Hertz SPL Show SS 12 D2 - 12-inch SPL Subwoofer with 1000 W RMS
The SPL Show SS 12 D2 is a 30 cm subwoofer designed for high sound pressure levels and demanding applications. It combines a 75 mm dual voice coil (2+2 Ohm), a robust ferrite magnet assembly, and sophisticated thermal management. This ensures stable performance in everyday use and provides ample reserves for DB events. The progressive double-layer spider, multi-layer foam surround, and reinforced lead wires are designed for large excursions and continuous stress. At Carhifi.shop, this provides a clear solution when controlled sound pressure is required from a 12-inch driver.
Technical Highlights
- 75 mm dual voice coil (2+2 Ohm), 4-layer wound on a ventilated former
- Power handling: 1000 W RMS, 2000 W Peak
- Progressive double-layer spider for consistent performance over time
- Multi-layer foam surround for high linear excursion
- Large ferrite magnet assembly for control and efficiency
- 12 AWG nickel-plated high-current push terminals
- Non-pressed paper cone with cotton fiber for good sensitivity
- Optimized heat dissipation for continuous power handling
Technical Data
- Size: 300 mm (12 inches)
- Power handling (RMS): 1000 W
- Power handling (Peak): 2000 W
- Impedance: 2 + 2 Ohm (Dual Voice Coil)
- Mounting depth: 184 mm
- Voice coil type: Dual
- Voice coil Ă: 75 mm (3 inches)
- Magnet size (W x D x H): 170 x 90 x 40 mm
- Weight: 8.8 kg
- Magnet: Ferrite
- Cone: Non-pressed paper with cotton fiber
- Xmech: 20.7 mm
Electro-acoustic Data
- Eff. cone diameter (D): 253 mm
- Xmax: 15.4 mm
- Re: 0.96 Ohm
- Fs: 36 Hz
- Le: 0.9 mH
- Vas: 24.52 l
- Mms: 282.8 g
- Cms: 0.07 mm/N
- BL: 9.37 T·m
- Qts: 0.64
- Qes: 0.70
- Qms: 7.0
- Sensitivity: 86 dB
Dimensions
- A: 320 mm
- B (Cutout): 283 mm
- C (Mounting depth): 184 mm
- D: 161 mm
Enclosure Recommendations
For compact, controlled bass reproduction, a sealed enclosure is suitable. For maximum sound pressure and higher output in the kick-bass range, a bass-reflex enclosure is recommended.
Sealed Enclosure
- Internal volume (Vb): 35 l (1.24 cu.ft.)
- System resonance (Fc): 47 Hz
- Qtc: 0.83
- External dimensions (W x H x D): 500 x 400 x 270 mm
- Cutout: 283 mm
- Material thickness: 19 mm
Panel cut (Sealed):
- A: 500 x 400 mm â Qty 2
- B: 500 x 232 mm â Qty 2
- C: 362 x 232 mm â Qty 2
Bass-Reflex Enclosure
- Internal volume (Vb): 55 l (1.94 cu.ft.)
- Tuning frequency (Fb): 51 Hz
- External dimensions (W x H x D): 550 x 400 x 380 mm
- Cutout: 283 mm
- Material thickness: 19 mm
- Port: 160 mm inner diameter
- Port length: 300 mm
Panel cut (Reflex):
- A: 550 x 400 mm â Qty 2
- B: 550 x 342 mm â Qty 2
- C: 362 x 342 mm â Qty 2
Installation & Compatibility
- 12-inch format with 283 mm cutout
- Dual 2-ohm coils: flexibly wired to 1 ohm or 4 ohm
- Recommended amplifier power: approx. 800â1200 W RMS at the selected load impedance
- 12 AWG terminals and reinforced lead wires for high currents
- Sealed: precise, compact bass; Reflex: more output and level around the tuning frequency
