Gerlt Technologies makes hundreds of customizable rack effects, at prices comparable to guitar pedals.  It's time to dump that pedal board and get Your Tone off the floor!


 What We Do

You know them as guitar pedals

We build them as rack effect modules you can customize to get Your Tone

Put several rack effect modules into a 3U rack enclosure

Connect power and audio on the back like guitar pedals, adding connections for remote switching

Add a remote footswitch unit to turn rack effects on and off

Add as many rack effect modules, enclosures, and third-party products as you like. Plug in your guitar and amp. Rock it! It's that simple.


Quick Hits:

  • Check out our GT Effects Overview to see why we do this

  • Check out our Compares To charts to see the full list of effects we offer

  • Follow the menus from Products, to Modules, to Modules By Type to get a list of our effect types.  Select any effect type to get a list of all our effects of that type.  Select any effect to get full information including pricing.



Hello Effects Fans!

In my last update I was excited after finding some small quantities of critical components that are needed to build our effects. I hoped that to be a sign that perhaps some of our supply chain problems were easing. But it seems those were just one-off lucky finds. I haven’t found any more since then. On top of all the other problems, we now have the ripple effect of the conflict in the Ukraine, which has caused even more parts to become unavailable and/or very expensive.

It’s one thing to be optimistic, but another to be unrealistic. This is no longer a time for simple optimism. It is a time for handling unpleasant realities. Our reality is that it seems very unlikely that enough positive changes will occur quickly enough for us to re-open in 2022. While the corporation is in a good position to weather a continued lengthy shutdown, the people are not able to. We need to take some time to go do “other stuff” for a while.

We still have several new modules to announce. The work is complete on almost all of them, so I’ll try to get those announcements out in April and May. Other than that, I’m afraid it is going to be pretty quiet here until we are able to reliably source parts at reasonable prices again. I probably won’t have another update until late summer or into autumn.

The good news is that Gerlt Technologies is still here and alive. We haven’t “lost” anything. We still have the largest selection of rack effects available, getting close to 400. Our effects still sound great. And we still want to make them available to you. We’re just going to have to continue our break for a while until the business and economic conditions improve to the point that we can provide outstanding products and support at affordable prices.

I apologize for the continued delay and will do everything I can to get us going again as soon as it becomes feasible.



Bill Gerlt

President, Gerlt Technologies

Dallas, Texas

11 April, 2022


Hello, Effects Fans!

I hope this note finds you safe and healthy.  The world has certainly been a different place over the past several weeks, although perhaps we are now taking the first tentative steps on the path to whatever the new "normal" will be. 

I'm looking forward to the return of live music, as I'm sure you are, too.  I know musicians are among those that have been most impacted by the shutdown, so I extend my best wishes to all of you as venues begin to reopen.  As we venture back out into the world, I encourage everyone to (safely!) support local businesses, particularly local bars, restaurants, and other small venues that have live music.  The bands and venues both need our support.  I think we can all agree that going out for a bite, a drink, and some music isn't exactly a difficult assignment!

It's hard to guess when the big venues will open up again.  Before the shutdown, I had purchased tickets for The Eagles, The Who, Jimmy Buffett, The Rolling Stones, Bon Jovi/Bryan Adams, Def Leppard/Motley Crue/Poison/Joan Jett, Guns 'n Roses, and Sammy Haggar/Whitesnake/Night Ranger.  Most of those shows have been cancelled or postponed indefinitely, including one that was scheduled as far out as September.  Those were going to be highlights of my year, as they undoubtedly would have been for millions of other fans.  I hope our doctors and scientists figure out a fix that will let us pack the stadiums again, as well as our local venues.  I can still remember the first concert I ever saw.  It was Journey, well technically, it was Point Blank, their opening act, that I saw first.  That's back when there was general admission to the floor, ticket prices were around $10, beach balls and frisbees were flying before the show, and the lights in the audience were actual lighters, which were promptly used to fire up a certain hazy, aromatic ambience when the house lights went down...  I was a young hick from a midwestern town of 34 people and never thought I'd actually see a big name band, so my mind was blown.  Big shows are still magic like that for me, many shows and decades later.  Music isn't just pleasant sound.  Since that first concert, it has become a part of me and I'm not whole without it.  I'll get by with recordings for a while longer, but there's nothing like live music, one of the most basic, primal, instinctive shared social experiences in the history of mankind.

As you know, businesses large and small have been trying to find ways to adapt to the changes.  GT has been impacted, of course.  Most of our plans have been scrapped, or at least delayed indefinitely as we figure out how best to move forward.  Luckily, we can survive this economic shutdown - not forever, but for quite a while longer.  We have been forced to slow or stop some activities for now.  We do still plan to attend the Dallas International Guitar Festival at the end of July, assuming it doesn't get cancelled.  Most other events are already cancelled or postponed until the economy gets fired back up and the health concerns are under control.

During this quiet time, our focus has been on what we can do in quarantine.  It turns out that developing new effect modules could continue, although at a slower pace due to shipping and delays with some of our vendors and personal time lost in adjusting to the quarantine.  So that's what we've been up to - developing more rack effects.  At the moment, we have boards back to build and test a very good flanger and a Swedish death metal distortion for you "turn all the knobs to 11" shredders.  A boost used by one of the great rockin' guitarists of all times should also be available soon.  And then, another 27, yes, twenty-seven, additional module configurations.  In total, we have boards back right now for 32 new modules/configurations.  We just need to heat up the soldering iron and make sure the board designs are all correct.  That will bring our number of "compares to" module configurations to over 300.  That means GT will have a selection of custom rack effects that compares to over 300 different guitar effect pedals, not counting hundreds of customization options.  We offer a bigger selection than the major pedal companies combined, but in rack format and at prices much more affordable than rack effects of the past.  All made by hand, to order, right here in the USA.

Check it out!  And watch for further announcements over the coming weeks as the economy begins to recover and our plans get back on track.  It's going to be better than ever!


Bill Gerlt

President, Gerlt Technologies

Dallas, Texas