Amp experience

I bought an OHM 5000 in 2012 and had a Bryston 4bsst 300 watt. The sound was less dynamic than I was accustomed to hearing. I went up to a 14bsst 600 watt and it was like taking a v6 out of a Cadillac and putting a v12 in. Varoom!. Dynamic slam, headroom and bass impact came back and beyond. The speaker came alive.

@kfz03110:  After rereading your original post, I realize what you are really asking about is the crest factor of music.   Crest factor is a term used in physics to define the maximum ratio of RMS voltage to peak voltage.  For example, for a pure sine wave the crest factor is the square root of 2 or 1.414.   If you have a sine wave, the peak will never be higher than that.  

For music, the crest factor is around 20 for uncompressed recordings.  So if you had music that typically ran 2.83 Volts RMS, then the max should be around 56.6 V peak.   With an 8 Ohm speaker, that works out to 1 Watt RMS and 400 Watts peak. 

Now, that being said, if the composer added other things into the music, such as uncompressed gunshots, the crest factor would rise to 30 or more.  Cannons, 1812 Overture for example, then the crest factor is obviously greater than 30. 

It isn't just brute force, as I mentioned earlier.  That amplifier has to be very linear in its transition from 1W to 400W and it should, obviously, be very musical at the same time. 

You can read a bit more about crest factor here (scroll down to crest factor): http://www.aes.org/par/c/#cps

Thanks all for your inputs. Currently using a Mcintosh MAC 7200( 200W flat to 8,4,2 ohms SS) with JBL 4367(horn tweeter,15"woofer rated 94db). Don't know if it's the Mcintosh BRAND or lack of POWER??.  the sound is on the soft side. Highs are not clear nor quick enough. Bass is good but not hard hitting, lack of "burst out " energy . Plus side is sounded warm and can listen hours without fatigue. Over all satisfaction rate is 8/10. Like to upgrade amp. Some say if i double the amp power , the system will sound much better even in lower volumes!?
Others say it 's the Brand. Suggest I should try something like Mark levinson 585( 200W to 8 ohms 350W to 4 ohms SS) or Pass INT250 (250W to 8 ohms, 500W to 4 ohms SS)