Gerlt Technologies makes more than 235 customizable rack effects, at prices comparable to regular 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.


Explore the Gerlt Technologies (GT) Site

  • GT Effects

This section of our site describes our product offerings in general terms.  In it you will find info such as:

What are the benefits of rack effects?  What are the specific benefits of Gerlt Technologies rack effects?

GT rack effects vs guitar pedals - How do they compare?

What are GT custom rack effects?  What types of customizations are offered?

How does GT rack effects power work?

How does GT rack effect switching work?

How does GT rack effect cabling work?

How is GT rack effect maintenance minimized and made easy?

How do you install and uninstall GT rack effects?

How does GT keep rack effect pricing low?

  • Products

Our products consist of Enclosures, Footswitches, and Modules that you select to create your complete rack effects setup.  A number of the common parts have been gathered together into Startup Bundles, with discounted pricing. 

As you navigate the menus, you will find full descriptions, configurations, options, pricing, and other details for all of our products.

  • Purchase

Since our products are all configured and built-to-order, we don't have a shopping cart approach to placing orders.  The process is much more consultative. 

  • More Info

This section includes extra info that may be helpful when you are selecting or configuring our products.  A little rough around the edges and still under construction

  • Support

This section includes all of our Customer Support policies, info about using our products, contact information, troubleshooting guides, etc.  Again, a little rough around the edges and still under construction.




Hello Effects Fans!

Today we introduce The Prince flanger, which compares to the Boss BF-2 Flanger. Prince was one of the great musicians and entertainers of all times. He composed his own music, played all the instruments on some of his albums, wrote songs for and sponsored numerous other bands, won Oscar and Grammy awards, and even took on the big labels in the music industry. And, yes, so enraged Tipper Gore that albums now have to carry ratings reflecting someone's opinion of their content. He was also an accomplished guitarist, although that often went unnoticed among all his other talents. He was particular about his sound, and to the surprise of many, was able to achieve his funky, rock vibe with a collection of inexpensive Boss pedals. There's often a lot going on in his music, but the Boss BF-2 Flanger seemed to be one of his go-to pedals.

Prince wasn't the only player to use the BF-2. Many guitarists in the 80's used it, including Robert Smith of The Cure, David Byrne of The Talking Heads, Johnny Marr of The Smiths, and Billy Duffy of The Cult, as well as many other well-known players such as Ernie Isley, Jeff Beck, and Rory Gallagher.

The Boss BF-2 Flanger, was probably the most popular flanger upon its debut in 1980 and still remains popular to do this day. In spite of several cosmetic changes, the circuit stayed almost exactly the same from 1980 to 2001, when it was replaced by the BF-3. It was so popular that you probably know its sound, even if you don’t realize it, particularly if you listen to music from the 80’s. Not everyone thought it was the best flanger available, though. To some it could sound a bit harsh or metallic. The Prince has options you can select to change up the tone a bit, including reducing the harshness, reducing the noise, and increasing the “swoosh” by chopping the delay time in half. Like Prince, we like the original BF-2, but prefer the GT version with its available mods.

Check it out at:  The Prince


(PSSSTTT... Hey, Buddy! Yeah, you. Come over here. I wanna tell ya something. I heard GT has another great flanger in the works. Some might think it is approved by the American Dental Association, but it’s not... Just sayin’. Now be cool, and don’t go blabbin’ about it...)