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!

In my last update I was excited after finding some small quantities of critical components that are needed to build our effects. I hoped that to be a sign that perhaps some of our supply chain problems were easing. But it seems those were just one-off lucky finds. I haven’t found any more since then. On top of all the other problems, we now have the ripple effect of the conflict in the Ukraine, which has caused even more parts to become unavailable and/or very expensive.

It’s one thing to be optimistic, but another to be unrealistic. This is no longer a time for simple optimism. It is a time for handling unpleasant realities. Our reality is that it seems very unlikely that enough positive changes will occur quickly enough for us to re-open in 2022. While the corporation is in a good position to weather a continued lengthy shutdown, the people are not able to. We need to take some time to go do “other stuff” for a while.

We still have several new modules to announce. The work is complete on almost all of them, so I’ll try to get those announcements out in April and May. Other than that, I’m afraid it is going to be pretty quiet here until we are able to reliably source parts at reasonable prices again. I probably won’t have another update until late summer or into autumn.

The good news is that Gerlt Technologies is still here and alive. We haven’t “lost” anything. We still have the largest selection of rack effects available, getting close to 400. Our effects still sound great. And we still want to make them available to you. We’re just going to have to continue our break for a while until the business and economic conditions improve to the point that we can provide outstanding products and support at affordable prices.

I apologize for the continued delay and will do everything I can to get us going again as soon as it becomes feasible.

 

Cheers,

Bill Gerlt

President, Gerlt Technologies

Dallas, Texas

11 April, 2022

 


 

   

Hello, Effects Fans!

Today we announce our new Super Drive module.  You may have missed the Boss Dual Overdrive SD-2 pedal of the early 90's.  It was only made for a few years, and didn't really catch on with the majority of players.  The pedal is basically two completely separate effects in a single enclosure.  There is an overdrive/crunch channel and a distortion/gain channel.  They each have their own Drive, Tone, and Volume controls, and you could switch between the two channels. 

Back in those days, Boss had great OD and distortion pedals, as did Ibanez/Maxon, and lots of others.  Players had plenty of good choices.  Perhaps that is why the SD-2 didn't really catch on.  It seems a good portion of players thought the OD channel in the SD-2 was nothing special, perhaps compared to other widely-available pedals.  But the Distortion channel rocks.  Many feel it is the very best of the Boss pedals for lead, also comparing favorably to lead pedals from other manufacturers.  Since switching between OD and Distortion on the fly required you to either turn a switch or buy a second remote control/switching pedal from Boss, it wasn't convenient to use both channels, which may have also contributed to its small fanbase.  

However, many players still like the OD and many of those that have tried the lead/distortion circuit love it.  Here at GT, we love this module. Both the Crunch and Gain channels are great.  The Crunch channel goes from a slight boost to a nice solid tube-like crunch.  The Gain channel goes from a light crunch up to a feedback monster high-gain tube distortion, particularly with the Extra Gain option.  The tone is thick and crunchy, but remains nicely articulate with good note definition.  The Tone controls cut more highs when the Tone is turned down than they cut lows when the Tone is turned up, making it more focused on the lows.  You'll get a little noise with the Crunch/Gain and Volume up, but you don't notice it when you're playing.  We think it's best to ignore the labels of "overdrive" or "distortion", and just approach it as a couple of different "drive" effects.  Let what your ears be your guide, but don't forget those Tone knobs.  Anyway, it's a "super drive", and we really dig both channels.  The more we play, the more we smile.

We offer two configurations of the SuperDrive.  The first is the SuperDrive 2.  This configuration includes both the OD/Crunch and Gain/Lead channels.  In addition to the standard on/off footswitch, we've added a second footswitch for switching between the two channels, making it easier to use than the original.  The second configuration is the SuperDrive Lead.  This configuration drops the OD channel and second footswitch, leaving you with what may be the best Lead/Distortion effect Boss ever produced.  It is also priced a bit lower and takes up less space in your enclosure.

We have made a few part substitutions in the circuit.  The original pedal used some cheap, "nothing special" op amps, transistors, and clipping diodes.  We have changed those out to better components.  Perhaps that contributes to why we like this circuit so much.  The advantage of these parts is that they cause less noise, a Good Thing in OD and Distortion circuits.  Plus, authentic non-counterfeit ones are available at lower cost, a Good Thing in all circuits!

We do offer some options for the circuit.  Feel free to choose a different op amp, perhaps one with even less noise than the 4559P we use by default.  The lead section of the circuit is pretty complex for a distortion circuit.  Counting input and output, it has 7 active stages.  Many distortion circuits have 1 or 2, maybe up to 4 or even 5.  It also has both hard and soft clipping.  As a result we don't really recommend changing it up too much.  Op amp swap, no problem.  Maybe some clipping diode options, if you really know the circuit and have a specific change in mind.  Otherwise, we recommend you save your customization budget for other modules.

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