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ABX with a cheap Pioneer receiver

The Audio Critic has a review of the Pioneer SX-203 (a long way down from the Elite) in Issue #24. It held up pretty well and would run 9 amps through a 1 ohm resistive load, but the power supply was obviously weak. It wouldn't pass the FTC 4-ohm rating test. I imagine it would melt down. David Rich found it to have no sonic signature within its power limits. No dynamic distortion. It did run out of gas on the low end;at 20Hz and 1% distortion it wouldn't put more than 70 watts into an 8 ohm load. No mention of damping factor. The SMR Home Theater guys consider the cheap Pioneers as disposable appliances. It'll be fried within two years, throw it away and buy another.

They also did an ABX test with a Pioneer SX-205 against a high-end amp and couldn't tell the difference reliably. Aczel said, "To me the outcome was predictable, but the test had to be performed because until then we had never ABX-ed really cheap electronics against the multi-kilobuck high-end stuff. Sound taps for the tweako belief system..."


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