"Sander deWaal" wrote in message
...
(ScottW) said:
Might I suggest an ABX test? ;-)
I actually could. Maybe I'll make Art and Marc take it. I'm biased
and sighted.
That's a good thing, you will note.
They did come forward a bit. My ohm meter is busted - I think the
kid fried it (thats my story and I'm sticking to it.) Anyway, since
the resistors were in bad shape I had to replace 'em and Radio Shack
(being my only source on weekends) actually had 1 ohm 10W power
resistors in stock, 10%. So I rigged 1 into 2 in parallel to come up
with 1.5 . But my only other meter is a cheapo single decimal and it
keep flaking out reading anywhere from .5 to 2.2 ohms. I kind of felt
like they are probably coming in around the 1.2 or 1.3 range.
Also, the new caps 220 while there was 228 in the circuit. Anyway if
the resistors are low, could that open up the highs a bit much? Im
gonna borrow a meter from work and check em anyway.
I doubt if such little deviations could seriously cause the Quads to
screech. But then again, I'm not familiar with the Quad ESL63
schematics.
A better way to measure low value resistors would be a 4-wire method,
or creating a voltage divider with a higher value precision resistor
and measure the voltage over the resistor in test.
Tori Amos Little Earthquakes sounded great. Perhpas Im just dealing
with a player revealing some bad recordings.
That could well be the reason.
Paul Dormer noted that the Kate Bush recording was quite a bad one.
Scott, try a 10 kohm resistor in series with each channel at the CD
input of your amp.
What's the value of your passive pot? In general, I wouldn't advice to
go lower than 50 kOhm for a standard CD output load.
I don't know, its an Adcom SLC I picked up for nothing and I can't
find any specs.
Probably 10 kohm or so (intended for use with SS equipment).
yeah, thats what the manual says and thats what I got. I don't think thats
the problem.
Ok, I went and measured it since I have the meter. 12.3k
You still could try to put 10 or even 22 k resistors in series with
the CD output.
I dont see what good that will do. The KSA150 is 47k in so the min load is
9.7k, adding 20k to the Krell only brings it to 10.3k and reduces my max
levels by about 30%. Seems like a heavy penalty to increase input impedance
by 600 ohms.
Though any CD player's output is regared to be able to drive low
impedances, in some cases they can't do it just right.
A higher load value may bring back the good sound.
Hey Graham, Sander says Brits put cheesy output drivers in their CD's
ScottW