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: GT-830

Published: 01 January 2020 01 January 2020

 

   

Hello, Everyone - We're back! Welcome to a brand new decade! We’re kicking it off with a new module announcement today.

For some reason, there are a few great Maxon effects that players in the USA may have missed. The Maxon DS-830 Distortion Master is one of them. Our GT-830 compares to this largely undiscovered pedal. The individual sections of the circuit are generally unremarkable in design, including input and output buffers and silicon diodes in both hard and soft clipping configurations. But there is a unique active tone stack providing independent Bass and Treble controls with a wide range of effect. The overall tone purposely highlights the low end, and tends to be a little warm and dark, especially when the Gain is low. It is meant to provide a solid bottom and some fat. The Gain provides a wide range, from almost clean, through overdrive, and into distortion. With the GT More Gain option, the Gain range extends well into hair metal tones, with plenty of touch, feedback, and harmonics. The Gain cleans up pretty well with the guitar volume, but don’t expect pristine cleans at any settings. The gain is enough to hit the front end of your amp or downstream pedals pretty hard, enabling amp break-up or meltdown, should you choose it. The character of the gain is somewhat Marshall-like, although clipping diode selection can change it up.

Since it is designed to fatten up the tone and provide a nice tight bottom, the circuit can sound dark, particularly with humbuckers. The wide range of active tone control will counter that, but even the tone stack is purposely skewed a little to provide more control over the lows than highs. The stock silicon clipping diodes are good, but red LEDs and no clipping diodes at all both yield brighter tones, although the character of the distortion also changes. In other words, clipping options are worth considering, maybe even more so for humbuckers than single coils. If you already have a bass-heavy tone, this may give you some good shaping options or push you into the Dark Side. If your tone is a bit thin or bright, this can give you some nice bottom end to fill things out a bit. Fat-bottom tone makes the rockin’ world go ‘round!

Check it out:  GT-830