Yamaha A-400

[UncleDave]

I have just won a YAMAHA A-400 amplifier on ebay but I cannot find very much information on this model. Does anyone know something about this? years built, power rating, etc?
Thanks,
Dave

 

[fiddlefye]

I have just won a YAMAHA A-400 amplifier on ebay but I cannot find very much information on this model. Does anyone know something about this? years built, power rating, etc?
Thanks,
Dave

I'm wondering if it is a CA-400? The references I've seen to an A-400 seem to be all European, so I'm wondering if it wasn't their designation for what was sold as the CA-400 in N. America? If so, the dates were about 1974-76. I had one and it was about 25 w/ch and really very nice.

 

[Saint Johnny]

I'm wondering if it is a CA-400? The references I've seen to an A-400 seem to be all European, so I'm wondering if it wasn't their designation for what was sold as the CA-400 in N. America? If so, the dates were about 1974-76. I had one and it was about 25 w/ch and really very nice.

A-400: 1984-85
40wpc

Or it could be, an
AX-400:
1987-55wpc.

 

[pmsummer]

 

[fiddlefye]

A-400: 1984-85
40wpc

Or it could be, an
AX-400:
1987-55wpc.

Ah, whole different species I see. I don't know Yamahas of that era very well at all. At 40 w/ch it is a bit more than the old CA-400.

 

[UncleDave]

Thanks to all for your replies. I have located a service manual on-line that should help as well.

 

[the-real-mandak]

A-400: 1984-85
40wpc

Yes and:
40W@8ohm 0.03% THD
Dynamic 73W@8ohm - 120W@4ohm
Kirr 20-20.000Hz
Phono to rec. 0.007% (3V)
Fequenzy response AUX/TAPE/TUNER 20-20.000Hz
Speaker out @8ohm +0 -0,2dB
Inputsensitivity /impendanse
Phono MM 2,5mV 47kOhm
Phono MC 150uV 100Ohm
S/N (IFH A) Phono MM/Phono MC 86dB/70dB
Dimensions WxHxD 435x92x293 mm.
Wight 5,3kg.