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: Green Light

Published: 07 March 2019 07 March 2019

 

Yes, it is time for another new module.  Today we announce our Green Light module.  It compares to the Mad Professor Little Green Wonder (LGW).  The Green Light is technically a close relative of the Tube Screamer, sort of a “Tube Screamer for people that don’t like Tube Screamers”.  Lower compression and more headroom, along with tweaked distortion allow it to stack well with other drive modules or amps.  It can be used to smooth out other effects that may have a bit of an edge to them.  The clipping, which contributes greatly to the overall distortion, is different from the normal silicon diode clipping found in the wide range of Tube Screamer-style circuits.  Green LEDs are used, resulting in drive that can go from mild to crunchy, but isn’t really meant to get into high-gain distortion.  Works better for blues, country, and classic rock than metal.  The Body (Tone) control also differs from other circuits in this class.  It gives you control of low mids to treble content, with a wider tonal range than your typical mid-hump green pedal clone, including a bit more on the low end.  The Green Light gives you the option for less tone coloring, and ranges from boost to Stevie Ray cookin’ blues rock.  We normally build the Green Light to run at 9V, but can go up to 18V for cleaner sound with more headroom.

You can see the details about the Green Light at:  Green Light

And don’t forget - in less than a month we’ll be at the Amigo Nashville Guitar Show in Franklin, TN, April 6-7.  Come on out to try our gear and see the best and most affordable selection of rack effects available.  Hope to see y’all there!