Model # RDC22WP-4A

RDC22WP-4A
Key Features:
  • 2.5" (66 mm), 4 ohm
  • Voice Range, 4 watt
  • Ferrite magnet, Red Acrylic treated cloth cone
  • RoHS Compliant;
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Product Specifications & Parameters

Primary Specifications

Speakers Environment Outdoor
ROHS Compliant Yes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 2.5 / 66.0 inch / mm
Rated Impedance 4 ohms
Rated Power 4.0 Watts
Program Power 8 Watts
Frequency Range 300 - 6000 Hz
Sensitivity
(2.83 V input measured at 1 Meter) 		88 dB SPL
Voice Coil Diameter 0.7 / 17.8 inch / mm
Magnet Weight 2.4 / 68 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 361 Hz
D.C. Resistance (Re) 3.0 ohms
Mechanical Q (Qms) 5.8
Electrical Q (Qes) 2.33
Total Q (Qts) 1.66
Compliance Equivalent Volume (Vas) ltr
BL Product (BL) T-M
Maximum Linear Excursion (Xmax) 0.9 mm
Surface Area of Cone (Sd) cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.19 X 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Aluminum
Cone Red Acrylic Treated Cloth
Cone Edge Red Acrylic Treated Cloth
Dust Cap Cloth

Sensitivity / Frequency

http://s3.amazonaws.com/misco/curves/RDC22WP-4A.JPG?1345610741

Drawing

ID Description Measurements Tolerance
OD Outside Diameter 2.5 in. +/- 0.040”
CD Cutout Diameter 2.3 in. +/- 0.030”
MG Magnet Diameter 2.1 in. +/- 0.050”
HD Hole Diameter 0.17 in. +/- 0.020”
MD Mounting Diameter 2.9 in. +/- 0.020”
ID Internal Depth 1.0 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 196.0 g
ceramic