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Dayton Audio SD215A-88 8″ DVC Subwoofer

The Dayton Audio SD215A-88 8″ subwoofer speaker is one of the best bang-for-the-buck low frequency drivers available today. Dayton Audio DVC Series woofers were designed to offer the maximum performance-per-dollar. The speakers feature poly coated paper cones, wide rubber surrounds, large dual 8 ohm voice coils, vented pole pieces, and bumped back plates. Their healthy Xmax, long-throw construction, and dual voice coils make them perfect for any economical yet high-performing subwoofer speaker system.

Note: This driver has dual 8 ohm voice coils. The specs listed below were measured with the voice coils wired in parallel for a 4 ohm load.

Product Details

Brand Dayton Audio
Model SD215A-88
Part Number 295-484
UPC 844632088698
Unit of Measure Each
Weight 4.7
Product Specifications

Nominal Diameter 8″
Power Handling (RMS) 80 Watts
Power Handling (MAX) 160 Watts
Impedance 4Ω
Frequency Response 31 to 2,500Hz
Sensitivity 85.9dB 2.83V/1m
Voice Coil Diameter 1.5″
Thiele-Small Parameters

Resonant Frequency (Fs) 31Hz
DC Resistance (Re) 3.2Ω
Voice Coil Inductance (Le) 1.16mH
Mechanical Q (Qms) 3.1
Electromagnetic Q (Qes) 0.45
Total Q (Qts) 0.39
Compliance Equivalent Volume (Vas) 1.35ft³
Mechanical Compliance of Suspension (Cms) 0.62mm/N
BL Product (BL) 7.7T·m
Diaphragm Mass Inc. Airload (Mms) 42.4g
Maximum Linear Excursion (Xmax) 6mm
Surface Area of Cone (Sd) 208.7cm²
Materials of Construction

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

Overall Outside Diameter 8.5″
Baffle Cutout Diameter 7.09″
Depth 3.74″
# Mounting Holes 5
Parts Express Staff Recommended Enclosure Volume

Sealed Volume 0.5ft³
Sealed F3 63Hz
Vented Volume 1ft³
Vented F3 35Hz