Is too much power in an amp really a problem?


As recently as 8-10 yrs. ago, I maintained my card carrying residence in the ‘lots o’ watts’ camp’ regularly. I’ve since held only a casual attendance to that group, and since departed with the acquisition of higher eff speakers, and lower powered tube amps.

Now I’m debating the future and appropriateness, of that perception and considering another SS, or a non tube amp. This time a digital amp… such as a class D or ICE configuration… as in a Bel Canto, PS Audio, Spectron, Wyred 4 S, etc., to use for both music and HT with my current Silverline speakers.

Several of these amps profess IMO rather high ratings for output power. 250, 300, and 500 wpc into 8 ohms, as your ‘oh by the way’ choices, and then doubling up should the impedance drop off to 4 ohms!

1000 wats per!

E frekin' Gad!

Truth be told, I’ve never put together a high eff speaker & high powered amp combo, nor felt the need, so I’m in a whole new ball game now, or am I?

I understand immense power reservoirs on tap, (like with my former BAT vk500) is a good thing, as well as are other attributes like a good input impedance, and control or damping figures. that amp ran VR4 JRs though, and both have since departed la casa Sunburn.

Additionally, my current tube mono blocks (120wpc) handle my 93db Sonata IIIs quite well IMO. My Odyssey Stratos SE also does a good enough job too rated at about 160 wpc. Between the two amps, the Dodds are the better sounding, and appear to have better control and more ease with the Silverliness.

In making a choice on one of these Digital or ICE amps, should the power numbers be regarded as something other than what they are? I mean more likely, do 250 wpc into 8 ohm rated ICE amps provide likewise results or the same feel, of an SS amp having the same output? Ie., control, power reserves, etc?

I do feel a good match between the speakers and amp is a prime consideration now, and do not wish to buy far too much or too little an amp, given these thoughts.

There too is the thought of the amps actual 'voice' itself to consider.

I sure wouldn’t want to smoke the speaks with too little or too much power on tap. Or have the amp ()s) always loafing. Or is that loafing bit just nonsense?

Any experiences and insights here on the digi power front is more than appreciated as I'm trying to get a 'feel' for this 'new to me' amp topology and not over or under buy.

Thanks much.
blindjim

Showing 3 responses by shadorne

I don't think you need a lot more power than you have. Are you hearing any distortion at typical high SPL levels and do you like to crank it often or do you play bass heavy stuff a lot?

Those are all nice high quality drivers in your speakers (the Sonata III's are excellent value for awesome sound, IMHO). they could certainly take more juice but the question is really more down to whether your ears demand it?

I could not find an impedance plot but an unusually low impedance or sharp drops might be the best indication that you might benefit from doubling or tripling your power. On a smooth impedance load at 93 db sensitivity my guess is you don't need more power.
Guido is our resident shill for Rowland.

See the posting history for verification.

My apology to Guido.

He is the resident co-shill.

Dcstep must be considered an equal if not bigger shill.

Perhaps it is time we cleaned up this website and eliminated all the product favoritism displayed by regulars on this website - especially that one guy who keeps favoring ATC ;-)
"Kijanki is right - an underpowered amp can clip when played loud, and clipping of an amplifier causes high-frequency harmonics that are routed to the tweeter by the crossover, possibly overloading it."

This is often what makes a system sound "perceptively" loud when in reality it isn't at all loud. When you have 15" subwoofers with 1000 watt amplifiers that can still clip then it is not hard to imagine that you can exceed any amplifiers requirements (no matter how big) if you go loud enough and deep enough in frequency.

Jaymark's example of a biamped speaker eliminates the problem - you still get crytsal clean highs even if you bass is clipping somewhat.

The issue is to determine whether your listening levels are high enough to often cause clipping distortion in some musical passages.