Description

Elemental force with sensitivity

At the very first glance, it appears what the new Q subwoofers are designed for. The solid aluminum diecast baskets with diamond cut as well as the massive triple ferrite magnet systems clearly signalize that these subwoofers really mean it. The extremely stiff, hand-scooped cones and oversized voice coils with enormous winding height are literally predestinated to turn incredible volumes of air into deep bass sounds.

Yet sheer power alone is not sufficient – numerous sophisticated technical details together with a smart mix of materials assure highest precision and detailed bass reproduction which will satisfy even most demanding music enthusiasts.

These subwoofers form a perfect symbiosis of maximum sound pressure and state-of-the-art sound quality in a new dimension.

Extremely rigid non-pressed paper cone for maximum stiffness
Wide low-loss foam surround for maximum cone excursions
Concave PP dustcap with embossed HELIX logo
2 x 2 Ohms impedance allows most flexible configuration
High-temperature dual voice coil with enormous winding height for outstanding linear excursion
Rock-solid diecast basket with diamond cut
Removable rubber gasket
Rugged butyl magnet cover with HELIX lettering for perfect magnet protection
Solid push terminals for large wire gauge
Extremely powerful, 9 x ventilated triple ferrite magnet system for highest magnetic flux linearity

Power RMS / max. P 750 / 1,500 Watts
Impedance Z 2 x 2 Ω
DC resistance Re 2 x 1.95 Ω
Resonance frequency Fs 35 Hz
Mechanical Q factor Qms 4.17
Electrical Q factor Qes 0.42
Total Q factor Qts 0.38
Compliance Cms 99 μm/N
Equivalent air volume Vas 13.8 L
Force factor B*I 21.5 Tm
Efficiency 1 W / 1 m SPL 85.0 dB
Cone area Sd 333 cm²
Moving mass Mms 220 g
Cone material Non-pressed paper cone
Mechanical resistance Rms 11.9 kg/s
Voice coil diameter ø 63.5 mm
Voice coil winding height 40 mm
Max. linear excursion Xmax +/- 14.0 mm
Outer diameter ø 274 mm / 10.79″
Installation diameter ø 234 mm / 9.21″
Installation depth 163 mm / 6.42″

Recommended enclosure volumes
Sealed box
Net volume 15 L
Lower limiting frequency (-3dB) 52 Hz

Vented box
Net volume 30 L
Port diameter ø 80 mm / 3.15″
Port area 50 cm²
Port length 25 cm / 9.84″
Port tuning frequency Fb 38 Hz
Lower limiting frequency (-3dB) 39 Hz