Yamaha A-550 specifications

General

Connections

Technical data

Special equipment

Other models of the same series:

Successor model:

Have operated an A-550 myself for many years in the early eighties. It is a tonally inconspicuous mid-range amplifier with a usable phono input and a solid construction. I operated it on a pair of Onkyo SC-60 MK2 at that time. The main input signal was a Pioneer PL-5 16 with Shure M95HE. This combination has satisfied me sonically for many years, even at a higher volume. At that time, the P / L ratio was quite favorable. He is needed today but traded too high imho. I would not spend more than 100 € in perfect technical condition for this. Those who do not "believe" in amplifier sound will hardly need more than this or a similar model from another company.

Manufacturer: Yamaha
Model: A-550
Years of construction: 1979-1981
Type: Integrated Amplifier
Remote control: no
Power consumption: 260 Watts
Dimensions: 435 mm × 112 mm × 338 mm (W × H × D)
Weight: 7.8 kg
Color: silver and black
Factory price approx.: 598 DM

Number of inputs:
Phono, tuner, 2× tape

Number of outputs:
2× speakers, 2 × rec-out, headphones

Continuous power (with total harmonic distortion)
- 8 ohms: 2 × 53 watts
- 4 643961b8da111c0a15d770a1109a86d4s:
Dynamic power
- 8 643961b8da111c0a15d770a1109a86d4s:
- 4 643961b8da111c0a15d770a1109a86d4s:
Total harmonic distortion: 0.005 %
Damping factor: 50
Input (sensitivity/impedance)
- Phono 2.5mV/47 k643961b8da111c0a15d770a1109a86d4
- Tape, Tuner, 150 mV/47 k643961b8da111c0a15d770a1109a86d4
Output (level/impedance)
- Rec-Out 150 mV/600 643961b8da111c0a15d770a1109a86d4
Frequency Response: 4-70,000 Hz
Tone control:
- Bass: yes
- Treble: yes
Loudness: adjustable
Subsonic: fixed at phono
Mute: no
Direct/Line-Straight: no
Hum voltage distance (short-circuited):
Stereo channel separation:
Signal-to-noise ratio: 104 dB