Adjusting Gain

booangler · 12728

0 Members and 2 Guests are viewing this topic.

Offline booangler

  • Full Member
  • ***
    • Posts: 76
  • My first love! Not Me... Fishing!!!
on: October 23, 2009, 07:54:03 AM
Hi all,

Last night my wife had all of our ears bleeding. She finished playing a LP and then switched immediately to the CD player, by simply changing the switch on the Quickie. Is there some change I can make to balance the line level inputs so that we do not suffer this gory event again.



The joy of music should never be interrupted by a commercial - Leonard Bernstein

Denon POA | PJCCS Quickie | Hagerman Bugle | SOTA Sapphire w/ Grado Gold | B&W 602

Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19452
Reply #1 on: October 23, 2009, 08:58:24 PM
You can add some series resistance between the center pins of that louder pair of RCA inputs and the selector switch.  That will be a pad in series with the 100k pot.  I tend to do this by experimentation, and I would recommend trying resistors in multiples of 75k.  (75k, 150k, 225k, etc.)  All you have to do is remove the jumpers from the center pin of the RCA jacks to the selector switch and replace the wire with the appropriate resistors.  If they need to be longer, you can use a little buss wire or stripped Teflon wire to extend the leads a bit.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man