I did not know the LS-11 would put out 10 volts...
And I never ran a crosstalk sweep, just at 1khz. I did not realize crosstalk changed that much with frequency.
Ya do nice work Kevin. I do apologize about the knobs and faceplate. I run that unit before washing my hands after coming in from the field sometimes.
Oh yeah 10+ volts out pretty easily.
It is pretty common to see 6dB or more per octave increase in the crosstalk numbers.
Here's what the Audio Critic had to say about crosstalk in their design review and measurements of the Acurus L10, "
Careful use of ground planes prevents crosstalk between channels and unselected inputs. This care was reflected in the superb measured crosstalk. Even in the less good channel it stayed below -90 dB up to 1 kHz and then rose at a 6 dB per octave rate to -71 dB at 20 kHz. For comparison, identical mea-surements made by Stereophile on preamps costing up to an order of magnitude more than the L10 are not this good at 20 kHz. For example, Stereophile measured a separation figure of -46 dB at 20 kHz on the $2000.00 Krell KSL, and the $4500.00 Krell KBL measured -60 dB at the same fre-quency."
No problem on the cleanliness of the unit and yours was far from the worst I've received. It only took about 10 min in hot soapy water to wipe those knobs clean. The worst pre's I get are those that have seen use by a heavy smoker. I've had a few come in with knobs that had yellowed cigarette tar/smoke imbedded in the outer rim of the volume & power knobs. Thats some tough stuff to get out and it never really fully comes out, hot soapy water doesn't touch it and even after soaking the knobs in acetone they still show yellowing from the smoke and tar. But I always try to clean them back up becuase it only takes a few minutes once its already apart and the pre looks so much better after reassembly.
