The AV-8 Audio/Video Receiver is one in a series of amplifiers with Harmonic Time Alignment (HTA™), manufactured in Malaysia by the Nakamichi Corporation.
The other amplifiers in the series consist of AV-7, and AV-10, which look very similar with similar build design, electronics, and remote control.
The AV-10 has 120 watts output capacity in stereo, and 100 watts per channel in surround sound mode, whilst the AV-7 and AV-8 provides 100 watts per channel in stereo and 80 watts per channel in surround mode.
The AV-10 has DTS, Dolby Digital, and Pro Logic capability, whilst the AV-8 has Dolby Digital and Pro Logic, and the AV-7 has Pro Logic only.
Even though the AV-8 does not have DTS, it is still a very desirable amplifier due to the unique HTA technology, and many audio enthusiasts and purists, prefer this amplifier in stereo mode for the best sound reproduction.
Certainly, if you already have a Nakamichi cassette deck, then the next step is to get one of their amplifiers for the ultimate in sound quality
reproduction.
According to the AV-8 service manual the dynamic power output per channel is 120 watts with 8 Ω loudspeakers, hence, with five channels, this amplifier is capable of providing a total of 600 watts of power.