Radian Audio 508/2B Coaxial Speakers - Radian 8" coaxial speakers. Radian 508/2B coaxial speaker - Radian 508/2B coaxial speaker handles 200 watts RMS. Radian 508/2B 8" coaxial driver is available here. Radian coaxial speakers.

GREAT CHOICE AS A CEILING SPEAKER OR IN A SMALL STAGE MONITOR!
	RADIAN 508/2B
	No Longer Available
COAXIAL MODEL - 508/2B
Specifications
Impedance (LF/HF)	8 ohms / 8 ohms
RMS Power Rating	200 Watts
Sensitivity (1W/1m)	95dB SPL
Frequency Response	50Hz - 20kHz
Recommended Crossover	1.8kHz
Voice Coil Diameter(LF/HF)	3.0" / 1.75"
Nominal Dispersion	120°
Net Weight	8.02 lbs. / 3.64 kg.
Mounting Information
Overall Diameter	8.25" / 209.55mm
Bolt Circle Diameter	7.75" / 196.85mm
Baffle Cutout Diameter	7.125" / 180.975mm
Overall Depth	5" / 127mm
Materials
Woofer Cone	Reinforced Paper
HF Diaphragm	Aluminum
Basket	Stamped Steel
Input Connectors (HF)	.25" / 6.35mm Terminals
Input Connectors (LF)	.205" / 4.75mm Terminals
Thiele-Small Parameters
Resonant Frequency (Fs)	73 Hz
Impedance (Re)	6.3 ohms
Total Q (Qts)	.3961
Mechanical Q (Qms)	4.97
Electrical Factor(Qes)	.4304
Comp. Equivelant Vol. (Vas)	23.5 Liters
Voice Coil Overhang (Xmax)	.76
Surface Area of Cone (Sd)m2	.03413 m2
SPL vs. Frequency

Dimensional Drawing