Description
The engineers at Quantum Audio have designed this subwoofer from the ground up to shake the ground up. The foam surround along with the die-cast aluminum vented basket allow for maximum excursion while the protective magnet cover gives the woofer a rugged yet stylish appearance.
- 3″ / 76.2mm 4 Layer Aluminum 4 Ohm DVC
- Heavy Gauge Stamped Steel Basket
- High Temperature Voice Coil
- QEMT Aluminum Voice Coil Former
- High-Excursion Foam Surround
- Compressed Paper Cone
- Injection Molded PP Dust Cap
- Proprietary Full Round PVC Gasket
- Heavy Gauge Spring Terminal
PHYSICAL STRUCTURE
| Outside Diameter (A) | 12.44″ (316mm) |
| Cutout Diameter (B) | 10.82″ (275mm) |
| Mounting Depth (C) | 6.49″ (165mm) |
GENERAL SPECIFICATIONS |
|
|---|---|
| Structure | 12″ (30.8cm) Woofer |
| Dynamic Power Handling | 5000 Watts |
| Nominal Power Handling | 1500 Watts |
| Impedance | Dual 4Ω Voice Coil |
PARAMETERS
Resonant Frequency (fs) 40.84Hz
D.C. Voice Coil Resistance (Re) 6.8Ω
Mechanical Quality Factor (Qms) 1.927
Electrical Quality Factor (Qes) 0.752
Total Quality Factor (Qts) 0.541
Mass of Diaphragm/Coil (Mms) 254.973 g
Force Factor (Bl) 24.32
Sound Pressure Level (SPL) 87.5dB
RECOMMENDED ENCLOSURES
| Woofer Cut-out | 10.82″ (274.82mm) |
| Mounting Depth | 6.49″ (164mm) |
| Sealed Box | 1.40 ft3 (39.64L) |
| Vented Box | 2.48 ft3 (70.22L) |
| Port Diameter | 4 in (10.16 cm) |
| Port length | 6″ (15.24 cm) |
| Tuning | 39Hz |
| Dynamic Power | 5000 Watts |
| Nominal Power | 1500 Watts |
WIRING CONFIGURATION
You can change the wiring configuration of your speakers (Series, Parallel and Series / Parallel) to match the impedance loads that maximizes the power output of you amplifier. Wiring the same woofer or multiple woofers in these three different wiring configurations will result in different impedance loads.
Series: Is the method of wiring of alternate positive with negative terminals (string method) (Illustration below)
Parallel: Is the method of wiring where you wire match 2 speaker terminals with positive to positive terminal and negative to negative. (Illustration below)
Series/Parallel: This configuration is a combination of both series and parallel. We recommend series for the terminal and parallel for the leads to amp. (Illustration below)
4 OHM DVC CONFIGURATION
