AUDIOPHONICS MPA-S250NC Amp Review

[gorman]

and I’ll also look into the Fletcher–Munson curves.

TLDR on this (but I urge you to read about it), at lower listening volumes you need a lot more bass and some more highs to perceive the right "tonal balance". That's a byproduct of how our hearing works.

 

[Rja4000]

I’m going to read up on the Fletcher–Munson effect and on the room correction software built into my Marantz Cinema 60 A/V receiver to see if I can solve the issue.

You may also start with some basic "health" checks:
1. Make sure your main stereo speakers are in phase (easier if you have red/black speaker cables)
2. Is the issue present when you only use the main stereo speakers ?
Or is it worse when you add more speakers ? Which ones ?
Again, playing with rear speakers phase may be a first step.
Center speaker should be in phase with main speakers.
But anyway, you room control software should help with that too...

You may also want some specific help on configuring it.
That's why a separate thread seems sounder to me...
Choosing your title carefully, people more knowledgeable of this system will probably be able to help.

Ah, and you'll need a measurement mic as well. But that's way cheaper than a new amp

Thank you very much for your help.

You're welcome.

 

[Acerun]

Revel F226be speakers get very high marks for low volume dynamics. Check out Erin's review. Just throwing it out there

 

[innerhippy]

Given the MPA-S250NC is a few years old now, is this still a product worth considering or has the world of class D amps moved on? I'm torn between the 3e A7 stereo and the MPA-S250NC. Maybe I should also consider the AP300-S250NC (though it's out of stock)?
My source is a Wiim Ultra, speakers are IPL Acoustics transmission line.

 

[rolfrander]

Given the MPA-S250NC is a few years old now, is this still a product worth considering or has the world of class D amps moved on? I'm torn between the 3e A7 stereo and the MPA-S250NC. Maybe I should also consider the AP300-S250NC (though it's out of stock)?
My source is a Wiim Ultra, speakers are IPL Acoustics transmission line.

The state-of-the-art is continually improving (albeit in smaller increments). However, for practical purposes, all the amps in the blue section of the graph, which has enough power for your use-case, will be good enough.

So "the world of class D" is moving on all the time, but unless you (like many) have an affinity for having "the best of the best", it doesn't really matter.