Marshall Tone Stack Mods May 12, 2012 · I’ve added the gain stage and so far the plexi sounds great at half gain but I’ve not changed the PPIMV to mst vol between tone stack and PI, Has anybody tried this (could only find references to other tone mods in other posts) - or have any guesses Sep 24, 2013 · Technically speaking, placing the MV before the tone stack ala jose, cameron, a bunch of other modders, screws up the impedance to the tone stack and makes the tone controls far less effective, Jan 28, 2018 · Try removing the 470pF cap across the treble channel’s 470k mixer resistor (I hate the effect of that cap ), I have discovered ways to make a 50 watt head head sound as big as a 100 watt, Aug 14, 2015 · I sometimes make these amplifiers into the typical ‘classic’ circuit seen in ‘Tweed’ Bassman and Marshall amplifiers, Some people associate the 56k/250pf with the “classic Marshall tone” as it was used by Eric Clapton on his early recordings, The Who when they first got their hands on Marshalls, and even Eddie Van Halen’s “magic Marshall” is said to have used this tone stack, ) Jun 23, 2022 · There's no specifics of what the Dookie mod actually is or how to do it, so all I know is it basically changed the amp circuit to a JCM800 by adding gain and modding the tone stack, At the least, replace the , A standard Fender tone stack uses 0, Way more versatile and still uses the super beefy Traynor o Jan 14, 2021 · Speaker Options for Marshall 5005 (Lead 12)after listening to this clip, the bottom end doesn't sound bad to me, Mar 11, 2012 · In regards to the tone stack, I was considering replacing some of the original pots with some dual gang pots, to allow for the reversal in direction associated with the tone mod, And just plain simple, which mods are good to give it a more metal sound like metallica? Thanks, AB763 Blackface Modifications The two main tone stacks used by Marshall over the years was first the 56k slope resistor and 250pf capacitor combination – this was used exclusively until 1968 on all their amps, lowered the V1A bypass cap to 5uF/25, So i thought that i'd draw up a simple addon board for simple Big Muff Pi tone control, so that anyone can take it after any board's output, Locate the 68K input resistor (R3) and place a 330pf 1kv ceramic cap across it, If you bypass it, your tone should sound a LOT better, Theres alot of good stuff there nice to have it all in one place instead of like I have it, Dec 23, 2024 · 6550 tubes, they also have extensive tone stack mods and pre-amp treble boost mods, Marshall Overdrive Mods I design Marshall mods to bring out the the best that the amplifier can deliver, The bottom amp has an SE lead mod, which adds a tube for more gain, It's the weak point, Paul designed a 2 channel hand wired preamp circuit with a Marshall 18 watt design for channel one and a TMB master volume Marshall tone stack design for channel 2, Jun 12, 2009 · The V18, after mods, has become one of my favorite amps, When I turn up extra gain stage past half way I get squeals and wah wah overloads the signal? Here's an excellent demo of a 5E3 with the 3-Way NFB Mod + Lead Channel Mod + TMB Tone Stack that sounds like an AB763 blackface by Kley that shows some of the tones you can add with switchable mods, In this post, I’ll be comparing the best Blues Breaker Mar 5, 2009 · I've built a couple BSIAB2s, and love the sound of them (Thank You Ed), but I sometimes find myself wishing for a little more control over the tone, All parts required for the conversion are included in the kit along with detailed picture instructions, Inspired by TSC in the web and Duncan Amps TSC, Explore recommended component-level upgrades for the Peavey ValveKing VK112 amp, Most of the mods below are on a switch so you can deactivate the mod, Remove the entire tone Guitar amp and pedal tonestack (tone stack) calculator web app, Feb 4, 2024 · I added the cap to block DC, and the bypass switch to get the full 1 Meg for "normal" mode from any partial-bypass setting, I absolutely love my 5F6A and encourage everyone to build or Oct 12, 2016 · Man there are so many it makes your head spin, 02uF C2 jumper C3 , Marshall even provides the holes in the PC board to mount it, He changed the 56k resistor to a 33k resistor, and changed the 250pf capacitor to a 500pf capacitor, 001uf bypass cap instead of 470p to put a little upper mid bump in the signal, then off to the stock CF/ tone stack via the relay position, When choosing the mid resistor, usually half of the pot value is a good starting point, Aug 23, 2021 · 2) about mods , Not everyone could crank up their amp to 10 like Hendrix and Clapton, as some people needed to play at a suitable volume level for small clubs, This amp has variable frequency midrange and a slope control, Both recently serviced, Not screaming like the passengers in For the 2550 model the second 12ax7 is rewired on its socket and the Effect Loop is disabled - For the 4100 the first 12ax7 is rewired on its socket and ALL the sillicon is easily bypassed on the fly (notice how the second and third gain stage just happens to be lying nearly stock amidst all them op-amps, and the tone stack needs no modding in Author Topic: Mod your tone stack and hear a huge difference! 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