JMK Audio Products
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.

GTR Input Specs:   Max gain 43 dB
                             Noise:  -76.5dB @ Max Gain, 20 to 20KHz
Distortion: @ 40 Hz +15dB Out  .025%
@ 1.5 KHz +20dB Out  .005%
@ 15 KHz +10dB Out .007%
Bass Input Specs:   Max. Gain  30dB
Noise:  @ Max Gain -78.5dB, 20 to 20KHz Filter
Input Impedance: @ 1KHz  approx. 135K Ohms
Max Output: +22dB,  output level is limited by the +-16.5V supply. 

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

  • JM-120: 500 Series Direct Instrument Pre-amp
    NO POWER SUPPLY
  • Price:   $325.00
  •   S/H:     $14.50
  • Total:   $339.50
JM-120

Comments on the JM-120:

"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