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Mesa Boogie M6 Carbine 600 Watt Bass Head

Item: MB2FM6AA

The impressive M6 Carbine 600W Head is a
Trans-Class™ ultra-fast, super-soulful amplifier that has  many bassists reconsidering their tone. The Carbine expands the Mesa Family of Bass amplifiers with an exciting new voice that’s super fast and extremely focused! The output section relies on the same time-proven array of custom designed mosfets used in Mesa's M-Pulse, Big Block and Titan models, but the preamp and driver section are all new, creating a very different feel and attitude.  

Up front, the tube preamp utilizes a standard tone control string of Bass, Mid and Treble to shape the basic sound, but the shaping power doesn’t stop there. There is a PULL DEEP feature found on the Bass control that keeps the low end tight and articulate when pushed in or, enhances the sub-lows and adds super-top air when pulled out.

The CARBINE also features a new VOICE control for instant access to global character changes. Here you’ll find four iconic and distinctively different sounds and a bypass on a 5 position rotary pot that graphically shows you the EQ curve for each. To the left, positions 1 and 2 dip the midrange in two different places giving you two amazing choices for classic round, warm R & B sounds. Turning right past the 12:00 noon FLAT position unveils two variations on the mid-bump theme. Positions 4 & 5 boost adjacent mid regions to create two powerful mid focused sounds that push articulate fingerstyle playing to the forefront of any mix or add the tight drive to Rock.  Great Tone doesn’t get any simpler!

DI LEVEL and MASTER controls make adjusting your playing volume levels quick and easy on stage. The DI LEVEL features both post and pre Tone control options, with post being the default (pushed in) setting and PULL PRE activating the pre setting that bypasses the entire preamp. A TUNER MUTE pull pot is added to the MASTER Output control for silent tuning in live or studio applications. This feature can also be triggered remotely from the Rear Panel Function Switch jack labeled MUTE.

The Rear Panel follows suit with simplicity dictating the layout of the essential features every pro rig should include. Tucked securely between the intake/exhaust vents sit the FUNCTION SWITCH jacks and the SPEAKER OUTPUTS.  The FUNCTION SWITCH ¼” jacks provide switch ports to control the Front Panel VOICE feature and the TUNER MUTE. Connecting any grounding (tip to ground) logic switch here will trigger the desired VOICE setting or the MUTE. This allows settings to be stored under programs in a master external switcher. The SPEAKER OUTPUTS utilize stage ready SPEAKON UNIVERSAL connectors which accommodate both standard ¼” phone type and Nuetrik SPEAKON locking plugs. A SPEAKER IMPEDANCE switch keeps things in the Output section properly matched and allows you to select between 8/4 Ohm loads or switch down to 2 Ohms (CRITICAL when loads of 2 Ohms are used) for full power with these low load settings.

To the right of the air intake vent are the EFFECTS LOOP and DIRECT OUTPUT sections. The DIRECT OUTPUT consists of a standard 3 pin male XLR jack and a ground lift for the circuit to chassis ground connection. The EFFECTS LOOP is in series with the main signal and can be bypassed with the switch located above the SEND jack. The TUNER OUT jack will feed a signal to your outboard tuner and you can use the Front Panel PULL MUTE feature located on the MASTER control to mute the signal for silent tuning.  The MUTE can also be remote triggered by connecting a grounding footswitch to the Rear Panel FUNCTION SWITCH labeled MUTE.

The M6 CARBINE takes all the features you’ll ever need and combines them with a signature new sound that’s fast, accurate, and best of all – easy to dial. And, the tone, oh the tone!

Mesa Boogie M6 Carbine 600 Watt Bass Head Features:

  • Trans-Class™ Power with 8/4 or 2 Ohm Impedance Switch for optimum Power-to-Load Performance
  • 8 Power MOSFET’s, 1x12AX7 Preamp Tube
  • Active/Passive Input Switch
  • Vacuum Tube Preamplifier featuring: Gain, Active Bass w/ Pull Deep, Passive Mids, 5-Position Active Mid-Voicing Switch, Active Treble and Master Volume w/Pull Mute
    Tuner Output
  • FX Loop w/True “Hard” Bypass Switch
  • Balanced XLR Line Out with Ground Lift & Front Panel Level Control with Pre/Post Pull Switch
  • External Switch Jacks for Tuner Mute and Mid-Voices 1, 2, 4 & 5
  • 2 – Combination Speakon -1/4” Speaker Output Jacks
  • Fan Cooled
  • Black Bronco Vinyl
  • Handbuilt in Petaluma, California


  • 600 Watts @ 4 or 2 Ohms (320 @ 8)


  • Slip Cover

Price: $1,499.00

Available for immediate shipping.
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MB2FM6AA - M6 Carbine 600 Watt Bass Head
Price $1,499.00

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