Sundown Audio SA Classic 12"
12" (30cm) subwoofer
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Beschreibung
In developing the SA Series, which includes the Sundown Audio SA Classic 12" (30cm) subwoofer, Sundown Audio started with a FEA optimized motor and coil design that allows for 19mm verified one-way Klippel excursion and just over 33mm x-mech. This motor and coil design was then combined with an extremely robust double layer Nomex spider with fully bonded "XL" strands (84 strands), a competition grade SPL paper cone and a strong foam surround. The motor also features a large magnet ID shorting ring (Faraday ring) to reduce distortion caused by inductance and inductance variations over the stroke.
Characteristics
- Xmax = 19mm one-sided at 70% BL
- RMS power = 750 watts
- Ventilated magnetic gap
- Optimized high-speed pole ventilation
- Innovative ventilated high-speed frame spacer ring
- 2.5" voice coil former made of black aluminum for excellent heat dissipation
- high-temperature copper voice coil wire
- Large Aluminum Faraday Ring (Magnet ID)
- Spring-loaded terminals
- Sewn-on "XL" lamella cables to prevent fatigue and failure
- High-strength cast aluminum frame
- Optimized for small, closed and bandpass enclosures
- These features together result in the optimized coil ventilation system.
Technical data
- T/S SPECIFICATIONS SA CLASSIC 12" D2
- RE (Ohm) 4.57
- FS (Hz) 33.71
- VAS (L) 21.21
- Qes 0.58
- Qms 5.34
- Qts 0.52
- Le (mH) 3.40
- BL (NA) 21.64
- Mms (grams) 280
- Cms (uM/N) 79.43
- Sensitivity (dB @ 1w/1m) 83.21
- T/S SPECIFICATIONS SA CLASSIC 12" D4
- RE (Ohm) 7.07
- FS (Hz) 33.96
- VAS (L) 24.63
- Qes 0.55
- Qms 5.15
- Qts 0.49
- Le (mH) 4.84
- BL (NA) 25.67
- Mms (grams) 237
- Cms (uM/N) 92.27
- Sensitivity (dB @ 1w/1m) 84.22
- Sealed housing 28 liters
- bass reflex enclosure 50 liters
- Recommended tuning 35Hz
- Recommended connection area 170cm²
- depth 16.5cm
- outer diameter 32cm
- cutout 28.2cm
