Markaudio Alpair-11MS Gold Full-range Woofer

The Markaudio Alpair-11MS Gold is a 6.5-inch full-range broadband subwoofer that delivers remarkably natural, coherent sound from a single driver, eliminating the complexity of multi-way crossover systems. This gold-coned transducer is the perfect choice for audiophiles and DIY enthusiasts building compact hi-fi speakers, desktop monitors, or high-quality portable enclosures where space is at a premium but sonic performance cannot be compromised. Its wideband design makes it equally suited to open-baffle projects or small vented cabinets, offering a seamless listening experience across the frequency range.

Technically, the Alpair-11MS Gold boasts an impedance of 8 ohms with a DC resistance of 7.2 ohms, and a sensitivity of 88.1 dB SPL at 1 metre with 2.83V input. The driver’s low total Q (Qts) of 0.34, combined with a mechanical Q (Qms) of 2.22 and an electromagnetic Q (Qes) of 0.41, ensures tight, controlled bass response. With a maximum linear excursion (Xmax) of 8 mm and a power handling capacity of 35 watts, it can produce impressive output for its size. The nominal diameter is 127 mm, with a cut-out diameter of 144 mm and a mounting depth of just 66 mm, making installation straightforward. Five mounting holes secure the driver, which measures 171.5 mm overall. This Markaudio Alpair series driver represents a superb blend of engineering and musicality for discerning builders.