Mesa/Boogie Road King 4x12" 300-watt Angled Extension Cabinet

300-watt, 4/8-ohm, 4 x 12" Convertable-back Cabinet with 2x Celestion Vintage 30 and 2x Celestion Custom 90 Speakers
Write review Item ID: RoadKCab412SL
Mesa/Boogie Road King 4x12
Mesa/Boogie Road King 4x12
Special Order
Special-ordered from Mesa/Boogie and usually arrives to you within 2-4 weeks. Please note: special orders cannot be canceled or returned.
Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.

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Mesa/Boogie Road King 4x12" 300-watt Angled Extension Cabinet
Special Order

Get Open- and Closed-back Cabinet Performance from One Cab!

The Mesa/Boogie 4 x 12" Road King Slant Cabinet helps you make the most out of your guitar rig's sound while providing unprecedented tonal flexibility. Using Mesa's Dual Cabinet design, the 4 x 12" Road King Slant Cabinet lets you choose between an open-back (left) and closed-back (right) side, or you can combine both sides for a stellar-sounding blend. It's wired for mono or stereo operation, giving you maximum flexibility. It's also made to work perfectly with the Road King amp's cabinet switcher. Able to handle up to 300 watts, the road-ready 4 x 12" Road King Slant Cabinet is built to take whatever you dish out.

Mesa/Boogie 4x12 Road King Slant Cabinet at a Glance:
  • Two cabs in one
  • Two different speaker configurations
  • The best of both worlds

Two cabs in one
Perfectly matched to the built-in cabinet switcher found on Mesa/Boogie's landmark Road King Amplifier, Road King cabinets provide a new level of performance and convenience through the use of a new and innovative Dual Cabinet design. This new design features both a tuned open-back side and a sealed closed-back side, each of which may be used independently or combined.

Two different speaker configurations
Loaded with two 12" C90 speakers on the open-back side, the 4 x 12" Road King Slant Cabinet gives you the detailed clean tones you crave, while two 12" V30 speakers sit in the sealed section. Used independently, the two sides function as different cabinets with different tonalities - a very handy setup! Combine the two sides and you've got a 4 x 12" cab that offers the best of both worlds from one package.

The best of both worlds
Want dimensional, shimmering cleans that envelope the stage? How about tight, focused lows that seem to leap out of the cabinet? The 4 x 12" Road King Slant Cabinet gives you both! Clean tones and lower-gain textures shimmer and sparkle with beauty from the added spaciousness and presence of the Road King Cabinet's tuned open back. Medium- to high-gain tones pack maximum authoritative power and punch when driven through the King's sealed closed-back side.

Mesa/Boogie's Warranty: The Best in the Business!

Your new Mesa/Boogie amp is protected by Mesa/Boogie's transferable warranty: five years on
the electronics, three years for speakers, and six months for tubes.

Mesa/Boogie 4 x 12" Road King Slant Cabinet

  • Dual Cabinet design
  • Open-back side features 2 x C90 speakers at 180 watts
  • Closed-back side features 2 x V30 speakers at 120 watts
  • 300 watts (left and right sides combined)
  • Wired for mono or stereo
  • Slant cabinet
  • Marine-grade baltic birch cabinet
  • Black Taurus vinyl covering
  • Black twisted jute grille
  • Black piping
  • Trak-Loc removable casters
  • Slipcover included
  • Important Notice for International Customers: Mesa/Boogie products sold by Sweetwater are intended for use within the United States. We are unable to ship any Mesa/Boogie products outside of the US.
The Mesa/Boogie 4 x 12" Road King Slant Cabinet puts two great cabinet designs in one road-ready enclosure!

What Does "Special Order" Mean?

A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide — call (800) 222-4700 for assistance!

Additional Media

Guitar Amp Buying Guide

Tech Specs

Configuration 4 x 12"
Speakers 2 x 12" Vintage 30, 2 x 12" C90
Power Handling 300W
Impedance 8 ohms (Stereo), 4 ohms (Mono)
Cabinet Type Slant
Open/Closed Back Open
Construction Material Birch
Mono/Stereo Mono, Stereo
Inputs 3 x 1/4"
Height 32.9"
Width 30.1"
Depth 14.25"
Weight 109 lbs.
Manufacturer Part Number 0.412RK.SL.BB.FC

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See also: Amp Cabinets, Mesa/Boogie, Mesa/Boogie Guitar Amp Cabinets