Originally Posted by myriadcorp
I just purchased an Onkyo 818 receiver and wanted to know if the internal amp is equal to my old Marantz MM9000. The Marantz is 150x5 and I have a 5.1 setup. I think the Onkyo is 135x7. Is it worth using my old amp with this instead of the internal? Thanks.
On amplifier ratings...
The Onkyo 818 is NOT a 135watt x 7 amp. It's a 135watt x 2 amp, into 6ohms, at .7% THD.
The Marantz is a 150watt x 5 amp, into 8ohms, at .05% THD.
Apples to apples, in a 8ohm load the numbers would look more like...
Onkyo 80wpc x 5 acd
Marantz 150wpc x 5 acd
There's no doubt the Martanz is a much more robust amp.
The questions truly are:
Will you miss the extra power?
What amp sound would you prefer?
If you didn't need the Marantz, what would you do with it?