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Dayton Audio DS90-8 3″ Designer Series Full-Range Driver 8 Ohm

The Designer Series by Dayton Audio was developed specifically with the speaker designer in mind. It is an affordable, attractive line of drivers that puts performance first. Careful engineering ensures that each speaker in the series is capable of handling full rated power at the lowest possible frequencies—without exceeding Xmax.

These speakers combine useful performance parameters with elegant style. Carefully optimized to provide superb audio reproduction when incorporated into a wide variety of enclosures and alignments, the Designer Series transducers put a beautiful face on audiophile excellence.

• Suggested enclosures:

Sealed cabinet: Type: Acoustic suspension (alpha 3.5), Qtc 0.69; Size (internal) including volume displaced by driver: 0.03 ft³; Internal cabinet dimensions (golden ratio): 6-1/4″H x 3-7/8″W x 2-3/8″D. Typical results: 3 dB down-point (f3): 158 Hz; Low frequency limit at rated power without exceeding conventional Xmax (i.e. (voice coil length – gap height) / 2)): 90 Hz.

Vented cabinet: Type: Bass reflex; Size (internal) including volume displaced by driver and port: 0.12 ft³; Internal cabinet dimensions (golden ratio): 7-3/4″H x 4-3/4″W x 3″D; Port dimensions (with flared exit): 1″ dia. x 6″L. Typical results: 3 dB down-point (f3): 73 Hz; Tuning frequency (fb): 69 Hz; Low frequency limit at rated power without exceeding conventional Xmax (i.e. (voice coil length – gap height) / 2)): 70 Hz.

Frequency response (FRD) and Impedance (ZMA) data files available to assist in crossover and enclosure modeling. 

Product Details

Brand Dayton Audio
Model DS90-8
Part Number 295-422
UPC 844632095375
Unit of Measure Each
Weight 1.2
Product Specifications

Nominal Diameter 3″
Bolt Circle Diameter 3.27
Moving Mass Of Diaphragm (Mmd) 3.8
Power Handling (RMS) 20 Watts
Power Handling (MAX) 40 Watts
Impedance 8Ω
Frequency Response 80 to 13,000Hz
Sensitivity 84.1dB 2.83V/1m
Voice Coil Diameter 0.8″
Thiele-Small Parameters

Resonant Frequency (Fs) 81.4Hz
DC Resistance (Re) 6.3Ω
Voice Coil Inductance (Le) 0.56mH
Mechanical Q (Qms) 2.19
Electromagnetic Q (Qes) 0.53
Total Q (Qts) 0.43
Compliance Equivalent Volume (Vas) 0.05ft³
Mechanical Compliance of Suspension (Cms) 1.02mm/N
BL Product (BL) 4.76T·m
Maximum Linear Excursion (Xmax) 2.5mm
Surface Area of Cone (Sd) 31.2cm²
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 3.63″
Baffle Cutout Diameter 2.76″
Depth 1.76″
# Mounting Holes 4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)

Sealed Volume 0.02ft³
Sealed F3 148Hz
Vented Volume 0.05ft³
Vented F3 80Hz