QED Reference Subwoofer 40

The QED Subwoofer 40 is designed for low capacitance to improve minute timing errors and maintain rhythm. It uses Complementary Conductor Technology™ and a special jacket to reduce noise and eddy currents.

• The description claims that the subwoofer improves minute timing errors and maintains rhythm.
• The description claims that the subwoofer reduces noise and eddy currents.