/// Active Summing Module

“Give me a LEVR strong enough and I’ll move the world.” is the saying. Well, close enough.

The JCF Audio – LEVR is an active summing module for the popular 500 Series format and by drawing from the discrete playbook it expands greatly on the language audio summing.

The LEVR offers an affordable, active, non-exclusive alternative to passive summing users which other solutions do not.

Due to it’s elegant design and low parts count, the LEVR will bring unparalleled musicality and resolution to your bus.


  • Time-proven amplifier blocks
  • Common 500 Series Modular Form Factor
  • High quality capacitors used throughout
  • ~9dB Front Panel Gain Adjust
  • Low Power Consumption
  • Opt. floating output with Cinemag CMOQ-2S
  • Drive and punch of push-pull circuitry with
    the stability of single element inputs.
  • Does not preclude use of passive-to-pre setups
  • Two courtesy parallel front panel inputs
  • 1 year limited warranty


Input Impedance 0 Ohms Balanced
Output Impedance 200 Ohms Balanced
(<50 Ohms with transformer option)
Frequency Response -3dB @ 670kHz and ~ 3Hz
Minimum Recommended Load 600 Ohms or greater
Maximum Output Level +28dBu
Distortion <.01% @ +4dBu, 0.025% @ +28dBu
Noise -79dBu (BW lim 80kHz)
Gain Variable from 0dB to ~+9dB
Power Supply And Connector +/- 16v +/-20ma.
500 Series compatible
15 pin .156″ edge type