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Peerless by Tymphany SDS-135F25CP02-04 5-1/4″ Paper Cone Woofer

The Peerless SDS-135F25CP02-04 compact subwoofer offers low resonant frequency performance, ideally suited for compact sealed enclosures. This 5.25 inch 4 ohm member of the SDS family offer a coated paper cone with rubber surround, a high power voice coil suspended in a ferrite magnet motor, and a narrow-profile steel basket shaped to fit into narrow cabinets.

Product Details

Brand Peerless by Tymphany
Model SDS-135F25CP02-04
Part Number 264-1658
UPC 848864049915
Unit of Measure Each
Weight 2.15
Product Specifications

Nominal Diameter 5-1/4″
Bolt Circle Diameter 5.55
Power Handling (RMS) 50 Watts
Power Handling (MAX) 100 Watts
Impedance 4Ω
Frequency Response 40 to 1,500Hz
Sensitivity 86.1dB 2.83V/1m
Voice Coil Diameter 1″
Thiele-Small Parameters

Resonant Frequency (Fs) 57.7Hz
DC Resistance (Re) 3.3Ω
Voice Coil Inductance (Le) 1.22mH
Mechanical Q (Qms) 3.89
Electromagnetic Q (Qes) 0.45
Total Q (Qts) 0.41
Compliance Equivalent Volume (Vas) 0.138ft³
Mechanical Compliance of Suspension (Cms) 0.369mm/N
BL Product (BL) 7.401T·m
Diaphragm Mass Inc. Airload (Mms) 20.6g
Maximum Linear Excursion (Xmax) 5.2mm
Surface Area of Cone (Sd) 86.35cm²
Materials of Construction

Cone Material Paper
Surround Material Rubber
Voice Coil Former Aluminum
Basket / Frame Material Steel
Magnet Material Ferrite
Mounting Information

Overall Outside Diameter 5.98″
Baffle Cutout Diameter 4.875″
Depth 2.55″
# Mounting Holes 6
Parts Express Staff Recommended Enclosure Volume

Sealed Volume 0.12ft³
Sealed F3 115Hz
Vented Volume 0.2ft³
Vented F3 50.4Hz