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Need help choosing a class D amplifier

Bghead8che

Member
Joined
Jul 1, 2019
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Hi guys. I'm new to the world of class d amplifiers. I need a three channel amplifier for my speakers.

My system:

Monoprice HTP-1
Philharmonic BMR towers

I am looking at the following amplifiers:

Audiophonics HPA-400ET

Nord Three 1ET400A 3 Channel Amplifier

Nord Three 1ET400A MKII 3 Channel Amplifier

The Nord MKII is roughly $700 more than the standard Nord. My understanding is the difference is the MKII allows you to choose an op amp and according to Nord "the board in a true triple Mono design incorporated in a single case. Same sound quality as the Mono Blocks."

I'm not sure if it's worth the extra $700 or not. I don't believe in op amp sounds myself, so I'd be paying more for three mono blocks in a case upgrade.

Which would you guys buy of the three? I assume the 1ET400A amplifier would be more than enough to drive the BMR towers. Thanks for any and all feedback!
 

Count Arthur

Major Contributor
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Jan 10, 2020
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Of the three you selected, I'd go for the Nord Three: https://www.nordacoustics.co.uk/product-page/nord-three-1et400a-stereo-amplifier

The Audiophonics shares a single PSU between the three amplifier modules, whether that effects real world performance I couldn't say, but the Nord at a similar price with three PSUs, looks like better value.

Of the two Nords, I don't think the fancy descrete component op-amps provide any performance advantage over the IC type and the OPA1612 is well regarded.
 
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