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Small differences in FR in real world conditions, not bench tests, can make significant audible differences

Much of what is claimed as "superior sound" of some electronic components can often IMO be attributable to minor FR differences when the equipment is in actual use. Connecting amplifiers to real world loudspeaker loads for example can cause them to perform FR wise differently from the bench test and differently from each other. The ultimate defense from such changes of course from the amplifier designer's point of view is a very heavy duty well regulated power supply and an output stage with a very low impedence but that is not always necessary. Differences caused for example by an increasing power supply impedence with decreasing frequency can often be offset at least to a degree by equalizing to compensate. Linear (FR) distortion, especially in electronic components can often be corrected easily. Equalization is among the most powerful and universally used techniques by analog circuit designers for audio signal processing. LPs and analog tape recording couldn't exist without it.

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  • Small differences in FR in real world conditions, not bench tests, can make significant audible differences - Soundmind 04:09:07 05/31/06 (0)
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