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

 

New Module: Heavy Metal

Published: 30 April 2025 30 April 2025

 

   

Hello, Effects Fans!

Today we announce our new Heavy Metal distortion module.  The Heavy Metal compares to the extremely popular Boss MT-2 Metal Zone pedal.  The MT-2 is one of the highest-selling pedals of all time, with over 1,000,000 sold.  Even so, many players don't dig it, at least in its stock form which hasn't changed since it was introduced in 1991.  As a result, there are loads of mods offered for MT-2 pedals, although it is often difficult to figure out exactly what is changed and the end effect of the changes for many of those mods.  With so many mods available, many players have found that metal tone they were looking for.  The mods offer many changes, including reducing the noise, better control of the mids, substantial changes in the level of gain, trimming highs, tightening the bass, and adding a noise gate.  Since our modules give us more room to work with, we are able to offer many of these mods on switches giving you a selection of different tone options.  You aren't stuck with just one tone option.

The circuit is complex, very different from other high-gain distortion designs.  It took a long time for us to design our Heavy Metal, because we wanted to offer both the stock circuit's sound, along with many of the available mods.  Most of the extra time spent was in researching all those different mods, figuring out what they were and what they did, and trying them out.  The result is that we have a killer metal module with a dizzying array of options.  It's far too much to go into the details here, so please visit the Heavy Metal page, when you have plenty of time to go through it all!  Or look for it in the Distortion Modules section under Products -> Modules -> Modules By Type.