500 Series Modules

JM-115C Compressor

The JM-115C is a Transformer coupled In/Out VCA based compressor using true RMS detecting similar to the DBX 160VU. Compression ratio starts at a very low 1.25:1, for a very small amount of compression, preventing clipping the recorder input but not over compressing.

Like the 160VU the JM-115C is very easy to set up, simply start at a low ratio, set the threshold around +4 to +10dB and output where needed to get the level to tape you need.!

The JM-115C has a very short and direct signal path allowing for very low distortion and very low noise, it’s a very clean transparent compressor. It does not pad the input (reduce level) before compression, allowing maximum dynamic range from your mic pres ect.

Available in either the 500 Series module or the stand alone that will run off the same supply as the JM-130 mic pre.. Each JM-115C is hand wired and tested. 

“The JM 115C is one of the very best compressors I’ve ever used. It helps control the level of the source without changing the sound. Even at more severe compression the sound is the same, very smooth and natural. I really like it on vocals, sounds good on acoustic and electric guitars as well. Now I need a rack full of them!” Johnny Sandlin

Specifications:

• • Maximum Input: @100Hz +32dB With Reduction.

• • Noise:  -98.2dB Below 0dB(.775V) @ unity gain, 20 to 20KHz filter.

• • Distortion:  @15KHz +15dB Out  .015%
                     @ 1.5KHz +15dB out .007%
                     @ 1.5KHz  @10dB reduction  .012%

• • Dynamic range:  >120dB

• • Maximum Output:  +22dB

• • Jensen Input/Output Transformers

• • Current requirements:  +16.5V less than 75mA, -16.5V less than 35mA 
    The JM-115C meets VPR requirements.

JM-120: 500 Series Direct Instrument Pre-amp

Dual Hi-Z input DI Pre Amp, One common Output.
Transformer Balanced Out:  Jensen Transformer            
The Guitar input is specifically designed for Guitar; the input impedance, gain structure and bandwidth are optimum for guitar producing a very clean and quiet signal that is excellent for a DI track and/or for Re-amping.

The Bass/Keyboard input is designed for the higher output of a Bass Guitar or Keyboard and optimized for Bass Guitar.

The JM-120 meets the VPR requirements.
Current draw:  Less than 25 mA

“I’ve played my Modulus Quantum Bass in a lot of rooms through a lot of equipment, but have never been this satisfied with the sound. The clarity and warmth of the JM-120 is there in every pitch and really brought the bass to life!  Thanks and keep up the good work!” — Adam Holton, Memphis

JM-C30: information coming soon