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!

Chances are good that you are doing what we are doing – replanning your work and social life while the world deals with a new health concern.  You can get better info about all of that elsewhere, so I’m not going to rehash it here to provide information that will be outdated by the time I get it posted.  “Be cautious, but not fearful” is my approach, mixing in a good deal of “be flexible” and “be mindful of others” as we adjust.  I imagine many of you have adopted similar approaches.  While I expect we are all sharing similar constraints and inconveniences, those changes can impact us in different ways.  Hopefully normalcy will return quickly, leaving us all a little wiser and a bit more thoughtful as a result.

At GT, some of our activities have been affected and some not so much.  And not all the impacts are bad. 

First, we also just announced that the 2020 Dallas International Guitar Festival we plan to attend has been postponed.  The Nashville Amigo Guitar Show was also cancelled, although we had schedule conflicts for that show and probably weren’t going to be able to attend.  The Nashville show is being replaced by a show in Arlington, TX this summer.  We’re evaluating whether we can attend that show.  We’ll have to wait and see as other scheduling challenges get resolved.

There’s also a bit of “slow down” in the business community as more employers reduce hours and/or ask their employees to work from home.  In an industry where physical parts, equipment, and supplies need to get from Point A to Point B, things don’t move too quickly if there are no people there to move them.  We expect those challenges to continue for a while.

Previously I had explained that we were going to be slowing R&D activities for a while to do some work on our website and some related activities.  That work has been progressing nicely and the first stage of it is nearly complete.  Much remains to be done, but we have a “breather” in those activities planned for the next couple of months or so.  Those activities included some third-party support.  Since most of that is online work, it is probably less subject to disruption since everyone involved can do most of this work from home or alternate locations across the Internet.  If that unplanned disruption with the online work doesn’t occur, then our planned disruption to R&D may start again in a couple of months when we resume our website work.

With postponements and general slowing, along with the planned break in our website work, we find we actually have more time than expected for R&D activities.  We have one more module that is completed and should be announced very soon.  We also have our first boards back for another 4 modules.  We are in the process of building and testing those, which if all goes as planned should give us more modules to announce in April and May when we were expecting to not have any new product announcements.  We also have another very large batch of modules with designs that are complete, or very nearly so, and we’ll be getting boards for those soon.  I’ve lost track at the moment, but there are about 20 of them, which will “Compare To” around 30-50 well-known pedals.  Again, if all goes as planned, we could begin releasing those around the beginning of summer.

Or something else may happen to disrupt all of our disrupted plans!  Whatever it is, you can be sure that we’ll still be here adjusting our work of designing and building the largest offering of the best rack effects available in our solar system!


Bill Gerlt

President, Gerlt Technologies

Dallas, Texas