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Re: So Benchmark has lied to me?

Posted by John Siau (M) on January 24, 2006 at 14:02:28

In Reply to: So Benchmark has lied to me? posted by gdg on January 23, 2006 at 21:18:03:

The DAC1 front panel pot and the rear panel trim pots use identical but fully independent signal paths. These two signal paths are selected with the DPDT switch located on the rear panel.

In either mode of operation, there are exactly the same number of components in the signal path, and the component values are identical (with one small exception). The only difference is that the front panel pot can be set full off, while the range of the rear panel pots are limited to a 20 dB control range.

The output buffers follow the DPDT switch, and are not altered by the position of the switch.

Also, we have never been able to measure any differences between the two modes of operation. I can assure you that we can measure some signal degredation through even the best external preamps. An external preamp adds many devices to the signal path, the variable mode on the DAC1 does not. I am inclined to favor the simpler path.

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