Hello Effects Fans!

It has been pretty quiet here since my last update, as expected, but not silent!  Earlier today we announced our new 3U Pedal Rack and our new Double Looper configurations.  These two offerings are designed to make migrations to our rack solutions easier, providing more and better ways to continue using your third party rack effects and pedals in an all-rack solution. 

Our status hasn’t really changed much.  You are probably aware that there are some serious supply chain problems in the electronics world.  Those shortages are affecting the availability of many end products from appliances to automobiles, to, yes, Gerlt Technologies rack effects.  We are simply unable to get some critical parts right now.  Projected back order dates come and go with no new parts becoming available.  For us, these are simple, but critical parts used in our circuits.  They haven’t stopped making them or anything like that.  It’s just that they aren’t able to make enough of them fast enough with staff, facilities, and transportation that continue to be impacted by COVID all over the world.  Of course, the small supplies that are made are going to The Big Guys first.  It will be a while before availability trickles down to smaller companies.  That’s just the laws of supply and demand in action.  It will eventually get sorted out, but in the meantime small manufacturers like Gerlt Technologies will just have to wait.  That’s why we stopped taking orders earlier this year.  We plan to be a survivor, not a casualty, of the COVID aftermath.  I still don’t know when we’ll be able to restart, but some of our latest backorder dates for parts will almost certainly push a restart into early next year.

The best news is that live music is back!  Every day I see more and more info about tours and local shows.  I hope that all you professional and gigging musicians are getting more bookings – we’ve missed you!  For all of us that don’t play publicly, COVID has been a nasty reminder about taking our lifestyles for granted, as has been the passing of some great musicians like Dusty Hill and Charlie Watts.  Enjoy your favorite music live (and safely) when you can!

We appreciate your patience with us during our temporary shutdown.  Once things are back to “normal enough”, we’ll be ready to do what we can to earn your business and get you into some excellent rack effects.


Bill Gerlt

President, Gerlt Technologies

Dallas, Texas

26 August, 2021



Gerlt Technologies makes hundreds of 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.




Today we announce our new Obsidian Drive. The Obsidian Drive compares to the Blackstone MOSFET Overdrive, a pedal you may have overlooked unless you happen to be Billy Gibbons.

The Obsidian Drive gives you two channels of Marshall-ish overdrive. The Orange channel gives you the standard Volume, Gain, and Tone controls you would expect on an overdrive. The Tone control is really a mid-scoop control. At one end you get flat mids, and you scoop the mids from there. That channel goes from clean-ish to raunchy, full-on drive. The Volume gives you a slight boost, more with the Gain up, of course.

The Red Channel is similar for Volume and Tone. But the Gain is different. Minimum gain is at the middle setting. Dialing one direction increases gain in the usual way. Dialing the other direction increases the gain, but also cuts the bass. That may be good for dark setups or perhaps humbuckers. In addition to the two foot-switched channels, there is a MOSFET buffer you can switch on or off. We deviate from the original in that the Volume, Gain, and Tone for each channel is completely independent. The original shares a Tone control. We also have a couple of small options you might want to try out.

For details, check it out Obsidian Drive 

Or better yet, stop by our booth at the Amigo International Guitar Show in Ft Worth on Oct 5 and 6 and play it yourself!