GZPW Reference 250 25 cm / 10″ high end subwoofer Reference Series Pure High-End Sound Quality The EISA awarded REFERENCE components obtain the highest attention and care during a long lasting development.Without any compromise, each component is selected from the best ones available on the market.Highest production quality and the most accurate supervision of every single part ensure not less than perfect performance, ultimate sound quality and workmanship for the highest demanding customer.Emphasizing the high-end status of the REFERENCE products, each amplifier, speaker and subwoofer is finally certified by GROUND ZERO´s in-house quality department and delivered in a classy, logo-branded wooden box handmade in Germany. 500 Watts RMS 10″ high end sound quality subwoofer with aluminum cast basket and coated paper cone 10″ high end subwoofer Klippel® optimized 3-layer sandwich cone Leightweight rubber surround Solid aluminum cast basket 50 mm / 2″ copper voice coil 2-layer Bimax spider Coated paper dust cap Model High-End SQ subwoofer Diameter 25 cm / 10″ Power Handling (RMS) 500 Watts Impedance 2x 2 Ohms Efficiency 87 dB Power recommendation 300 – 600 Watts Voice coil 50 mm / 2″ copper Max. Excursion (Xmax) 40 mm / 1.57″ Mounting depth 128 mm / 5.04″ Resonance frequency (Fs) 31 Hz Overall quality (Qts) 0.53 Equiv. air volume (Vas) 31.47 L / 1.11 cu.ft.
