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Dayton Audio DS115-8 4″ Designer Series Woofer Speaker

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: Closed (alpha 1.9), Qtc 0.55; Size (internal) including volume displaced by driver: 0.1 ft³; Internal cabinet dimensions (golden ratio): 9″H x 5-1/2″W x 3-1/2″D. Typical results: 3 dB down-point (f3): 135 Hz; Low frequency limit at rated power without exceeding conventional Xmax (i.e. (voice coil length – gap height) / 2)): 70 Hz.

Vented cabinet: Type: Bass reflex; Size (internal) including volume displaced by driver and port: 0.12 ft³; Internal cabinet dimensions (golden ratio): 9-1/2″H x 5-7/8″W x 3-5/8″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)): 55 Hz.

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

Product Specifications
Nominal Diameter
4″

Power Handling (RMS)
35 Watts
 
Power Handling (max)
70 Watts

Impedance
8 ohms
 
Frequency Response
60 to 8,000 Hz

Sensitivity
85.3 dB 2.83V/1m
 
Voice Coil Diameter
1″

Magnet Weight
11 oz.
 
Thiele-Small Parameters
Resonant Frequency (Fs)
55.2 Hz

DC Resistance (Re)
5.8 ohms
 
Voice Coil Inductance (Le)
0.8 mH

Mechanical Q (Qms)
2.10
 
Electromagnetic Q (Qes)
0.46

Total Q (Qts)
0.38
 
Compliance Equivalent Volume (Vas)
0.15 ft.³

Mechanical Compliance of Suspension (Cms)
1.05 mm/N
 
BL Product (BL)
5.88 Tm

Diaphragm Mass Inc. Airload (Mms)
7.9g
 
Maximum Linear Excursion (Xmax)
4.1 mm

Surface Area of Cone (Sd)
54.1 cm²
 
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
4.55″

Baffle Cutout Diameter
3.69″
 
Depth
2.15″

Bolt Circle Diameter
4.21″
 
# Mounting Holes
4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume
0.04 ft.³

Sealed F3
124 Hz
 
Vented Volume
0.09 ft.³

Vented F3
70 Hz