favorite
favorite
hide
unhide
flag

Posted

print

Denon PMA-501 integrated amplifier with phono - $500 (salinas)

Denon PMA-501 integrated amplifier with phono 1 thumbnailDenon PMA-501 integrated amplifier with phono 2 thumbnailDenon PMA-501 integrated amplifier with phono 3 thumbnailDenon PMA-501 integrated amplifier with phono 4 thumbnailDenon PMA-501 integrated amplifier with phono 5 thumbnailDenon PMA-501 integrated amplifier with phono 6 thumbnail
Up for sale is a Denon PMA-501 integrated amplifier.
Face plate is extremely clean.
Tested and all features in excellent working condition.
Original manuals included.

Impressive switchknob silver stack from Denon's glory days, with a twist : PCC.

Ahh - PCC means Phono Crosstalk Canceller, something which was fairly shortlived (by Denon) but which resurfaced here and there throughout the 1980s and mostly by Marantz in the early 1990s with the SX-72 "scratch remover" unit and Philips with the IS5022 studio toolbox.

Denon's PCC wasn't using a Philips TDA as it was, naturally, all analogue.
So here are two wide-bandwidth phase shifting circuits that track cracks and pops on each stereo channel, reverse phase when necessary then matrix the two different signals (per stereo channel) to cancel the pops out of the music signal. In theory :)

This works by adjusting pops sensitivity separately for L to R signal and R to L signal - countless hours of tweaking ahead !
Denon even went as far as making a dedicated PCC-1000 unit (an extra-rare rarity) but PCC vanished rather quickly : by late 1978, it was unheard of in the Denon lineups...

The 501 has two transformers (two on the 501), four 6,800µF capacitors on the 501, and silver anodized heatsinks.
Full DC differential amplifiers, three-stage tone controls, three-step muting and two loudspeaker pairs' outputs.

post id: 7758213218

posted:

updated:

best of [?]

loading
reading
writing
saving
searching