I’ve created a new commercial website with pedal prices and ordering information.  DTS Audio Research and Technology can be found at:


Please feel free to register with the new site, and and if you’ve purchased a pedal in the past, you can add your reviews and feedback.  Thanks!


Update:  If you are interested in purchasing a pedal, please visit my commercial website: www.dts-art.com

New pedals are becoming available again and I think these are the best SDD-3000 preamp pedals yet.



I’m very pleased with how the metalwork and finish turned out on them. With each version produced, I make little improvements to the design.

I only have a limited quantity (really, just a few) of these on hand at the moment but I will indeed have a larger quantity available later in the summer.

If you are interested in purchasing a pedal, pricing information can be found at my commercial website: www.dts-art.com

Here is a Fuzztone F-1 clone (i.e. “Rab” Fuzz) I recently built and installed inside an Orange enclosure, as a tribute to the original Kay Fuzztone pedal. Personally, I think this looks better than black:




The original Kay was all orange (plastic), but I chose a black rubber foot pad here, because I figured an orange one would look start to look dirty rather quickly.

This was sent to me recently… It’s from a Japanese magazine called “The Effector Book” and I thought it was pretty cool:



I’m told it says, “If you are trying to get the guitar sound of U2, it is the must item to get!”

You can purchase DTS SDD-3KP pedals at Musette Japan

I’m currently sold out of the SDD-3KP and FA-2 pedals with no immediate plans to produce more as I plan to focus on other projects. I may consider making updated versions in the future, or maybe offer them in a kit form if there is enough interest in something like that.

I’m quite proud of the quality achieved in the production of these pedals and I’m confident they will serve their owners well for many years to come.

If you have ideas of what you’d like to see (updated versions with extra features or perhaps a kit) let me know!

The last one!

The last one!

Here is a new project I’m quite excited about.  It has been in the design and chassis fabrication stages for a little while already but I now have some pictures worth sharing.  This is one my most ambitious gear constructions yet!  It’s a Vox AC-30 clone.  Okay so that’s nothing revolutionary, but what makes this one a little more special than most AC-30 clones is that it has a smaller footprint.

The basic design requirements for this project were to 1) replicate the Vox AC-30 brilliant channel circuit (Marshall/Korg/TBX or Jennings/JMI as desired…Note that it’s easy to do one or the other with a few component changes) 2) Use hand wiring as the construction method (i.e. turret boards for easy repair) and 3)  Try to keep some “vintage” flavor to the overall look of the amp, even though it’s not specifically a replica of a particular version of the AC-30.

Since the vibrato/tremolo channel is not included this allows some saving of space used for the overall footprint.  I used a mostly traditional 1960s Vox type chassis design, where there is a separate preamp and power amp chassis, which are then bolted together. However, I added some extra flanges for added rigidity. Here is the preamp/main panel chassis:

AC30 Preamp Chassis 1


And here is the chassis for the power amp section:



The two parts get bolted together, and then a back panel (with ventilation slots) is also screwed on:




The back panel will hold the speaker output jacks and an IEC connector for use with an AC power cord. You can see that I already started inserting some parts (mains switch and fuse holder) to check the fit…stay tuned for more updates as I wire this baby up!


Posted: 2013/04/29 in Uncategorized

For no particular reason I felt like sharing some thoughts on building gear today.

If I didn’t think it sounded horribly pompous, I would categorize it under “Philosophy of Building Guitar FX” or some such nonsense…comments are most welcome.


Why do we build things like this?  So many inexpensive mass-produced products are easily available off-the-shelf.  In many cases they are adequate to the job at hand, and fit the budget.  Nothing wrong with that.   Sometimes they only need a little fine tuning  (a properly modified Boss SD-1 can sound fabulous.)  Tinkering with extant pedals is fun, something akin to what guys did in the 1950’s modifying old Fords into hot rods.  It’s also educational.  And then, every once in a while there is a need for a sonic tool that doesn’t exist or disappeared long ago.  You have an idea, so why not try and realize it?  Much of the reward is found in overcoming the challenges involved and the creative process is a pleasure in and of itself.  Build 1, 2, a few more…  Every time you repeat the process you make improvements, and and strive towards perfection incrementally, all the while knowing you will never reach it.

There is great satisfaction in building something of real quality, but also a lingering question…could I make it even better if I changed x, y, or z?  This tendency is contradicted by the knowledge that you don’t want to “fix something that’s not broken” as the old saying goes.  There is a balance to achieve.  If it’s good, it’s good.  Much of consumer culture revolves around the idea that you’ve always got to have the latest and greatest.  Oooh. Aaaah.  Buy more stuff.  The cheaper it is, the more you can buy.  And the quicker you can toss it.  Rinse, lather, repeat.  I think this is mostly backwards. I would rather say, “buy less, but be discerning”.

Whenever I have money to spend I am cautious, and try not to be wasteful.  I choose thoughtfully.  Some things cost more, but are worth much more than what they cost.  Quality food costs more but tastes better than cheap food, and saves you in the long run with better health.  A good pair of shoes can cost five times the price of some cheap imported sneakers.  Those sneakers will last a year before hitting the landfill, while high quality shoes can easily go ten years, get resoled for not much, and then go another ten.  Tools are another purchase where I feel that a little extra expense is worth it.  A finely -crafted knife or chisel is a pleasure to hold and examine.  And so guitar gear is just another tool.  It’s tool you use to take you on your sonic explorations and  musical adventures.  It should sound great.  It should be rugged, and survive the rigors of touring, from the bedroom, to the bar, or maybe the stadium.  And I do believe, that it should also be pleasing to hold and look at.

In short, why?  For the fun, satisfaction, and pride in making cool stuff.