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

 


 

   

Those of you that have stopped by our booth at a show know that we have third party tuners, pedals, and noise reduction systems in our demo racks. We only use the tuners. The other third party stuff is just there to show some good options for other gear you might want to consider when you move to a rack setup. Those tuners, pedals, and other third-party equipment have one annoying downside – they each require a transformer, or “wall wart” for power. Since we also have good third-party power conditioners in our racks, we have plenty of outlets to plug in those transformers. The problem is there is no good way to secure them. When we move our rack cases around, pack them in trucks, turn them upside down, and generally mistreat them, those transformers come unplugged and bounce around, potentially damaging the transformer or anything it bounces into. Not good! Those transformers can also be a source of annoying power supply noise that can easily find its way into the audio signal. Also not good! Some transformers are either too large or have a poor physical design, making it difficult to even plug them in to some power conditioners. That’s just downright annoying!

Now we have a solution for those problems – the Warthog. The Warthog module takes in a standard GT 18V Power module feed, just like our other modules. It then converts that into four different output channels. You get to choose either center positive or center negative polarity, and the voltage for each of the four output channels. Voltages are all DC, not AC, and are regulated to about +/- 10%. Common choices include: -9V (100ma), -3V (100ma), -1.5V (100ma), 5V (100 or 1000mA), 9V (100 or 1000mA), 12V (100 or 1000mA), 15V (100 or 1000mA), and 18V (100mA). Other configurations may be available – let us know what you need. You can daisy chain from these channels, up to their mA limits. You can use both positive ground and negative ground effects, but not on the same channel. The Warthog is intended to be used with our 18V Power module, so that we do not have to duplicate some of the protection circuitry provided by the 18V Power module (and lose some power in the process). However, we can add a protection board so you can power it from a third-party power supply if you prefer. Using it with the 18V Power module gives you the ability to see your mA usage so you can balance your power consumption and not exceed the maximum number of mA for the Warthog or 18V Power channels.

For more information and details see: Warthog