The 18RBX100-4 from B&C Speakers has been designed to set the standard for cost-effective high output subwoofers. Using a 1" long/4" diameter copper wire voice coil with high thermal capability, and a ventilated magnet assembly this driver exhibits low power compression with impressive power handling. A very low distortion figure results from using a double spider design and dual demodulation rings in the magnetic path. The 18RBX100-4 also has a proprietary water-proof cone treatment that makes this driver suitable for use in outdoor situations.
Specifications
- Nominal Diameter18"
- Power Handling (RMS)1,000 Watts
- Power Handling (max)2,000 Watts
- Impedance4 ohms
- Frequency Response35 to 1,000 Hz
- Sensitivity97 dB 1W/1m
- Voice Coil Diameter4"
Thiele-Small Parameters
- Resonant Frequency (Fs)42 Hz
- DC Resistance (Re)3.5 ohms
- Voice Coil Inductance (Le)0.41 mH
- Mechanical Q (Qms)8.0
- Electromagnetic Q (Qes)0.41
- Total Q (Qts)0.40
- Compliance Equivalent Volume (Vas)4.8 ft.³
- BL Product (BL)22 Tm
- Diaphragm Mass Inc. Airload (Mms)210g
- Maximum Linear Excursion (Xmax)10 mm
- Surface Area of Cone (Sd)189.88 cm²
Materials of Construction
- Cone MaterialTreated Paper
- Surround MaterialCloth
- Voice Coil Wire MaterialCopper
- Voice Coil FormerFiberglass
- Basket / Frame MaterialCast Aluminum
- Magnet MaterialFerrite
Mounting Information
- Overall Outside Diameter18.11"
- Baffle Cutout Diameter16.61"
- Depth7.87"
- Bolt Circle Diameter17.32"
- # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
- Sealed Volume1.25 ft.³
- Sealed F390 Hz
- Vented Volume3.67 ft.³
- Vented F347 Hz
