|Impedance (Z)||2 x 4Ω|
|Resonant frequency (fs)||20Hz|
|Max. frequency range||f3-1,500Hz|
|Rec. crossover freq. (fmax.)||400Hz|
|Music power||2 x 500WMAX|
|Power rating (P)||2 x 350WRMS|
|Suspension compl. (Cms)||0.22mm/N|
|Moving mass (Mms)||305g|
|Mech. resistance (Rms)||12.7kg/s|
|Mech. Q factor (Qms)||2.97|
|Electr. Q factor (Qes)||0.27|
|Total Q factor (Qts)||0.25|
|Equivalent volume (Vas)||480 l|
|DC resistance (Re)||2 x 3.7Ω/1 x 7.4Ω|
|Voice coil induct. (Le)||2 x 1.1mH/1 x 4.6mH|
|Voice coil diameter||99.3mm|
|Voice coil former||aluminium|
|Voice coil winding height||37.8mm|
|Air gap height||12mm|
|Linear excursion (XMAX)||±12.9mm|
|Eff. cone area (Sd)||1,250cm2|
|Volume displacement (Vd)||1,612.5cm3|
|Force factor (BxL)||32.4Tm|
|Reference efficiency (No)||1.37%|
|Mounting cutout||Ø 425mm|
|Rec. net cabinet volume|
Dual Voice Coil Subwoofer of Highest Power Capability
Incredibly powerful bass reproduction from surprisingly small cabinets. Extensive ventilation of the voice coil. Subwoofer, 2 x 500WMAX, 2 x 4Ω
High-quality inverse cone, gold-plated terminals, diecast basket, extra long excursion, double centering spider, suitable for professional and semiprofessional DJ and PA applications and for car hi-fi and home cinema applications of highest requirements.
"For the sustainable earthquake effect in the home cinema! The SPH-450TC is a legend which unites everything required for a bass speaker: 46cm diameter, 13mm linear excursion in both directions, breath-taking resonance frequency at 24 Hz."
in the Raver cinema building concept
"In our home cinema, it easily outclassed all other existing subwoofers."
"In view of this sound converter designed with an extra long excursion, all other bass speakers introduced in HOBBY HIFI so far simply fade."