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Over a decade ago, Radian went into business with a commitment to manufacture loudspeaker components that accurately reproduce the full frequency range of the audio spectrum. 

 


RADIAN 5208C - COAXIAL 2-WAY SPEAKER

 

·       A DUAL CONCENTRIC TIME ALIGNED COMPACT 2-WAY COAXIAL SPEAKER

·       CONSISTS OF A CAST ALUMINUM FRAME 8" COAXIAL WOOFER & A 1" HF DRIVER WITH AN ALUMINUM DOME & POLYMER SURROUND

·       POLYMER SURROUND GREATLY REDUCES HARMONIC DISTORTION WHILE INCREASING DURABILITY

·       HIGH FREQUENCY DRIVER HAS EXTENDED HIGHS UP TO 25KHZ & 100°CONICAL DISPERSION

·       EXCELLENT POWER HANDLING OF 250 WATTS RMS & 500 WATTS PROGRAM

·       GREAT FOR HIGH QUALITY SMALL TO MEDIUM CINEMA SYSTEMS, PROFESSIONAL MONITOR CABINETS, ETC.

·       USE THE RADIAN 322/08B CROSSOVER THAT HAS A BUILT-IN ATTENUATION FOR THIS HF DRIVER

Specifications

Impedance (LF/HF)

8 ohms / 8 ohms

RMS Power Rating  (LF / HF)

250 Watts / 40 Watts

Program Power Rating (LF / HF)

500 Watts / 80 Watts

Sensitivity (1W/1m) (LF / HF)

95dB SPL / 105dB

Frequency Response

60Hz - 25kHz

Recommended Crossover

2.0kHz

Voice Coil Diameter(LF/HF)

2.0" / 1.75"

Nominal Dispersion

100° Conical

Voice Coil Length

11 mm

Air Gap Height

8 mm

Displacement Limit for Voice Coil

14 mm

Mounting Information

Overall Diameter

8.3" / 210mm

Bolt Circle Diameter

7.72" / 196mm

Bolt Hole Diameter

.22" / 5.5mm

Mounting Holes

6

Baffle Cutout Diameter

7.3" / 186mm

Overall Depth

5.16" / 131mm

Magnet Diameter

4.72" / 120mm

Net Weight

8.15 lbs. / 3.7 kg.

Materials

Woofer Cone

Paper/Kevlar

Basket

Cast Aluminum

Surround

M-Roll Polycotton

Connectors

Push Button

Voice Coil Winding

Edge Wound Ribbon

Voice Coil Wire

Copper Clad Aluminum

HF Diaphragm

Aluminum

HF Suspension

Polymer

LF / HF Magnet

Ferrite

Thiele-Small Parameters

Resonant Frequency (Fs)

90 Hz

Impedance (Re)

5.9 ohms

Coil Inductance (Le)

0.7 mH

Total Q (Qts)

.61

Mechanical Q (Qms)

6.8

Electrical Factor(Qes)

.66

Comp. Equivelant Vol. (Vas)

10.8 Liters / .38cu. ft.

Voice Coil Overhang (Xmax)

3.5

Moving Mass (Mms)

19.9 Grams

BL Factor

10.1 T-M

Reference Efficiency

2.5%

Surface Area of Cone (Sd)m2

.0221 m2