Hello Effects Fans!

It has been a while since my Jan 31 update, in which I announced that we stopped taking new orders for a while until the COVID situation and the pieces of the economy that impact us improve.  We’re hoping that the ongoing vaccination programs will help, but still cannot predict when we’ll be ready to fully open up for orders again - so no news on that front.

If you have been watching, you’ve seen a steady stream of new module announcements as we continue to clear out the work we had in progress.  We just put out the announcement of our AstroFuzz module this morning.  That is the last of the modules we had in our queue, but it is a great one – one of our favorites.  There won’t be any more new module announcements for a while.  We still have a long list of new modules we are itching to start on, but we really have to stick to our “pause” plan for a while.  We’ll still probably bend the plan a little bit to sneak in tiny bits of R&D time here and there so we won’t be starting with an empty queue when we “resume”.  But don’t tell anyone.

We also had some other products besides new modules that were making slow progress in our R&D queue before the pause.  One of them is our “Naked Pedals”, which we also announced today.  These are pedals we sometimes build to try out a new effect circuit.  Once we build them, we have no further use for them.  We are now offering them for sale, even during our pause.  Check them out.  Just search for Naked Pedals or look for them in the Products menu.

In addition to the Naked Pedals, we have another pedal-related product that we may make available in the next couple of months or so.  It is something a bit unusual, but we think it is very useful and complements our rack products nicely.  It bends our pause plan a bit more than we probably should, so we’re still considering whether we need to wait until we resume instead.

While we’re paused, we have only very limited time available for our normal activities.  However, if we can manage it, we hope to begin putting together some product videos.  Yes, you’re right – it’s about time!  With our unique way of building effects, along with the sheer volume of effects we offer (hundreds!), this is a gigantic activity for us that is going to take a long time to just catch up with the effects we already have.  We’ll probably know more about our plans for this in the summer, so maybe I’ll have news about that in my next update.

We had a brutal freeze here in Dallas a few weeks back, but the sun is shining and Spring has arrived.  It’s one of my favorite times of the year, the return of warm weather!  What I especially hope is that we’ll soon be hearing live music, both indoors and outdoors.  They say music is the soundtrack of life, and that’s really true for me.  This past year without live music has been sort of like those big “clunks” I used to get between (or during!) songs when my 8-track player switched tracks.  2020 was the year of the “clunk” for me.  But now the sun is shining, the pool is warming up, and the optimism of Spring is in the air!  


Bill Gerlt

President, Gerlt Technologies

Dallas, Texas

12 April, 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.




Hello, Effects Fans!

Yes, things are going slowly and we’re getting a bit stir-crazy, but we’ve kept busy developing new modules.  Today we announce the FBomb.  The FBomb compares to the preamp circuit of the vintage Echo Plex 3 tape delay effects of several decades ago.  It also compares to pedals based on this circuit, such as the Xotic EP Boost, Catalinbread Epoch Pre, Dunlop Echoplex Preamp, MXR Echoplex Preamp, Chase Tone Secret Preamp, ClinchFX EP-Pre, and others.

As you probably know, the Echo Plex tape delay system was an outstanding effect in its day, even if it was a bit finicky to maintain.  Old units in good repair, or the new modern re-makes available, all command steep prices.  The old units were a bit crude compared to pedals today.  One of the crude features was that they did not have a true bypass when switched off.  The guitar signal still went through a preamp and was affected by other "stuff" in the circuit.  Crude, yes, but lucky.  Players noted that even when the unit was off, their tone still sounded better than without the Echo Plex at all.  There is something magical in that non-bypassed circuit that makes your tone more pleasing.  It's the kind of thing your turn on and leave on all the time.  You might not notice it that much if you leave it on all the time, but try turning it off - noooo!!!

People have been arguing for years about what exactly causes the “magic”.  Is it the FET transistor?  The slight tweaking of the frequencies and phases?  Something else in all those tape recording and playback components?  The internal voltage used?  The vintage components?  We think there are multiple design factors coming together to yield one of those difficult-to-explain happy accidents, sort of like those weird capacitor values in the Univibe.  Whatever it is, players have found it definitely sweetens their tone and can be left on all the time, likely as the last effect going into their amp, the same way people used the original Echo Plex units.

There are numerous Echo Plex style preamp/boost pedals, with considerable variation in their circuits.  That seems a bit odd, since they all attempt to reproduce the sound of a specific, documented pre-amp circuit, but it’s true.  The variants probably sound a bit more alike than they do different, but we've designed our FET Bomb or "FBomb" to compare to a couple of popular variants.

If you prefer a design that is closer to the actual Echo Plex 3 preamp design, making some effort to factor in the effects from the rest of the record/playback circuit, and doing the phase tweaking of the original, then our ThermoNuke configuration is similar to the ClinchFX EP-Pre pedal.  You won't get much boost out of it, but it has that always-on tone polishing going on.

If you prefer a design with more boost, and you don't care about being true to the Echo Plex 3 design as long as you get similar results, you might prefer the Hydrogen configuration, which compares to the Xotic EP Boost.  You can "set and forget" the level and turn it into that always on tone enhancer.

Unlike many of our modules, we don't recommend tweaking this circuit.  It does what it does and needs all the elements of its design to do it.  If you need a little something different, check out some of our other FET boosts:  Sabre, Woody, and Edge Boost.

Either way, “FBomb, yeah!”

You can see the details about our FBomb at: FBomb.  Or look for it in the Boost Modules section under Products -> Modules -> Modules By Type.