979
- Color: Silver
- Remote control: No
- Power consumption: 360 watts
- Dimensions: 442 x 144 x 380 mm (WxHxD)
- Weight: 16 kg
- Original price approx.: 115'000 Yen (Japan, 1975), 1'650 DM
Connections
- Number of inputs:
- Phono 1, 2: 2.5 mV, 47 kOhm.
- Tuner; 150 mV, 47 kOhm
- 2x AUX: 150 mV, 47 kOhm
2x Tape: 150 mV, 47 kOhm
- Main In: 500 mV, 100 kOhm
- Number of outputs:
- Tape Rec (Cinch): 150 mV
- Tape Rec (DIN): 30 mV
- Pre Out: 1 V
- 2 speaker pairs (4 - 16 Ohm)
Technical Data
- Continuous power (at distortion factor)
- 8 Ohm: 2x 70 W
- 4 Ohm:
- Dynamic power
- 8 Ohm:
- 4 Ohm:
- Total harmonic distortion: 0.05 %
- Attenuation factor: 5 - 40'000 Hz (± 1dB)
- Signal-to-noise ratio:
- Phono: > 65 dB
- High level: > 85 dB
- Tone control:
- Bass: ± 10 dB (100 Hz, 2 dB steps).
Treble: ± 10 dB (10 kHz, 2 dB steps)
- Loudness: yes, +11.5 dB (100 Hz), +6.5 dB (10 kHz)
- High Filter: -3 dB (6 kHz, 12 dB/oct.)
- Low Filter (subsonic): -3.5 dB (60 Hz, 12 dB/oct.)
- Mute: yes, -20 dB
Special Features
- Pre- and power amplifier can be separated
Remarks
- Other models in the same series:
- Amplifier:
- Sharp SM 1400 H
- Optonica SM-3000
- Optonica SM-4000
- Optonica SM-4000 II
- Optonica SM-4545
Pictures
- Image: Optonica SM-4545
- Excerpt from US advertisement: Optonica SM-4545, ST-3535
