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Author Topic: Treble Bypass Mod  (Read 3846 times)

Fixxxer_1988

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Treble Bypass Mod
« on: May 28, 2012, 10:13:25 AM »
Does anyone have any experience with fitting a treble by pass mod into a guitar? I have PRS which was fitted with one when it was stock but that was so long ago I don't remember if it was really that different. I was thinking of fitting a 180pf accross the in and out of the volume.

Please share any other values recommendation or different ways of going about the mod.

I am fittig a black dog in the bridge and a mule in the neck of it make any difference.

Cheers guys
PRS Custom 22 with Black Dog Set
Fulltone Clyde Wah
Cornford Roadhouse 30

Pete24v

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Re: Treble Bypass Mod
« Reply #1 on: May 28, 2012, 10:32:36 AM »
If your a volume all the way up all night player then it's not much use.

i use these on all my guitars http://www.ebay.co.uk/itm/TREBLE-BLEED-SILVER-MICA-0-001uF-150k-1-RESISTOR-/200758865688?pt=UK_Guitar_Accessories&hash=item2ebe292f18

My volume is always 5-8 and then 10 when i need a little push.

Fixxxer_1988

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Re: Treble Bypass Mod
« Reply #2 on: May 28, 2012, 12:54:45 PM »
I use the volume control to control my whole sound, from cleans to crunch to full on leads. I set and forget the amp and never use footswitches. it is pretty old fashioned but it works for me. Just wanted something that will let me have the same/similar EQ from 1 on the volume to 10. I have a tone to control the darkness I don't want the volume to do the same!
PRS Custom 22 with Black Dog Set
Fulltone Clyde Wah
Cornford Roadhouse 30

gwEm

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Re: Treble Bypass Mod
« Reply #3 on: May 28, 2012, 01:08:37 PM »
I'm slowly converting all my guitars to use '50s' spec wiring and decent capacitors. I find this avoids the needs for a treble bypass capacitor.
Quote from: AndyR
you wouldn't use the meat knife on crusty bread but, equally, the serrated knife and straight edge knife aren't going to go through raw meat as quickly

Fixxxer_1988

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Re: Treble Bypass Mod
« Reply #4 on: May 28, 2012, 01:12:59 PM »
I'm slowly converting all my guitars to use '50s' spec wiring and decent capacitors. I find this avoids the needs for a treble bypass capacitor.

What does the 50s spec entail?
PRS Custom 22 with Black Dog Set
Fulltone Clyde Wah
Cornford Roadhouse 30

gwEm

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Re: Treble Bypass Mod
« Reply #5 on: May 28, 2012, 01:21:47 PM »
I'm slowly converting all my guitars to use '50s' spec wiring and decent capacitors. I find this avoids the needs for a treble bypass capacitor.

What does the 50s spec entail?

its just moving some wires around. works a treat. loads about it online:

http://ashbass.com/AshBassGuitar/Gibson50s.html

for example
Quote from: AndyR
you wouldn't use the meat knife on crusty bread but, equally, the serrated knife and straight edge knife aren't going to go through raw meat as quickly

Fixxxer_1988

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Re: Treble Bypass Mod
« Reply #6 on: May 28, 2012, 05:27:06 PM »
Awesome, thanks for the link. I think I will get on and do this, this week :)
PRS Custom 22 with Black Dog Set
Fulltone Clyde Wah
Cornford Roadhouse 30

Miracle Man

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Re: Treble Bypass Mod
« Reply #7 on: May 28, 2012, 05:41:10 PM »
180pf is the original PRS value. I've tried 50s wiring, 50pf to 1000pf and almost everything in between. In the end I installed BKP/CTS 550k pots with regular (not 50s) wiring and I love it. There is some treble loss but it sounds really sweet without getting muddy. I highly recomend it.

The next best thing (IMHO) is regular wiring with a Suhr-style bypass: 150k/680pf in parallel. You get a different taper that way, much more linear but the clarity is great without losing brightness. If you really want a "guitar mounted gain control" this is the way to go.

HTH AMPS

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Re: Treble Bypass Mod
« Reply #8 on: May 31, 2012, 11:41:22 PM »
I used 50s wiring on all my guitars for years, but have gradually went back to modern Gibson wiring with 180pF bright caps, it just sounds meatier.