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: Ratverb

Published: 30 June 2019 30 June 2019

 

 

Hey, everyone! Hope your summer is going well.

It has been a little quiet lately, but our R&D logjam is starting to break loose. Today we announce our new Ratverb module. The Ratverb compares to the Realistic Electronic Reverb 32-1110. The original unit was intended to add a reverb effect to just about anything you could plug into it, such as record players, TVs, microphones, instruments, and audio components. It had a Mic In and a Line In. If you used the Mic input which was intended for instruments and other gear with a quarter inch jack, then you had control of the overall input gain with the Mic Level control. At low levels you get a “small room” analog reverb, based on the old Panasonic MN3207 bucket brigade delay chip. But as you turn up the Mic Level, it quickly began clipping and distorting. About halfway up was a nice overdrive sound, a little further was heavier distortion, and full up you got a nasty, spluttery, rude fuzz, sounding very similar to the Maestro FZ-1 Keith Richards used for the riff of riffs in “Satisfaction”.

The Ratverb closely follows the original circuit design and behaves the same way. With the Gain on zero, you get a slightly warm reverb with just a hint of extra grit and a slight boost. Turning the Gain up goes through all the levels of OD, distortion, and fuzz, just like the original. Although technically a delay, the very short delay time makes it difficult to use as a delay. It’s best as an analog reverb, giving a “small room” model, with or without the dirt.

It's sort of an odd pairing – boost/OD/distortion/fuzz with an analog reverb, but also oddly addictive. Cranking it up with a strat will definitely give you some satisfaction!

Check out all the details for the Ratverb. And keep an eye on FB for more upcoming announcements!