Dayton
Audio's Ultimax Series DVC subwoofers are purpose-built to move air and create
clean, articulate, fast bass. Experience the apex of subwoofer design.
Highlights
·
Sweeps massive amounts of air!
·
Over 1-1/2" of total cone travel
·
800 watts RMS power handling
·
The latest in subwoofer technology
·
Dual linear stiffness spiders limit distortion
and rocking modes
·
Dual 2 ohm, 2-layer copper voice coils
·
Large vented pole piece and under-spider venting
Product Details
Dayton Audio UM15-22 15" Ultimax DVC Subwoofer 2 ohms Per Coil
If you want outrageous
amounts of bass, you gotta move some air
The Ultimax Series of dual voice coil subwoofers, from Dayton Audio, are
not for the faint of heart. Built using the latest in subwoofer technology,
Ultimax subwoofers are the pinnacle of low frequency driver design. An Ultimax
subwoofer tests the strength of your foundation with fast, articulate,
gut-wrenching bass.
The versatility you need
for mobile, home, or pro subwoofer excellence
Dual 2 ohm voice coils allow for stereo 2 ohm and mono 1 ohm wiring
configurations when connecting to high current car audio and professional audio
amplifiers to extract maximum power. For home audio applications, simply wire
the voice coils in series for a benign 4 ohm load for greater amplifier
compatibility.
Built to produce massive
low frequency output and keep on doing it
To improve power handling, increase thermal management, and reduce power
compression, Dayton Audio designed the Ultimax Series with large black anodized
formers and vented pole pieces, under-spider ventilation, and two-layer copper
voice coils.
Over 1-1/2" of travel (3/4" Xmax) is kept completely linear
through the use of dual spiders that also limit distortion and rocking modes.
"Tall-boy" rubber surrounds with integrated gaskets maintain driver
surface area during extreme excursion moments. Thick, one-piece Nomex honeycomb
covered cones are covered with woven, heavy-duty glass fibers creating
ultra-still cones that resist deformation.
A strong motor takes you to
wherever you want to be
A large copper sleeve and copper pole cap in the motor reduce energy storage from inductance, with the side benefit of lowering distortion for "faster" response. Large dual-stacked, high-energy magnets handle the heavy lifting and bring Qts down to a level where Ultimax subwoofers can be used in vented or sealed cabinets and enclosures.
Cabinet recommendations:
• Sealed 3.1 cubic ft. (net internal) with 3
lbs. of Acousta-Stuf polyfill, f3 of 35 Hz with a 0.707 Qtc alignment
• Vented 6.0 cubic ft. (net internal, not
including driver or port volume) with 6 lbs. of Acousta-Stuf tuned to 18 Hz
with two 4" diameter by 26" long flared ports for an f3 of 22 Hz.
Larger cabinets and lower tuning frequencies are possible.
Note: All parameters derived with voice coils wired in series.
PRODUCT SPECIFICATIONS
|
Nominal
Diameter |
15" |
|
Power
Handling (RMS) |
800
Watts |
|
Power
Handling (max) |
1600
Watts |
|
Impedance |
4 ohms |
|
Frequency
Response |
15 to
1,000 Hz |
|
Sensitivity |
86.5
dB 2.83V/1m |
|
Voice
Coil Diameter |
2.5" |
THIELE-SMALL PARAMETERS
|
Resonant
Frequency (Fs) |
19.5
Hz |
|
DC
Resistance (Re) |
3.4
ohms |
|
Voice
Coil Inductance (Le) |
1.31
mH |
|
Mechanical
Q (Qms) |
2.40 |
|
Electromagnetic
Q (Qes) |
0.59 |
|
Total
Q (Qts) |
0.47 |
|
Compliance
Equivalent Volume (Vas) |
7.92
ft.³ |
|
Mechanical
Compliance of Suspension (Cms) |
0.24
mm/N |
|
Diaphragm
Mass Inc. Airload (Mms) |
279.4g |
|
Maximum
Linear Excursion (Xmax) |
19 mm |
|
Surface
Area of Cone (Sd) |
814.6
cm² |
MATERIALS OF CONSTRUCTION
|
Cone
Material |
Nomex
/ Glass Fiber |
|
Surround
Material |
Rubber |
|
Voice
Coil Wire Material |
Copper |
|
Voice
Coil Former |
Aluminum |
|
Basket
/ Frame Material |
Cast
Aluminum |
|
Magnet
Material |
Ferrite |
MOUNTING INFORMATION
|
Overall
Outside Diameter |
15.28" |
|
Baffle
Cutout Diameter |
13.78" |
|
Depth |
7.55" |
|
Bolt
Circle Diameter |
14.65" |
|
#
Mounting Holes |
8 |
OPTIMUM CABINET SIZE (DETERMINED USING BASSBOX
6 PRO HIGH FIDELITY SUGGESTION)
|
Sealed
Volume |
3.98
ft.³ |
|
Sealed
F3 |
33 Hz |
|
Vented
Volume |
11.1
ft.³ |
|
Vented
F3 |
17 Hz |