The Perfect Companion for Your Block-series Amp The Quilter Labs BlockDock 12HD is the perfect companion for your Block-series amp. This compact extension cabinet is loaded with a Celestion BN12-300S speaker, which delivers top-notch sound. This workhorse cab offers 300 watts of power handling — sufficient for the whole range of Quilter's 101 and Block-series amplifiers. The BlockDock 12HD is built from rugged 15mm Baltic birch with a durable ballistic nylon cover and bulletproof bracing and reinforcement, yet it weighs in at less than 20 lbs. If you need an extension cab for your Quilter block-style amp, GearNuts recommends the BlockDock 12HD.It doesn't get any lighter than this Stating that the Quilter BlockDock 12HD is lightweight is a grand understatement. At less than 20 lbs., it's so light your toddler could knock it over — one-handed! There's nothing lightweight about its build quality, however. Rugged 15mm Baltic birch construction. An