Dexter Mods Boss SD-1 Super Distortion ‘TS-9’ Mod

Boss SD-1 'TS-9' Mod

Boss SD-1 'TS-9' Mod

The Boss SD1 is a take on the Ibanez Tubescreamer but has a slightly different circuit components and a different clipping design.

I have been doing SD-1 into 808 mods for years now and was recently asked to add a TS-9 mod to my list of mods so here it is.

You can add options like switchable clipping and higher/less gain switches if you want so feel free to discuss those via Q&A on the auction.

The mod consists of restructuring the clipping section from asymmetrical clipping to symmetrical clipping and replacing the out of spec Boss components with TS-9 spec components.

The stock, and noisier, JRC4558DD op amp has been removed and in it’s place an 8 pin socket has been installed. In the socket I’ve slotted a JRC4558D op amp and the auction includes a 4558P op amp as used on SRV’s Tubescreamers.

You can swap op amps to the one you prefer by simply opening the pedal and removing the 4558D op amp and slotting the 4558P into the socket.

The mod includes a Green LED and a brand new 9 volt battery.

Questions are welcome but please check the Dexter Mods FAQ first.

The mod is guaranteed and if there are any problems when you receive your pedal back simply return to me, I’ll service it, send it back and refund your shipping costs.

 [add_to_cart item=”BOSSSD1TS9″ ] 



Feedback on this Mod

Dexter Mods Boss SD-1 to TS-9 Mod: “The TS9 + gain mod is outstanding. Used as a boost the ‘muddy’ and mostly unused neck pick up on my vintage Maton responds with beautifully clear notes while retaining its warmth. Very nice!!”

— deano25 auction #253281101, Trademe