User Guide

Model: SRW2581
Maximum Power Handling (Coils in Series) .........400W
Continuous Power (Coils in Series) .....................200W
SPL (Coils in Series) ...........................85.3dB@1W/1m
Frequency Response ................................20Hz-1.5kHz
Cone Material .....Polypropylene w/Titanium Deposition
Woofer Magnet ..........................Strontium Ferrite 33 oz
Woofer Basket .......................................Stamped Steel
Cone Surround Material ............................NBR Rubber
Sealed/Acoustic Suspension
Thiele/Small Parameters
Vented/Bass Reflex
OPTIMUM
Enclosure Airspace (Unfilled) = 0.76 ft
3
Enclosure Airspace (Filled) = 0.64 ft
3
F
3
= 46 Hz
MAXIMUM FLAT
Encl
osure Airspace =1.50 ft
3
F
b
= 32Hz
F
3
= 30Hz
Por
t
Size = I.D. x
Length: 3" x
1
1.0"
• Polypropylene Cone
• Rubber Surround
• Dual 4 Ohm Heat Resistant Voice Coil
• Rear Vented Pole Piece
• Large Strontium Ferrite Magnet
• Rubber Magnet Cover
• For Small Sealed or Small Vented Design
Outside Dia 10 1/8" (257.2mm)        
Mounting Hole 9 1/16" (230.2mm)       
Mounting Depth 5" (127.0mm)    
Sensitivity@1W/1m 82.3/85.3
Max. Peak Music 400W
Continuous Power 200W
Nominal Impedance 4/8 Ohms
Re DC Imp (± 10%) 3.30/6.40 Ohms
Le 1.05/4.44mH
V.C. Diameter 2.0" (50.8mm)
V.C. Length 0.945" (24.0mm)
Air Gap 0.314" (8.0mm)
Piston Diameter 8.50" (0.2159m)
Sd 56.7 in
2
(0.0366m
2
)
Vas 0.92ft.
3
(26.13liters)
Fs 41.6Hz
Qts 1.38/0.76
Qes 1.58/0.78 8.20
Qms 8.42
Mms 105.4g
Mmd 101.4g
Rms 3.44kg/s
BI 7.2/14.6 Tm
Speaker Displacement 140in.
3
(R)/105in.
3
(F)
Xmax 0.36" (9.2mm)
Magnet Weight 33 oz.
Clarion Corporation of America 661 W. Redondo Beach Blvd., Gardena, CA 90247
Phone: 1-800-GO-CLARION FAX: [phone]
60
70
80
90
100
110
10 100 1000 Hz
60
70
80
90
100
110
10 100 1000 Hz
21A3982
dB
dB