M-Pulse® 600 Simul-State Bass Amplifier

M-Pulse® 600 Simul-State Bass Amplifier

Establishing a new paradigm of bass performance, the M-Pulse® line combines the best of musical old-world tube technology with modern high-power portability.

The M-Pulse® line combines the best of musical old-world tube technology with modern high-power portability. Available in 600 and 360 watt rack versions, these handmade beauties sport our soulful sounding Simul-State™ tube driven MOS FET power. This is our proprietary hybrid technology that uses vacuum tubes from the Input jack right up to, and including, the driver for the custom MOS FETs. And this dynamic team produces stunning musical power.

An all-new tube pre-amp feeds the rotary tone controls starting with active Bass and Treble and including a warm passive Mid --this is your foundation. From there, craft your own seductive world of bass using the five-band parametric EQ that lets you roam for tone unbridled between 30 Hz and 12kHz. Dynamics are manipulated via an all-new on-board Compressor featuring Threshold and Ratio controls.

Our proprietary Solo™ function provides a second master volume for a footswitchable boost when it’s spot light time. Or use Solo as compensation for extreme EQ or Compressor settings.

M-Pulse amplifiers provide a toneful balanced Direct Out featuring a three-pin XLR with selectable Pre/Post options that let you choose between the huge warmth of your stage sound or....the stripped focus of your bass when interfacing to live or recording consoles. A Slave Output and Level control allows linking to other power amps, including another M-Pulse for coliseum venues or provides a post- signal output to drive outboard processing.

So if you’re on the search for tone and want to revolutionize your style, check out the M-Pulse Simul-State Bass Amplifiers. Close your eyes, open your ears…and trust your musical M-Pulse.


  • Handcrafted in Petaluma, California
  • 600 Watts @ 4 Ohms (320 @ 8), Simul-State™ Power / 8 Tube Driven Power MOSFET, 2x12AX7
  • Active/Passive Input Switch
  • 4 Stage Vacuum Tube Preamplifier with Gain, Active Bass & Treble, Passive Mid and Footswitchable 5-Band Semi Parametric EQ that provides 15db of cut or boost from 30Hz to 12KHz
  • Footswitchable Compressor with Independent Threshold and Ratio Controls
  • Main Output Level Control
  • Footswitchable Solo Level Control – Patent 6,724,897
  • Footswitchable Parallel FX Loop with Mix Control
  • Balanced Line Out with Pre/Post Switch
  • Bass Tuner Output w/Footswitchable Mute
  • 2 - Speakon & 2 - 1/4” Speaker Output Jacks
  • Slave Out w/Level Control Fan Cooled
  • 5 Button Footswitch (Parametric EQ, Compressor, Solo, FX Loop & Mute)
    2 Space Rackmount
    M-Pulse 600 Head
    M-Pulse 600 2x12 Combo

Download the User Manual for complete details on this product.