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In Reply to: RE: BD player 7.1 analog out...mac mini posted by cfraser on November 22, 2009 at 10:06:30
Yes re the scope etc.; that is in fact how the initial test in the SM I mentioned is outlined. They suggest a 0dB input (~0.775V IIRC)and hooking the scope on the speaker outputs (no speakers), volume at -25 to -40 typical.
Do you have that section of the SM?
I assume the typical sweep method, 8ohm R across the speaker outs.
Crank up the sig. gen to 1KHz. and one should get the same 1KHz/ 0.775V or -3db out?
Or, would that be at the Pre-outs?
BTW, I've not used the internal amps in years. fronts get tubes.
Rears and center get the Rotel RB930ax, highly modified by, yours truly and kicks ass over the internal amps.
I've thought about upgrdes to the HK 520, PS caps and Schottky's but they appear to a royal PITFA to gain access.
Follow Ups:
They don't mention output levels nor input frequency, 1kHz sounds good. Yes you can measure at preamp outputs (though this is the 520 manual, this section seems written for some models that may not have pre outs) instead of (unloaded) speaker outputs.
These manuals used to be on the HK site. Maybe look around elsewhere. I downloaded this one years ago when you were thinking of getting the 520...it's not like I have one. LOL. Now I have no way to get it to you because I can't email such large docs anymore.
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