CVX
COMPVXSUBWOOFER
CVX15, CVX12, CVX10
©2007 Stillwater Designs
WiringOptions
CompVX subwoofers are available with dual 2Ω (ohm) or dual 4Ω voice coils. Both coils must be
connected to a source of amplification. The dual 2Ω woofer will generate a 1Ω load if the coils are
wired in parallel or a 4Ω load in series. The dual 4Ω woofer will provide a 2Ω load wired in parallel or
8Ω load wired in series. The terminals with the white dots are for the first voice coil. The terminals with
solid-red and solid-black markings are for the second voice coil. See Figures 1 and 2.
CONFIGURATION
CVX15 /CVX12 /CVX10
Models:
CompVXSubwoofer
Owner’sManual
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Purchase Date:
Subwoofer Model Number:
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2 3
INSTALLATION
SealedEnclosureApplications
The CompVX generates more sound pressure than competing subwoofers on the market and excels
when used in the recommended sealed boxes. These sealed enclosure designs give the smoothest
response with increased energy at the lowest frequencies, 20 to 30Hz. These designs deliver massive
amounts of highly-accurate bass and can be driven with punishing levels of amplifier power.
The CompVX high performance suspension system can operate in a larger sealed enclosure. This
maximum enclosure volume application is ideal for SQ (ultra sound quality) installations. The SQ
enclosure generates a very flat response curve and superbly extends the subbass response.
CompVX woofers perform well in any size sealed enclosure between the Compact and SQ volume
recommendations. These systems will exhibit benefits of both designs: Compact produces high-impact
bass, and SQ generates low bass frequency protraction. Overall, the system will sound more like the
recommended enclosure design it is closest to in enclosure volume. These enclosure recommendations
have been calculated with the airspace inside the enclosure and include the displacement of the woofer.
All sealed-enclosure airspace should be filled to 50% loose poly-fil (polyester fiberfill) stuffing. Do not
make the airspace greater than the SQ, maximum enclosure volume, recommendation.
Model:
CVX10
CVX12
CVX15
SealedSQ (MaximumEnclosureVolume)
3.0 ft3(85.0L) Power Handling = 300W RMS
4.6 ft3(130L) Power Handling = 300W RMS
5.2 ft3(147L) Power Handling = 500W RMS
SealedCompact (MinimumEnclosureVolume)
.8 ft3(22.7L) Power Handling = 600W RMS
1.0 ft3(28.3L) Power Handling = 750W RMS
1.8 ft3(51.0L) Power Handling = 1000W RMS
Model:
Nominal Impedance [Zn], ohm [per coil]
Resonance Frequency [fs], Hz
Power Handling Watts, Peak (RMS)
Total Q-Factor [Qts]
Equivalent Volume [Vas], ft3(L)
Outer Frame Diameter, in (cm)
Hole Cut-Out Diameter, in (cm)
Mounting Depth, in (cm)
CVX15
2 or 4
21.5
2000 (1000)
.304
7.3 (207.7)
15 7/16 (39.2)
13 7/8 (35.2)
8 1/4 (20.9)
CVX12
2 or 4
26.4
1500 (750)
.360
2.3 (65.4)
12 9/16 (31.8)
11 1/8 (28.3)
6 5/8 (16.8)
CVX10
2 or 4
33.6
1200 (600)
.376
1.0 (28.6)
10 11/16 (27.1)
9 1/4 (23.5)
5 15/16 (15.0)
Performance
Model:
CVX10
CVX12
CVX15
Panel B, in (cm)
13.5x10.125 (34.3x25.7)
14.5x11 (36.8x27.9)
17.25x13.5 (43.8x34.3)
Panel A, in (cm)
13.5x13.5 (34.3x34.3)
14.5x14.5 (36.8x36.8)
17.25x17.25 (43.8x43.8)
Volume, ft3(L)
.8 (22.7)
1.0 (28.3)
1.8 (51.0)
Panel C, in (cm)
12x10.125 (30.5x25.7)
13x11 (33x27.9)
15.75x13.5 (40x34.3)
Panel Dimensions for CompactSealedEnclosures using 3/4” (1.9cm) thick MDF:
Figure 3
CompVXSUBWOOFER
Measurements based on the 2 ohm dual voice coil models.
Please allow two weeks of break-in time for the subwoofer to reach optimum bass performance.
ParallelWiring
SeriesWiring
Dual 2Ω Voice Coils = 4Ω Load
Dual 4Ω Voice Coils = 8Ω Load
Dual 2Ω Voice Coils = 1Ω Load
Dual 4Ω Voice Coils = 2Ω Load
Figure 1
Figure 2
Coil 1 +
Coil 1 +
Coil 2 +
Coil 2
+
Coil 2 -
Coil 2 -
Coil 1 -
Coil 1 -
Amplifier Speaker
Connection
Amplifier Speaker
Connection
Amplifier
+
Speaker
Connection
Amplifier +
Speaker
Connection
A
B
C
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