Gerlt Technologies Rack Guitar Effects That Will Help Define Your Playing Style

Professional guitarists across a range of genres rely on rack effects rather than using conventional pedal-based guitar effects. A complex pedalboard can quickly become a liability if you rely on it on stage.  With a rack-based system, the only pedal you need with you on stage is a footswitch that controls your rack effects.  You won't have to worry as much about endless patch cables and dead batteries with this type of unit.

Are you interested in the different types of rack-mounted effects? Then here are some of the available ones from GT.


Boost is a fairly basic effect. It simply gives your guitar more gain before it hits the input stage in your amp.

Boost effects have been used to perfect the tone of some of the most influential guitar players in history.  For example, Tony Iommi, who's sound birthed multiple genres, used a treble booster to get his classic tone on the early Black Sabbath records.


Chorus works by splitting your guitar sound into multiple voices and then modulating those voices. 

Chorus is a pretty versatile effect. When you use it subtly, it can add a little more depth and movement to a guitar tone. Or you can turn it up and get some lush clean tones.

For a classic example of chorus in action, check out the intro riff to Nirvana's "Come as You Are."


A compressor simply squashes your signal, making the loud parts of your playing quieter and the quieter parts louder.

Compression is a staple of certain music styles; for example, a lot of funk guitarists use a good amount of compression. You can also make use of subtle compression to tone down some of the inconsistencies in your playing dynamics.


Delay is an incredibly versatile effect. It takes your guitar signal and plays it back at a specified rate. The sounds you can get from delay can range from subtle to otherworldly.

A little delay on top of your lead playing can add a new dimension to your sound that really makes your guitar sit nicely in the mix.


Distortion dramatically changes the waveform shape of any sound, squaring off the sound and adding a lot of overtones and harmonics.

In the past, this kind of sound was to be avoided at all costs. But people started to realize just how good a distorted electric guitar could sound, and the rest was history.

Distortion is an essential effect if you want to play any rock-based genre.

Envelope Filter

The envelope filter is an interesting effect because it reacts directly to your playing. Depending on your dynamics, the filter will react differently. This means it can take some time to get used to playing with this effect.

This effect might sound complicated, but the "quack" or "bow-wow" sound it makes is unmistakable. If you want to add some more funk into your playing, consider giving this effect a try.


While this isn't a particularly exciting effect, you should never underestimate the effectiveness of an equalizer (EQ). An EQ allows you to cut or boost frequencies within a certain range, allowing you greater control over your guitar tone.

For example, maybe a distortion adds some unwanted fizziness in the top end. You could easily use EQ to dial that down. Alternatively, if you think there isn't enough fizz, you could use the EQ to turn the sounds in that range up.


A flanger splits your guitar signal and then adds a slight amount of delay to one of the signals. The delay time is then modulated, creating a comb-filtering effect.

The effect this can have on the sound is often quite dramatic. A flanger can completely transform the sound of a lead guitar tone.

The key with flanger is knowing when to use it. A listener will tire of the sound quickly, so you need to use it only when the time is right.


Fuzz is an interesting effect, as whole genres have arisen based around its use. Using heavily down-tuned guitars and fuzz effects, bands like Electric Wizard have stretched the sonic possibilities of the guitar to its limits.

If you use fuzz, you need to use it right, or you'll end up with a horrible tone. For example, you should avoid playing full bar chords when using heavy fuzz. Stick to power chords and single-note lines.


Overdrive allows you to simulate the sound of an amp being pushed to its limits. Subtle overdrive can create a fantastic bluesy tone that still accommodates full chords.

Of course, you can also really crank this kind of effect and create perfect tones for hard rock and metal.

If you want the sound of a cranked valve amp without having noise complaints filed against you, consider using overdrive effects.


A phaser effect creates a set of peaks and troughs in an audio signal and then modulates them. This creates a sense of movement, which can get quite weird if you accentuate it.

Phasers are a great way to add a sense of movement to a tone. Plus, it's a versatile effect. It's just as at home in funk style rhythm playing as it is in screaming heavy metal guitar solos.


Reverb is an effect meant to simulate the sound of playing in a real environment. The great thing is you can simulate some crazy spaces that you could never possibly pull off in the real world. For example, you can easily make it sound like you're playing guitar in a canyon.


With tremolo, the volume signal of your guitar is modulated; imagine the volume knob on your instrument constantly being rolled backwards and forwards. You have the ability to control the speed and the depth of this modulation.


Of course, you should be able to get a vibrato sound using just your guitar and your hands. But using a vibrato effect opens up some interesting possibilities. For example, you can add vibrato to a full, open chord.

Play Around With These Guitar Effects for Great Results

As you can see, we at GT cover just about all the rack-mounted guitar effects available.

Guitar pedals are fun, but they're prone to problems. Dead batteries, loose-fitting power connectors, and broken patch cables can jeopardize a gig. So switch to rack-mounted effects for a set-up you can rely on night after night.

Interested in purchasing GT rack effects? Then follow our Purchase Process now!