More than just a pretty speaker, the Dayton Audio Designer Series DS115-8
4" woofer features an extremely neutral response and high Xmax capability.
Key Features
Coated paper cone, half roll rubber surround for durability and accurate
reproduction
Cosmetic frame with low profile lip, designed for front mounting—no
countersinking required!
Optimized to yield a low 3 dB down point and high potential output in a
reasonably sized cabinet
Vented pole piece for minimized power compression and maximized
reliability
Generous Xmax capability encourages use of moderate bass boost to tailor
the response
Smooth frequency response and linear roll-off simplify filter design,
assuring good results with off-the-shelf crossovers
Retains the same "family look" as the popular Dayton Audio DVC Series
subwoofers and passive radiators
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"
Bolt Circle Diameter 4.21
Moving Mass Of Diaphragm (Mmd) 7.9
Power Handling (RMS) 35 Watts
Power Handling (MAX) 70 Watts
Impedance 8Ω
Frequency Response 60 to 8,000Hz
Sensitivity 85.3dB 2.83V/1m
Voice Coil Diameter 1"
Thiele-Small Parameters
Resonant Frequency (Fs) 55.2Hz
DC Resistance (Re) 5.8Ω
Voice Coil Inductance (Le) 0.8mH
Mechanical Q (Qms) 2.1
Electromagnetic Q (Qes) 0.46
Total Q (Qts) 0.38
Compliance Equivalent Volume (Vas) 0.15ft³
Mechanical Compliance of Suspension (Cms) 1.05mm/N
BL Product (BL) 5.88T·m
Maximum Linear Excursion (Xmax) 4.1mm
Surface Area of Cone (Sd) 54.1cm²
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"
# Mounting Holes 4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity
suggestion)
Sealed Volume 0.04ft³
Sealed F3 124Hz
Vented Volume 0.09ft³
Vented F3 70Hz