Comments on: Fat mod for the Boss DS-1

By: admin

admin — Thu, 09 Feb 2012 00:01:56 +0000

A simplified version of this mod would be to only change the R9 resistor from 22R to 1k. Leaving R6 with the original value will set the bias a little to high but it is not far enough off to be a problem.

-Jack

By: Chris Gibson

Chris Gibson — Sat, 11 Jun 2011 15:51:45 +0000

Not sure if you guys are aware that this really sounds great and makes the pre 94 vintage circuit design with the toshiba ic sound amazing. It takes the ear piercing high hiss end of the distort right out of play. Most all info on the web is for the ds-1 with the grey ribbon connector non toshiba post 94 ds-1. This is the way most mods should be posted with a pic and circled parts. Schematics have too much variation.
Even the D2 is wired diff after 94. Plus it help to test all parts with a multimeter to get exact values. Heres a pic:

http://imageshack.us/photo/my-images/832/1989ds1guts1.jpg/

By: thompsoneagle

thompsoneagle — Sun, 22 May 2011 20:17:16 +0000

K i did this mod & loved i! Now i have played out with it several times with five & four string bass but do notice a bit of loss with pedal on….have to crank it a bit but think it could be squashing sound alittle….any suggestions, i used carbon comp reaisters?

By: DogFacedBoy

DogFacedBoy — Sat, 14 May 2011 05:03:15 +0000

Ok, I tried this tonight and it sounds pretty good. It’s not as loud, but still loud enough for some boost if needed.
I really like the tone knob now. I’m not sure if it’s got more bass or if the bass that is there is just not scooped or something, but it does sound fuller and more natural to me. The stock DS-1 to me sounds a bit like a wet fart into a tin can full of bees, but this mod makes it usable.

By: thompsoneagle

thompsoneagle — Sat, 30 Apr 2011 13:59:50 +0000

First time modding and w/ success thanks for the tips. I wanted to make my ds-1 more suitable for bass. Think i like it so far but will try it out live tonight. Playing 5 string so the low b can be to muddy with some pedals and I want to maintain the great sustain I get from the bubinga wood!

By: darbour

darbour — Wed, 30 Mar 2011 20:07:06 +0000

I did this mod last night and the results are a little strange. I have a neck pickup that’s ~5k and a bridge that’s about 8.5k when I use the neck or the bridge on anything but near full volume I don’t get distortion but there is a strange high rasp. Like a really thin, quiet distortion doubling the guitar. With the volume up on the bridge it sounds pretty amazing, so I’d like to try and keep it. Any ideas? Help would be greatly appreciated!

By: Harrisxr650

Harrisxr650 — Sat, 19 Mar 2011 13:56:24 +0000

@Steven R13 was 2.4k from Keeley mod so i did some changes and ended with an 1k mf 1% resistor and sounds great for my taste. thanks anyway man
but i would like to ask now again …output is really high i set the level to 1 and less..any way to reduce output a bit? thanks again for the mod and the help

By: Rafik Guergour

Rafik Guergour — Mon, 14 Mar 2011 15:28:59 +0000

Salem alikum ! (Peace)
I have made a DIY DS-1, respected the values of the stock version except for the IC (no M5223 or NJM34.. aren’t available in my country) so I put an LM358N, when tone know passes 3, the sound is almost fuzzy .. and harsh .. I DO REALLY THING THAT THIS MOD IS THE CLUE !!
I’ll try it this evening with god’s will !!
How about C4 250p, does it have any influence on the choice of the IC??!

Thanks A lot Mr ORMAN !
Greeting from Algeria …
“.. True civilization is where every man gives to every other every right that he claims for himself”

By: Steven Burvenich

Steven Burvenich — Sat, 12 Mar 2011 10:23:17 +0000

@harris:
Just drop R13 to 3.3k or 2.2k

By: Harrisxr650

Harrisxr650 — Sun, 06 Mar 2011 12:13:28 +0000

Hey. just did this mod on my keeley modded ds-1 the tone quality i got from this mod is really great but distortion dropped a lot and i would love to have it back but with the same tone quality this mod gives:). anyone knows a trick on how to bring back the distortion