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!

Today the message is unpleasant.  After figuring how to deal with some of our government’s policy decisions for the past several years, I must finally admit defeat.  It is not feasible to continue operations with the latest round of policy changes.  As recently as a few days ago, I thought it might work out.  Then I was hit with business-ending tariff charges, with more to come.  To be clear, it isn’t just these new Trump tariffs that have beaten me.  Biden-era tariff changes and policies were also difficult to survive.  The cumulative effect is too much.  

As an entrepreneur I take calculated and managed risks.  Sometimes it works out, and sometimes I seem to be shooting at my own feet.  But I can’t survive an economic nuking from my own government.  It’s not just a political disagreement, or differing opinions, theories, or expectations.  It’s a matter of undisputed facts, real dollars.  Gerlt Technologies’ “Game Over” criteria were met this week as those facts became crystal-clear.  I don’t like politics and refuse to take part in it, so I’ll just leave it at that.

Gerlt Technologies will no longer take new orders for our effects.  We do still have our popular 3U Pedal Racks available until our inventory is depleted.  New tariffs on metals will make them too expensive to restock, so get ‘em while we’ve got ‘em!  I have a handful of new modules that I’ll be completing soon.  I’ll still announce them when they are finished, just ‘cause.  We were already contemplating thinning out some of our guitars, amps, pedals, and maybe some components and other gear that have somehow quietly filled up all our available space over the past several years.  We may add some listings for those on the site or perhaps on Reverb in the coming months.  Keep an eye on us if you are interested in some lightly used gear in great condition.  I expect and plan this shutdown to be permanent, but maybe I’ll pop up and take a look around in a couple of years if enough major changes take place in government policy after the mid-term elections.   

It has been a lot of fun!  I enjoyed meeting thousands of you along the way – always the best part of any adventure.  Thank you all, and all the best to you and yours!

Bill Gerlt

President, Gerlt Technologies

26 August, 2025

 

Several New Modules!

Published: 03 November 2025 03 November 2025

 

   
 

Hello Effects Fans!

Yes, we’re closed, but I previously mentioned that several new modules would be announced anyway, since they were already nearly finished.  So today, we announce a 6-pack of new modules!  To keep this message short, I won’t go into the usual details here.  You can see all the details on the pages for these new modules at our website, www.gerlttechnologies.com.  Just search for them by name or follow the menus from Products -> Modules.

There is one new Amp Sim module, that comes in two configurations.  The Chameleon compares to the Tech 21 SansAmp (original and reissue) and the SansAmp GT2.  These pedals have been used by numerous guitar and bass greats, but probably became most known for being used by Kurt Cobain of Nirvana.

There is one new Fuzz module, the Fuzz Machine, which compares to the classic 70’s fOXX Tone Machine – wild and unruly, with a GT mod to turn it into a wild and unruly overdrive that sounds like no other OD we can think of.

There are two new Phaser modules, the Pulsar and the UniThrob.  The Pulsar compares to the EarthQuaker Devices Grand Orbiter and the UniThrob compares to the EarthQuaker Devices The Depths.  One is a technology and control update to the MXR Phase 90 and the other is a technology update to the psychedelic Uni-Vibe. 

We now also have the Wah Baby, our hyper-configurable wah module.  Yes, it took a while but we finally got around to building a remote-controlled rack wah pedal with a dizzying number of options that allow you to configure it like almost any other wah on the market, or like no other wah on the market, or like multiple (at the same time) other wahs on the market.

While we were working out the remote control wah, we also decided to introduce a remote-controlled volume module, simply called Volume.  In function it behaves like the other rocker-pedal volume controls out there, but since it is remote controlled like the Wah Baby, your signal stays in the rack without going through those long cable runs to the rocker pedal.

Yes, if you’re counting, that makes 7 new modules, not 6.  Wouldn’t it be nice if 6-packs always came with an added bonus?  Sure it would!  That’s just the way we roll here!

Sadly, this will likely be my last update for some time as I experiment with finding out what “retirement” means.  Though we are closed, we are still here, keeping an eye on things, including the business climate.  We still have a small number of 3U Pedal Racks for sale, but when they’re gone, they’re gone.  In the coming months we may also be clearing out a few hundred pedals, some guitars and amps, difficult-to-find pedal components and parts, and other gear that has been building up for the past several years.  It’ll be a bit before I get that gear listed, so keep an eye on FB and the website for news about that, probably also Reverb.

Take care, play loud, and I’ll see you at the beach!

Cheers,

Bill