amp's. Rule of thumb,, Higher the wattage output, lower the distortion. And if your running easy driven speakers [8 ohm ]
It might not be noticeable, until you wind up the volume, till your ears bleed But try hooking up some 4 ohm, or if you want to
convert it to a a smoke machine, try a 2 ohm load. or a pair of electrostatic's.
Thanks for your input but I have to say this looks like a troll post....
Since I have come this far I will play.
The amp is no where near clipping and isn't producing louder sound levels than achieveable with a 100W amp which was well under its maximum possible power. The sound levels should not have been stressing the amp shouldn't have been close and would be easily repoduceable with a 40-60W amp.
As you wont believe this my wife and I don't see a lot of movies in the cinemas as she thinks they are way too loud and often has to cover her ears she had no issues with the sound levels used for testing.
the power supplies are just not up to the job, And lets face it, your not going to get quality, at the price there selling there
mass-produced products for. And the way there selling, Mass'productions costs are more then likely somewhere between $20 and
$50 per unit.
The UPA-5 has an underrated power supply, the XPA-5 has from the specs and full rated power supply using a 1200VA Tx.
As to the price $20 -$50 per unit not sure what your point or reference is too. $20-$50 cost per XPA-5 or $20-$50 per channel.
We currently produce a audio amp not used to drive a speaker but to produce a high quality sinewave into a 2ohm load of a variety of frequencies. In bulk manufacture the cost of the power stage excluding power supply and preamp is just under $40 (including a small heatsink not rated for continuous operation) for a single channel. As per my other post the costs in an amp are the power supply case and heatsink, the power stage is one of the cheapest components. Hence why there is no reason emotiva couldn't improve there amp and produce audiophile sound quality for a very similar price.
PS high power amp using a high rail voltage is harder to design to produce an inauidable noise floor and inauidable distortion whilst your general rule of thumb somewhat applies only if you are running at a lower % of rated output power you will be less likely to run into issues distortion by over stressing the amp.