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Ultra Portable Performance

Effortless transport for rehearsals and 200 watts of power through the 1x15" speaker allow you to be heard in moderate size venues. Tough vinyl covering protected with metal corners provide lasting protection.

Tone Shaping

Four band active EQ and contour based on the legendary 800RB provide extensive tone shaping capability.

Custom Speaker Design

Speaker designed and manufactured by GK in the U.S.A.


Balanced DI with pre/post switch, aux in and headphone output for silent practice plus "chain out" to drive GK's MBP powered enclosures. Pair with the 115 MBP.

Critically Damped

Our design team tuned the ports for optimum performance while coupled to the cabinets specific designed speaker.  The ports coupled with a specific jute blend of damping material provides the right amount of damping at the right frequencies, for optimum response.

GK MB 115-II 200W 1x15" U. L. Combo

SKU: 303-0520-C

Output Power:

  • 200W@4 Ohms

Input Section:
Maximum Input Level

  • 0.6V rms

Input Impedance

  • 1M Ohms

Direct Output Impedance

  • 500 Ohms

Aux-in Input Impedance

  • 100K Ohms


  • +/-10dB@60Hz


  • +6dB/-10dB@250Hz


  • +6dB/-10dB@1KHz


  • +/-14dB @ 7KHz

Voicing Filters:

  • +2dB@50Hz/-10dB@500Hz/
  •  +3dB @ 7 KHz


  • -90 dB reference to 200W, ‘A’ weighted

Dimensions (HxWxD):

  • 23”x19”x14.5”


  • 38 lbs.
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