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Lex Support

Lex Usage

Why is there no Mix control on Lex Rotary?

We know that there are some out there that want to emulate David Gilmour’s unique Leslie sound, in which he ran his signal to both a rotary speaker and a regular guitar amp. You might be wondering why we did not add a Mix control to our Lex Rotary pedal. Wouldn’t this allow you to achieve the sound David achieved with his setup? Actually, the answer is no.

The problem is that there’s a big difference between running two physical amps (one dry and one ‘Leslie’d’) versus blending a dry signal with a Leslie signal electronically and running the summed signal through one amp. The electronically summed signal will have interferences that don’t happen with two physical amps.

A simple example is to send the same signal to two amps, but one is out of phase with the other. It may sound funny and make you feel dizzy, but you will still certainly hear something. If you combine two out-of-phase signal electronically and send it to one amplifier—you will hear nothing at all! So we don’t feel a wet/dry Mix or blend control would lead to a satisfying experience in this case. You’re actually better off with two separate amps and a Y-cable if you’d like to achieve this sound.



What expression pedal can I use?

We have tested the Moog EP-2, Roland EV-5, Mission Engineering EP-1, and M-Audio EX-P, and they will all work with our pedals to varying degees. (There may be others but we haven’t tested them yet.)

We recommend using expression pedals that have a minimum 25k ohm potentiometer such as as the Mission Engineering EP-25k.  For best results to access the full sweep of the parameter range, we recommend an expression pedal that has a 100k ohm or higher potentiometer such as the Boss FV-500H which has a high impedance pot.

Will my secondary function settings be saved even after I power my pedal down?

Yes. Once you adjust the secondary function settings on your Strymon pedal they will not change after powering down your pedal until you manually change them again.

What is the difference between Lex and Lex mono input?

Based on customer feedback, in May 2012 we introduced an updated Lex design that includes an internal jumper allowing for selectable TRS stereo input, as well as non-click footswitches. Lex mono input (now discontinued) was manufactured before May 2012 and includes a mono input.

Lex has:
– Serial number higher than S12-50000
– Non-click footswitches
– Internal jumper allowing for selectable TRS stereo input (more info here)

Lex mono input (discontinued) has:
– Serial number lower than S12-50000
– Footswitches with an audible click when pressed
– No internal jumper

How do I enable the TRS stereo input on Lex?

Based on customer feedback, in May 2012 we introduced an updated Lex design that includes an internal jumper allowing for selectable TRS stereo input, as well as non-click footswitches. This FAQ does not apply to Lex mono input (now discontinued), which was manufactured before May 2012 and includes a mono input. Read this FAQ to determine which pedal you have.

The input can be set for either mono input or TRS stereo input. The pedal ships in mono configuration from the factory. Here’s how to adjust this configuration.

Remove the back cover of your pedal.

On the left side of the circuit board, you’ll see a jumper that can be set in two positions. Place the jumper on the left 2 pins for TRS stereo input. Place the jumper on the right 2 pins for mono input.

TRS stereo input - mono input

In order to use the TRS stereo input, you’ll need a TRS stereo input adapter like the one shown below. You can purchase one here.

TRS cable

Can my Lex mono input be modded with silent switches and converted to Lex (TRS stereo)?

Sorry, no. There isn’t any way to convert your Lex mono input to Lex (TRS stereo) specs or upgrade to the silent type switches.

The designs are different and parts are not interchangeable.

How does the TRS stereo input get processed?

With the new TRS stereo input on El Capistan, Brigadier, and Lex, the L and R channels are summed together and fed into the effect, where it undergoes identical processing as would a mono input. On El Capistan and Brigadier, the dry portion of the output signal retains its stereo image at the output through the stereo mix control. With Lex, the stereo image is created through the rotating speaker process.

The big advantage of stereo input lies in the ability to place the pedal anywhere within a stereo rig and retain the stereo I/O throughout. All of our pedals continue to make use of the entire processing power of the SHARC DSP chip as they always have.

How do I assign the EXP input on my Lex?

This info can be found on Page 5 in the Lex user manual.

The EXP pedal jack input can be used for either an Expression Pedal, an External Speed Switch, or an external Favorite switch. Lex is set up to use an Expression pedal by default. There is a quick power-up procedure to tell your Lex how to assign the EXP jack. You only have to do this once.

  • Power down your pedal.
  • While holding both TAP and BYPASS at power up, and turn the FAST ROTOR SPEED KNOB:
    • Fully counterclockwise for Expression pedal
    • Fully clockwise for Favorite switch to save a favorite setting
    • To the middle position for external speed switch
  • Let go of TAP and BYPASS once you have made your selection.

If you’re using the EXP jack for a Favorite switch:

  • Press and hold BYPASS to save a new favorite setting.
  • Press FAVORITE to engage your favorite setting.

How do I set up my Strymon pedal to use a TAP Favorite switch?

NOTE: The EXP jack is set up to use an Expression pedal by default.

To set up your Strymon pedal to use a TAP Favorite switch, follow the steps below.

1. Power down your Strymon pedal.

2. Configure pedal and power on.

Pedals with toggle Switches – Set both toggle switches to the MIDDLE position. While holding down both footswitches, power up your pedal.

Pedals without toggle switches – While holding both footswitches, power up your pedal, Continue holding footswitches and turn the topmost left knob fully clockwise.

3. Let go of TAP and BYPASS.

Your pedal has now been configured to use the Favorite Switch.
– Press FAVORITE to engage your favorite setting.
– Press and hold BYPASS to save a new favorite settings.


Do Strymon pedals include power supplies?

All Strymon pedals sold within North America (except OB.1) include a 9VDC 660mA power supply. OB.1 includes a 9V battery.

What are the power supply requirements?

We recommend a power supply that provides 9VDC (center negative) at a minimum of 250mA.

Do not subject your Strymon pedal to any voltage above 9V. Doing so will damage your pedal and void your warranty.

Can I use a Voodoo Labs Pedal Power 2+?

All pedals (except TimeLine):

You can, but please take these precautions:

First, make sure the dip switch on the bottom of your Pedal Power is set to the NORMAL (9V) position. Do not subject your Strymon pedal to any voltage above 9V. Doing so will damage your pedal and void your warranty.

El Capistan, Brigadier, blueSky, Deco, Lex, Ola, and Orbit, require a minimum of 250mA. You will need to use output 5 or 6 on your Pedal Power 2+.  OB.1 requires 20mA, so you can use outlets 1 through 4.  Make sure to use the Pedal Power 2+, the original Pedal Power 2 does not provide enough current (mA).

A better solution would be to use the Voodoo Lab Pedal Power Digital power supply which offers several 9V DC high current output outlets.

Can I use a daisy chain power supply?

We don’t recommend using daisy chain power supplies. Ground loops are commonly caused when using a daisy chain power cable to power multiple pedals. This creates a ground loop between every pedal in the daisy chain. Ground loops allow stray magnetic fields to introduce hum into your signal path.

If the only type of effect you use is distortion you may not have (or hear) the ill effects. But, if you have modulation and delay pedals the likelihood of ground loops wreaking havoc on your signal is high.

If you don’t plan on using your Strymon power supply, we recommend an isolated power supply. The Voodoo Labs Pedal Power Digital and Iso-5 are some examples of cost effective, multiple output isolated power supplies. An isolated supply works by using a transformer (or multiple transformers) to keep every power outlet completely electrically isolated.

Lex Specs

Where are Strymon pedals made?

All Strymon products are crafted with love in the USA, right in the Los Angeles, California area.

What are the dimensions of my pedal?

blueSky, Brigadier, Deco, El Capistan, Flint, Lex, OB.1, Ola, and Orbit are all 4.5″ deep x 4″ wide x 1.75″ tall.

General Product Info

Do your DSP-driven pedals handle both instrument and line levels?

Yes, they feature high-impedance inputs and accept up to +8dBu, instrument or line level.


What is the Strymon product warranty?

Strymon Non-Transferrable Limited Warranty

Strymon warrants the product to be free from defects in material and workmanship for a period of one (1) year from the original date of purchase. If the product fails within the warranty period, Strymon will repair or, at our discretion, replace the product at no cost to the original purchaser.

This warranty covers defects in manufacturing discovered while using this product as recommended by Strymon. This warranty does not cover loss or theft, nor does the coverage extend to damage caused by misuse, abuse, unauthorized modification, improper storage, lightning, or natural disasters. Damage caused by any of the above circumstances may result in a non-warranty repair fee. 

Limits of Liability
In the case of malfunction, the purchaser’s sole recourse shall be repair or replacement, as described in the preceding paragraphs. Strymon will not be held liable to any party for damages that result from the failure of this product. Damages excluded include, but are not limited to, the following: lost profits, lost savings, damage to other equipment, and incidental or consequential damages arising from the use, or inability to use this product. In no event will Strymon be liable for more than the amount of the purchase price, not to exceed the current retail price of the product. Strymon disclaims any other warranties, express or implied. By using the product, the user accepts all terms herein.

How to Obtain Service Under this Warranty
For North American customers: Contact Strymon through our website at http://www.strymon.net/support for Return Authorization and information. Proof of original ownership may be required in the form of a purchase receipt.

For International Customers: Contact the Strymon dealer from which the product was purchased from in order to arrange warranty repair service.

Where is my warranty valid?

Your warranty is valid in the region of purchase. For example, if you buy your product in Japan, any service-related issues will need to be handled in Japan. Only products purchased in the United States can be repaired in the United States.


Email Support

Please direct all support inquiries to our support email:

We try our very best to respond to requests within 1 business day.


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