Is a Bryston 3B SST2 enough for Magnepan 3.7i or 20.7?

Most setups don’t use more than 25W, even using 100W is rare.

@maplegrovemusic

Please explain how a 200W amp has more bass than a 100W amp when only using 50W.

You can throw all the mathematical equations out to support a low power amp will drive a speaker the same as a larger amp does . If the speaker was 100 db efficient , then we can say that will work . Not going to happen with magnepan though .

Speaker efficiency is irrelevant. You stated more powerful amps have more bass than less power amps even at low listening levels. I stated that it’s impossible simply because that’s not how it works.

@maplegrovemusic  
 
That is wholefully false. 99% of solid state amps amplify linearly, doesn’t matter the volume. A 50W amp and a 500W are gonna have the same amount of bass if only using 10W (if everything else is similar).

@maplegrovemusic  
 

Your saying a ten watt amp is all that is needed for a Magnepan 3.7i 
 

I never said that, I was addressing your claim: 
 

your going to get bass at lower volumes with a bigger amp 

 Which is untrue, as I explained above. 
 
As for the 3.7i, it states: 
 

Sensitivity: 86dB/500Hz /2.83v
Impedance: 4 Ohm

Let’s just take that as 85dB across the whole spectrum.  
 
Let’s do some math with some assumptions: 
 
1) 85dB @2.83V anechoic
2) Room gain: about +2dB
3) 4 meter listening distance:  about -8dB 
 
If wanting to achieve 90dB peaks in this scenario (low level listening), one would need ~25W into 4ohm.

@maplegrovemusic

I feel you are not understanding at all what I’m saying. I’ll try to be more clear:

1) If you listen to music at soft levels, you aren’t using as many watts. This should be common sense.

2) If you aren’t using a lot of watts, you don’t need a lot of watts.

3) A SS 100W amp and a SS 200W amp will have the same amount of bass if outputting 100W or less (assuming all else is equal).

Your point of Maggie’s being one of the hardest to drive speakers has nothing to do with anything I’ve said regarding the rebuttal to your claim that a more power amp has more bass at low wattage than a less powerful amp. I’ve pressed you for an explanation for your claim, and you continually deny to give one.

@maplegrovemusic

So you aren’t gonna answer the question?

And no, I specifically stated that 25W was enough for low level listening (90dB peaks). If one wanted 100dB peaks, that’s 10x the wattage, so 250W.