Yamaha A-720
Data[edit]
General
- Manufacturer: Yamaha
- Model: A-720
- Type: Integrated amplifier
- Years of manufacture: 1985 - 1986
- Remote control: No
- Power consumption: 470 watts (EU)
- Dimensions: 435 x 147 x 399 mm (WxHxD)
- Weight: 10,2 kg
- Color: silver and black
- Original price approx.: 1'000 DM
Connections
- Number of inputs:
- Phono MM/MC, Tuner, 2x Tape, Aux, CD
- Number of outputs:
- 3x Speaker, 2x Rec-Out, Headphone
Technical Data
- Continuous power (at distortion factor)
- 8 Ohm: 2x 105 Watt (0,005%)
- 4 Ohm: 2x 150 Watt (1%)
- Dynamic power
- 8 Ohm: 2x 145 Watt
- 6 Ohm: 2x 180 Watt
- 4 Ohm: 2x 240 Watt
- Total harmonic distortion: 0,005%
- Attenuation factor: 45
- Input (sensitivity/impedance)
- Phono MM 2.5 mV /47 kOhm
- Phono MC 160 µV /220 Ohm
- CD, Aux, Tape, Tuner 150 mV /47 kOhm
- Output (level/impedance)
- Rec-Out 150 mV /470 Ohm
- Tone control:
- Bass: +/- 10dB (20Hz), peak frequency 350 Hz.
treble: +/- 10 dB (20Hz), peak frequency 3500 Hz
- Loudness: adjustable, -40 dB
- Subsonic: switchable, -12dB below 15Hz
- Mute: Yes, -20 dB
- Direct/Line-Straight: tone control can be switched off
- Ripple (short-circuited):
- Stereo channel separation: 65 dB
- Signal-to-noise ratio: AUX/Tape/Tuner: 106 dB, Phono MM 92 dB, Phone MC 76dB
Special Features
- Record Selector
- Mono/Stereo switchable
- Auto-Class A/AB switchable
- Loudspeaker pairs individually controllable
Notes[edit]
- Other models in the same series:
- Yamaha A-320
- Yamaha A-420
- Yamaha A-520
- Yamaha A-720
- Yamaha A-1020
- [[Previous model:
- Yamaha A-700
- Successor model:
- Yamaha AX-700
Pictures[edit]
Reports[edit]
- Report in "FonoForum" 3 / 1986
- Very powerful amplifier with a beautiful appearance. Even after more than 20 years it is still a real powerhouse, but of course, like most old amplifiers, it has problems with the pots. It should be mentioned that all controls are made of aluminium.