What is your experience with amp power?


So I wanted to know what my fellow audiophiles feel about power.

I realize that some speakers are current hounds and need a prodigious amount of power or watts (lets say Maggies). But my question is for speakers that do not. Speakers that are easy to drive, or maybe just higher in efficiency and can be driven by a modest tube amp or even an adequate receiver. 

What is you experience with high power, high current amps ? Do your speakers sound better with more power? At low volumes, in a small or medium sized room? Do you think the quality of the music is dependent on higher powered amps?

2psyop

For 15 years I’ve been running Tannoys, between 91 - 96dB. I play loud. I like tubes. I don’t think I’ve gotten to the point yet where I have "too much" power. My most powerful amps, 250 Watts/ch and 300 Watts/ch tube monoblocks, have had distinct advantages in dynamics, bass, and "driver grip". Yes, even on the big 96dB / Watt Tannoys! I’ve gotten great sound with lower power amps, but there are clear advantages in the higher power levels that you won’t get until you get there. Headroom matters. My 300 Watt VAC Master monos in particular are just in another world of performance compared to all prior amps - the 200 Watts/ch 200iQ monos (really more like 140 Watts./ch into 8 ohms) aren’t even in the same zip code.

I think higher power also greatly lowers the risk of "problems", in my experience. With a vinyl source there can be a lot of feedback and LF energy to deal with, and you DON’T want to risk the amp clipping from that. It' always better to have the extra headroom. 

If you listen at "75 - 80dB peaks max" or whatever, then you can safely ignore my observations :)

If you want to play (loud), you have to pay. Big powerful expensive amps exist for a reason. They work in most applications and let you not worry about coming up short on power. And for some reason, unknown to me, big amps add power and weight even at low volumes, although I have no idea how that works. Better to have too much than too little. On the other hand my 25 watt Quicksilver Mini-Monos are my favorite amps? 

Power has nothing to do with sound quality.  If that were true, then anyone could make a high powered amplifier.  Comments about power and headroom are completely false.  Power has really nothing to do with headroom.  And higher power sounds better at low volume and high volume is another false statement.

@knotscott - is going in the right direction.  I have Vandersteen model Seven speakers 83db driven by 28wpc stereo amp that sounds better than the 220wpc amp and even the 100wpc amps we have.  In theory, no one I know would even think to use a 28wpc amp on the Sevens.  But so far it has outperformed the other amps by a significant margin.

Happy Listening   

 

@bigkidz 

have Vandersteen model Seven speakers 83db driven by 28wpc stereo amp that sounds better than the 220wpc amp and even the 100wpc amps we have

Actually I don’t find this particularly surprising. If this is a tube amplifier I suspect excellent transformers and power supply are largely responsible. I expect that most responses will be in favor of more power is preferable.

Charles

I will add another vote for quality over quantity. I was caught up in the whole more is better for over 5 years. I had amps up to 300 watts from the likes of Bryston and McIntosh. When I finally tried a lower powered tube amp I felt I had been had. I really think the sound of the amp is far more important that the watts. I think for most people and speakers that 30-40 watts is all that’s needed.