BMS 8C250 8" Coaxial Speaker 2" +1,75" VC, 200 W + 80 W, 95,5 dB, 8/8 Ohm

Specifications:

• Application 2-way Transducer
• Nominal Impedance: 8 or 16 Ohm
• Power handling AES noise: 200 W
• Sensitivity (1 W / 1 m): 93 dB
• Frequency response: 70 - 3000 Hz
• Voice Coil Diameter: 51 (2") mm
• Voice Coil Material: Cu
• Voice Coil Winding Depth: 15 mm
• Magnet Gap Depth: 6.5 mm
• Basket: Cast Aluminum
• Effect. Diaphragm Diameter D 160 mm

Thiele-Small Parameters:

• Resonance Frequency: ( Fs): 79.1 Hz
• DC Resistance: ( Re): 5.40 Ohm
• Mechanical Q Factor: ( Qms): 4.85
• Electrical Q Factor: ( Qes): 0.61
• Total Quality Factor: ( Qts): 0.52
• Equivalent Volume: ( Vas): 10.18 L
• Moving Mass: ( Mms): 0.0183 kg
• Mechanical Complience: ( Cms): 0.18 mm / N
• BL Factor: ( BL): 9.95 Tesla m
• Effective Piston Area: ( Sd): 0.0201 m²
• Max. linear Excursion: ( Xmax): +/- 4.25 mm

High Frequency:

• Nominal Impedance: 16 Ohm
• Power Handling AES: 80 W
• Peak Power: 300 W
• Sensitivity (1 W / 1 m): 109 dB
• Frequency Range: 1000 - 20000 Hz
• Recommended Crossover: 1500 Hz
• Voice Coil Diameter: 44.4 (1.75") mm
• Magnet Material: Ceramic
• Flux Density 1.8 T
• Voice Coil Material: Copper Clad Aluminium (2 Layers in- and outside of the VC)
• Voice Coil Former: Kapton TM
• Diaphragm Material: Polyester

Mounting Information:

• Overall Diameter: 205 mm
• Mounting Holes Diameter: 4 x (6 x 6.5) mm
• Bolt Circle Diameter: 196 mm
• Baffle cut-out Diameter: 182 mm
• Overall depth: 111 mm
• Net Weight: 3 kg

Celestion CF1830e 18" 700 watt Subwoofer 8ohm Ferrite Subwoofer 8ohm X2 PAIR PACK

The Celestion CF1830e is a versatile ferrite magnet subwoofer suitable for reflex, scoop or horn loaded use.

18" ferrite magnet, cast aluminium chassis LF driver delivering 700Wrms (AES Standard) power handling and 94dB sensitivity

3" high temperature, multi- layer voice coil for greater motor force

FEA optimized magnet assembly delivers highly symmetrical cone - movement, leading to exceptionally low harmonic distortion

Balanced Airflow Venting (BAV) on the front-plate increases airflow to provide enhanced cooling
Dual Magnet Motor (DMM) incorporates a secondary magnet used to increase overal motor force (Bl) without the need for any additional increase in magnet size

"Multi-roll" surround provides exceptional linearity at extremes of cone excursion



See specification tab for technical details or Click HERE for full details, response curves and Thiele & Small parameters. (opens in new window)

Model: CF1830e

Small Signal Parameters
D 0.38m/14.96in
Fs 40.5Hz
Mms 167.47g/5.91oz
Qms 4.367
Qes 0.371
Mmd 145.86g/5.15oz
Qts 0.343
Re 5.27Ω
Vas 167.92lt/5.93ft3
BI 24.6Tm
Cms 0.092mm/N
Rms 9.33kg/s
Le (at 1kHz) 3.24mH

Mounting Information
Overall diameter 460mm/18.11in
Overall depth 211.3mm/8.31in
Cut-out diameter 414mm/16.29in
Mounting slot dimensions 9.25x7mm/0.36x0.28in
Number of mounting slots 8
Mounting PCD range 432-441mm/17.0-17.36in