IMG Stageline SP-38A/500BS PA Subwoofer 1,500W Max. 8ohm 15"

Subwoofer with extra low limit frequency, but at the same time of optimum high efficiency, mechanically ultra-stable due to double centering spiders.

The most popular sized bass speaker with double centering, high efficiency despite extra low possible limit frequency. The long excursion allows the stable mechanical conversion of the extra high power capability. Suitable for any professional applications, from discotheque to stage as well as mobile operation, as the required volume is still quite small.

HiFi-Selbstbau, Online magazine 2008

"The SP-38A/500BS from IMG Stage Line is a classic 38cm bass speaker of an appealing design with a high efficiency (96.5dB/2.83V/m), linear frequency response up to 2kHz, low K3+ and practice-orientated TSP parameters."

Technical Specification

• Impedance (Z) 8ohm
• Resonant frequency (fs) 37Hz
• Max. frequency range f3-3,500Hz
• Rec. crossover freq. (fmax.) 3,500Hz
• Music power 1,500WMAX
• Power rating (P) 500WRMS
• SPL (1W/1m) 97dB
• Suspension compl. (Cms) 0.16mm/N
• Moving mass (Mms) 107g
• Mech. resistance (Rms) 5.85kg/s
• Mech. Q factor (Qms) 4.37
• Electr. Q factor (Qes) 0.38
• Total Q factor (Qts) 0.35
• Equivalent volume (Vas) 168 l
• DC resistance (Re) 6ohm
• Voice coil induct. (Le) 1.6mH
• Voice coil diameter 100mm
• Voice coil former Kapton
• Voice coil winding height 20mm
• Air gap height 8mm
• Linear excursion (XMAX) ±6mm
• Eff. cone area (Sd) 855cm2
• Volume displacement (Vd) 513cm3
• Force factor (BxL) 18.25Tm
• Reference efficiency (No) 2.3%
• Magnet diameter 222mm
• Magnet weight 2.6kg
• Mounting cutout Ø 355mm
• Mounting depth 160mm
• Dimensions Ø 385mm
• Weight 9.9kg
• Rec. net cabinet volume Closed 65 l
• Bass-reflex > 90 l