Accuton S220-6-221 Woofer

The Accuton S220-6-221 8.5-inch Sandwich Woofer represents a pinnacle of engineering for audiophiles and custom loudspeaker designers who demand uncompromising accuracy. This bass, mid-bass, and subwoofer driver is crafted to deliver exceptionally clean, low-distortion reproduction across the critical lower frequencies, making it an ideal choice for high-end two-way monitors, three-way systems, or dedicated subwoofer applications where clarity and speed are paramount.

Engineered with Accuton’s renowned sandwich cone technology, the diaphragm offers outstanding rigidity while remaining lightweight, effectively suppressing breakup modes and ensuring a pure, pistonic motion. Key technical specifications underline its performance: a low resonance frequency (Fs) of 22 Hz, a total Q factor (Qts) of 0.37, and a maximum linear excursion (Xmax) of 5 mm. The 38 mm voice coil and 5.9 ohm DC resistance (Re) contribute to excellent power handling and control, while the sensitivity of 88 dB (SPL 1m/2.83V) ensures efficient operation. With a Vas of 112.9 litres and a mechanical Q (Qms) of 5.73, this driver is well-suited to sealed or vented enclosures, offering designers flexibility to achieve deep, articulate bass with minimal coloration.

This woofer is a superb choice for those seeking reference-level performance in bespoke audio projects.