Premium-built 300W 12” speaker cabinet for electric bass guitar from PowerHouse series that features an array of innovative features and offers an unsurpassed level of musical versatility and player convenience. It features radical aviation style bracing concept borrowed from the aircraft industry: all structural reinforcement is dado-joined and sculpted to form an extremely strong skeleton that reduces weight, increases rigidity and improves structural integrity. An innovative, front-facing, multi-vent Tri-Port porting system that uses individually tuned triangular ports to enhance each part of the bass spectrum. Each port is part of the structure and reinforcement of the cab and speaker baffle in addition to its porting function. A proprietary rear panel interface that provides unprecedented stylistic versatility and gig-friendly convenience includes: three-position switch for selecting the preferred crossover frequency, adjustable L-Pad for blending the right amount of high-frequency driver, resettable horn protection, and standard 6.3mm and high-current SPEAKON locking connectors. The Crossover switch provides three distinct tonal variations: Mesa Boogie’s time-proven, detail-enhancing sweet 5K (Normal) setting; the harmonic-friendly, accent-expanding snap of 4K (Sheen) and the modern, articulate cut of 3K (Bright). This feature, combined with the fine tuning adjustment potential of the premium L-Pad horn attenuator provides players with unrivalled stylistic high-frequency tweeter versatility and performance. A simple, one-touch reset switch provides convenient horn protection. A fitted slip cover is included. Dimensions: 387 x 492 x 467 mm. Weight: 21.8 kg.