Full Details

1x12 Royal Atlantic™ 27 Cabinet

The 1x12 Royal Atlantic™ 27 Cabinet looks like a 2x12 at first glance, but the similarly sized cabinet loaded with only one of MESA’s® custom Celestion C90 speakers provides some unique advantages, tonally and transport-wise. The Royal Atlantic 27’s rear panel was specially designed to maximize full, wide bass projection while also accenting clear midrange detail and open-back, high-end sparkle via the semi-open design. Guitar cabinets with a single 12” speaker offer the amazing and sometimes elusive ‘openness’ and transparency – a singing responsiveness from the cone of the speaker – that 2x12 cabinets sometimes lack due to increased punch. The physical width of the Royal Atlantic 27 combined with the 1x12 voice and perfectly tuned back panel generates a huge sonic footprint and tonal magic with any amplifier driving it.

You simply won’t find a better cabinet. ALL MESA® ENCLOSURES are made using the finest Void-free, Marine Grade Baltic Birch. Super strong rabbet corners are glued and nailed and speaker baffles are fitted with superior dado joint construction and braced. Grilles are wrapped around a separate grille board, not the baffle board. Grille material is made of strong twisted jute dipped in a special coating that filters top end for a sweeter response.

General Information

Build Location
Cabinet Material Marine Grade, Baltic Birch
Standard Finish Options Black Taurus Vinyl with choice of Gray & Black Weave or Black Jute Grille
Custom Finish Options See Custom Finish Gallery

Features and Specifications

Style/Type Semi-Open Back
Speaker(s) & Mounting Position Celestion C90 / Rear Mounted
Wattage 90 Watts
Mono or Mono + Stereo Input Mono
Cabinet Impedance 8 Ohm
Casters Optional (sold separately) - Track-Loc™ Removable Casters
Additional Features Paralleled Mono Output


Slip Cover Included - Fitted Slip Cover

Weight And Dimensions

Weight 40 Lbs.
Height 18"
Width 26 3/4"
Depth 11 3/4"

DISCLAIMER: In the interest of continuous improvement, all specifications are subject to change without notice. To guarantee correct fit on custom ordered cases & covers, MESA recommends that customers make personal measurements of their product, after they have been received. MESA provides these measurements as a general reference only, without guarantee or liability.