I've had a few months. In very good condition, it has no lack of wear.
Year of manufacture = 1979
Power = 2 x 45 Watts (8 Ohm}
Having regard to needle-
= 6 Ohm impedance mini (just limit to connect 2 pairs of speakers}
Maximum input signal = 150 mV
Egualiseurs 2 strips = 11dB (50Hz) 8dB (10kHz)
loudness (which does not overdo it, but low enough}
subsonic filter (cut from 20 Hz}
Here are more details on a German site (?} Http://hifigoteborg.se/Hitachi% 20ha-330% 20spec.htm
Facade brushed metal, big volume pot solid, very well done. It is connected to the speakers apogee 3A (2 channels, highly efficient}. He feeds them perfectly. Good reception kicks and taking on big bass. I can not speak of the purity of sound, the speakers are missing too many medium .
I think this amp does well its big watts. Having put the lets you know when it is at its cruising speed}.
Perfect for a vintage amp quality and powerful, nothing against him (the weakness of the power from the data may be}