UXP
ULTIMATE PERFORMANCE PLUS
DUAL VOICE COIL SUBWOOFERS
INSTALLATION & OPERATION MANUAL
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-2- UXP10D - UXP12D
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Dear Customer
Thank you for choosing BRAVOX !
The ULTIMATE PERFORMANCE PLUS SUBWOOFER you purchased is a high performance driver and was
engineered to produce high SPL and extended bass response at a very low distortion level.
This subwoofer is the result of a combination of advanced Acoustic Engineering and state-of-the-art manufacturing.
BRAVOX engineers have managed to blend some of the car audio industry's most innovative technologies and the
latest 21 century materials into the ULTIMATE PERFORMANCE PLUS SUBWOOFERS.
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MAIN FEATURES
1 - TPR/Santoprene Injection molded parabolic surround combines high linear excursion with large piston
area, for high bass output and low distortion.
2 - High stiffness injection molded PGFC (Poly/Glass Fiber/Ceramic) diamond faceted cone (patented) for
clean, deep and extremely well defined bass.
3 - Extra large CONEX spider, efficiently controls voice coil excursion for high bass output and long term
TM
mechanical stability.
4 - High temperature double voice coil on Fiberglass former combined with PVCC (Pheripheral Voice Coil
Cooling) for extreme power handling capability.
5 - Gold plated push buttom terminals for maximum power transfer from your amplifier.
6 - FEA (Finite Element Analysis) computer optmized magnet design. Heavy double stacked magnets
provide high flux density for high SPL, low Q and excellent transient response.
TECHNICAL SPECIFICATIONS
Parameter UXP10D-2 UXP10D-4 UXP12D-2 UXP12D-4
Size (inch) 10" 10" 12" 12"
Z (ohms) DVC 1.0 DVC 2.0 DVC 1.0 DVC 2.0
Re (ohms) 0.90 1.80 0.90 1.80
Levc @ 1 kHz (mH) 0.64 0.97 0.62 1.09
Krm (m ohms) 0.81 2.32 1.63 3.52
Kxm (mH) 7.12 9.93 7.44 13.63
Erm 0.64 0.79 0.77 0.77
Exm 0.73 0.73 0.72 0.71
Sd (m2) 0.0346 0.0346 0.0530 0.0530
Bl (T*m) 7.0 8.3 7.5 9.7
(l)
Vas 35 42 61 69
(g)
Mms 98 82 160 141
Fo (Hz) 35 35 32 32
Qms 6.27 7.33 5.29 5.36
Qes 0.40 0.47 0.51 0.54
Qts 0.38 0.44 0.47 0.49
Xmax (mm) 8.0 8.0 8.0 8.0
SPL (dB @ 1w/1m) 88 88 88 88
Power handling RMS (watts) 300 300 400 400
Power handling Max (watts) 600 600 800 800
UXP10D
-3- UXP10D - UXP12D
UXP12D
ENCLOSURES
BRAVOX ULTIMATE PERFORMANCE PLUS SUBWOOFERS have been specially designed to produce
outstanding results in both small volume sealed and small volume vented enclosures. While it is possible for the
advanced installer to use the Thiele/Small parameters provided in this manual to design their own enclosures (for
more on "doing it yourself", check out Vance Dickason's Loudspeaker Design Cookbook, 6 Edition at
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www.audioXpress.com), all this work has been done for you and provided in the recommended enclosure charts.
The choice of which type of enclosure, vented or sealed, is strictly up to you. As a rule, sealed enclosures provide
better transient bass response than their vented counterparts, although the vented enclosures generally provide more
deep bass. Your choice should be based on the amount of space available and the size of the vehicle. In general,
smaller vehicles (Corvettes to Camry's) probably work best with sealed enclosures while larger vehicles such as
SUV's, Vans, large trucks or RV's can benefit from the kind of performance available from vented enclosures.
However, both enclosure types will work in any situation.
SEALED ENCLOSURES
This enclosure is made up of a totally closed, air-tight box. This type of enclosure gives excellent, tight bass
response, as well as providing an effective control of loudspeaker excursion, maintaining it within reasonable limits
and generally providing lower distortion and very high volume levels. If you build your own enclosure, BRAVOX
recommends that you glue and screw all joints using enough glue to ensure that all joints are air-tight.
VENTED ENCLOSURES
Vented enclosures are not air-tight and incorporate an additional opening known as a port or vent, which is
generally fabricated from either plastic or cardboard tubing. The port augments the sound coming out of the
woofer and is in most cases capable of going lower in frequency than the same woofer in a sealed box. Even
though vented enclosures are not air-tight, you should follow the same procedure as with sealed boxes and glue and
screw together all joints.
The tables below give the internal volume (Vb) in cubic feet and liters for sealed and vented enclosures, each
specifically designed for the ULTIMATE PERFORMANCE PLUS SUBWOOFERS. Sealed enclosures were
calculated for flat response (Qtc in the region of 0.7) but smaller volumes can also be used when an "enhanced"
bass response is desired. The flat response enclosure provides more accurate bass while the smaller "enhanced"
bass enclosures are somewhat less accurate, but have marginally increased power handing. For vented enclosures
an "enhanced" bass response enclosure can be designed as well, but in this case, rather than changing the volume
of the enclosure, a different tunning (vent length) is used. In table bellow, the longer vent leads to a flat response
whereas the shorter one refers to "enhanced" bass enclosure.
SEALED ENCLOSURES
Model Vb (net)
UXP10D-2
UXP10D-4
UXP12D-2
UXP12D-4
0.52 ft3
14.9 lts
0.72 ft3
20.4 lts
1.40 ft3
39.5 lts
1.74 ft3
49.3 lts
VENTED ENCLOSURES
Model Vb (net)
UXP10D-2
UXP10D-4
UXP12D-2
UXP12D-4
1.40 ft3
39.5 lts
1.61 ft3
45.7 lts
2.0 ft3
56.6 lts
2.0 ft3
56.6 lts
15" 17" 13" 4" 16" 8"
381 mm 432 mm 330 mm 100 mm 400 mm 200 mm
15" 18" 14" 4" 18" 8"
381 mm 457 mm 356 mm 100 mm 450 mm 200 mm
17" 18" 15" 4" 16" 6"
432 mm 457 mm 381 mm 100 mm 400 mm 150 mm
17" 18" 15" 4" 14" 6"
432 mm 457 mm 381 mm 100 mm 350 mm 150 mm
H W D Dv Lv (flat) Lv (more bass)
External Dimensions
H W D
12" 13" 9"
305 mm 330 mm 229 mm
13" 15" 9.5"
330 mm 381 mm 241 mm
15" 17" 13"
381 mm 432 mm 330 mm
15" 18" 15"
381 mm 457 mm 381 mm
External Dimensions Vent
CLOSED
W
D
Vb
H
VENTED
W
D
H
Vb
External dimensions in above tables assume the use of 0.75 inch (19 mm) thick material
-4- UXP10D - UXP12D
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