FX Capacitor – Model 1350

What has your synth been missing all these years?   Effects – damn it!  Oh Yeah!

Finally, a near studio-quality stereo audio effects module for the MU format modular synth crowd – All in just 2 MU width.   So sweet!
Reverbs, echos, pitch shifts, phasers, flangers.  It’s all here waiting for you.


In stock



What has your synth been missing all these years?   Effects – damn it!

At last, an MU module that delivers 15 near studio-quality effects – All in just 2 MU width.   Oh Yeah!  Very sweet!

  1. Reverb 1
  2. Reverb 2
  3. Reverb-Chorus
  4. Reverb-Flange
  5. Reverb-Tremolo
  6. Sci-Fi Shimmer
  7. Space Shimmer
  8. Stavely Springs
  9. Infinite Freeze
  10. Reverse Reverb
  11. Pitch Shift
  12. Pitch-Echo
  13. Flanger
  14. Slocum Phaser
  15. Frequency Shifter

Here’s a PDF with more details:  FX Capacitor Program Descriptions

Select your effect using the Program knob, and the convenient LCD display will show the currently selected effect and it’s parameters.  Up to three parameters (depending on the selected effect) that can be adjusted from the INIT controls on the front panel or voltage control them by using the CV-A, CV-B & CV-C inputs.

The FX Capacitor is built around the awesome Spin Semiconductor FV-1 chip (Spin Semiconductor).  The FV-1’s seven built-in effects are already awesome, but SSL just couldn’t stop there.  Oh no.  We had to add 8 more carefully chosen effects that will expand your sonic palette.

Space Shimmer is the brain-child of Gary Worsham.  Shimmer is a type of reverb that applies upward pitch shifting (usually by octaves) into the  feedback loop for some really ethereal sounds.

Stavely Springs is courtesy of Don Stavely.  Don has figured out how to accurately model some of the original dual spring reverb units from the 1970’s.  They sound great.  If you pulse them, they even “sploing”.  The only thing they can’t do is react to physically kicking your module to shake the springs.

The Flanger and Slocum Phaser have a cool feature that allows the Depth knob and CV input to have manual control when the Speed knob is fully counter-clockwise.  You can also select between 4, 6, 8 or 10 phase stages on the Slocum Phaser.

Some programs have stereo inputs, some are summed L + R to mono before hitting the effects, and some have different effects on the L & R channels.  Play, play, play – and enjoy!

Since effects and feedback settings can conspire to overload the 1350 module, there’s “CLIP” LED on the front panel.  Depending on the signal source, a bit of input attenuation might be required to keep things from getting out of hand.  Here’s a trick you can use to control the input level – Plug your audio input into the FB_IN inputs instead of the SIG_IN.  You can then use the FEEDBACK control as an attenuator.  Cool, huh?

Signal Flow

Be sure to check out our demos tab.



- Program: Selects one of 15 different effects
- INIT-A, INIT-B, INIT-C: Control of the currently selected program parameters. Works with the external CV inputs.
- L & R FEEDBACK: Controls the amount of effect output that is fed back into the input.
- L & R MIX: Controls the blending of dry to effect (wet) at the outputs.


- L & R SIGNAL: Audio inputs to be processed
- CV-A, CV-B, CV-C: External voltage controls over effects parameters. Works with INIT panel controls. Approx. 0 to +5V.
- L & R FB (feedback) IN: External effects feedback loop inputs. Normalled to the adjacent FB OUT.


- 2 Line high contrast Blue LCD Display
- CLIP: Red LED illuminates when the combination of inputs and effects with feedback exceeds recommended levels, thus causing distortion.


- L & R OUT: Effects outputs
- L & R FB (feedback) OUT: Outputs to drive external effects processors. Normalled to the adjacent FB IN.
- Frequency Response: Approx. 20Hz to 15KHz (+/- 1dB)
- Noise: -90dB A-weighted
- Distortion: .05% THD at 1KHz


Synthesizers.com (DOTCOM) 6 pin Molex standard
(Note: Requires = +5vdc)
+5vdc @ 80ma, +15vdc @ 25ma, -15vdc @ 25ma


- Height - 8.75"
- Width - Two Moog Units (MU) - 4.25"
- Depth - 1.5"

Demo Videos


There are no reviews yet

Add a review
You must be logged in to post a review Log In