Marantz AV8805a Dolby Atmos Surround Sound preamplifier with MM8077 Power Amplifier

It's a terrible thing to have a high end single box surround receiver that becomes outdated due to changes in HDMI and audio codecs. Often that means discarding a perfectly good multichannel receiver because of changes to digital encoding practices. Turning what was five years ago your pride and joy into 15KGs of consumer electronic waste looking for a cosy grave in Northern Suburban landfill ...

Then you buy the replacement model from the same brand and you discover that while it ticks all the feature boxes with bluetooth, wi-fi, dlna. snaggle waggle ... unfortunately it dosn't sound as good with music and dynamic theatre as the model you've just discarded.

So the first reason you buy a Surround pre and Power combination like this one is to get off the aforesaid Hamster wheel of Built In Obsolescence and waste.

The second reason is that it sounds fantastic.

Home Theatre Review on the AV8805

Home Theatre Review on the MM8077

When you graduate to a pre and power amplifier like this you have the best of both worlds. The very sensitive low noise circuitry of the preamplifier and processor is separated from the high current demand of the power amplifier and is able to do its job of recovering all the residucal fine detail of the signal to the best possible degree.

Meanwhile the power amplifier can be unleashed from the sensitive circuits of the pre-amplifier where its mass of current can be detrimental. Liberated and with massive current reserves, the power amplifier is able to grip and modulate the reactive load of the loudspeakers with unmitigated force complying with the complex demands of the sinal produced at the preamplifier stage.