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What you don't seem to get is the fact that many of those things are commodity items these days. Bryston doesn't pay 20-40 times more than Behringer for bridge rectifiers, filter caps, circuit boards, or output transistors in like-rated power amps.

Let's be clear about this:

Bryston 14B-SST2 $9.550

Power Output: 600 watts per channel into 8 ohms; 900 watts per channel into 4 ohms No 2 ohm rating.

Behringer EP4000 $349

8 Ω per channel 550 W

4 Ω per channel 950 W

2 Ω per channel 1250 W

$9,550 / $349 = 27.4

So here's the question - can anybody do a DBT where they sound different a statistically significant number of times? Does anybody seriously think that anything but the Bryston front panel costs 27.4 times more as it comes onto the factory assembly area?

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Wall voltage, current can kill performence

Wall voltage, current can kill performence

So goes the pitch for power conditioners, which are for 99% of all audiophiles, just another waste of money. A good power amp has a good enough power supply that it is largely independent of what comes out of the wall plate. Some modern amps will meet spec with any line voltage from 90 to 250.