ENCLOSURE RECOMMENDATIONS
Optimum Sealed Volume
Internal volume: .59ft3 / 16.71L
Enclosure "Q": .71
-3dB response: 49Hz
Efficiency: 86dB
Maximum power handling: 250 watts db
Cu. feet/liters “Q”
.95
.6
-3dB
61Hz
50Hz
12.5"
Efficiency
86.9dB
86dB
10"
PE
250 watts
250 watts
Optimum Vented Volume
Internal volume: 1.5ft3 / 42.4L
Tuning frequency: 29Hz
Port (D x L): 4" x 23.43"***
-3dB response: 27Hz
Efficiency: 87dB
Maximum power handling: 250 watts db
14.5"
Cu. feet/liters Tune to Port -3dB small vented volume: 1.1/31.15 35Hz 4” x 21.7”*** 27Hz large vented volume: 1.8/50.97 25Hz 3” x 14.4” 25Hz
Efficiency
87dB
86dB
18.6"
PE
250 watts
250 watts
Optimum Bandpass Volume
Front volume: .61ft3 / 17.27L
Rear volume: .34ft3 / 9.63L
Tuning frequency: 63Hz
Port (D x L): 5" x 17.6"***
-3dB response: 44 - 90Hz
Efficiency: 88dB
Maximum power handling: 250 watts db
Front
7.3"
Rear
7"
13.5" 16.55"
Front cu. ft/liters Rear cu.ft/liters Tune to
.61/17.27
.59/16.71
.34/9.63
.94/26.62
63Hz
Port -3dB
5”x17.6”*** 44 – 90Hz
Efficiency
88dB
PE
250 watts
56.8Hz 5"x23.5”*** 39 – 62Hz 87.7dB
225 watts
*Note: Dimensions given require the use of 0.75" (19mm) board.
**Be sure to add in .050ft3 / 1.42L for driver displacement in all "Other" enclosures.
***WARNING: Due to long port length, slot porting will most likely be needed. Tube ports are for illustration purposes only.
DAMPING MATERIAL
The most common damping materials used are Dacron and Polyfill. Reclaimed fiber underlay has been discovered to be an excellent substitute especially when glued directly to the walls of the enclosure. Fiberglass may be used, but please limit usage to sealed enclosures only. When used in vented/bandpass enclosures, fiberglass fibers escaping through the port may be hazardous to your health.
SEALED ENCLOSURE
VENTED ENCLOSURE
BANDPASS (sealed chamber)
BANDPASS (vented chamber)
DACRON/POLYFILL loosely fill the enclosure line 3-5 walls line 3 walls
UNDERLAY
line 5 walls
line 1-3 wall
line 1-3 wall line 1 wall (optional) line 1 wall (optional)
SPECIFICATIONS
FIBERGLASS line 5 walls
Please limit the use of fiberglass to sealed enclosures only
Model
Driver description
Mounting depth, in./mm
Cutout dimensions, in./mm
Impedance
Nominal power handling
Maximum power handling (PE)
Dynamic power handling
Voice coil – size
Magnet weight
Frequency response
Resonance frequency (fs)
QTS
QMS
QES
VAS, ft./liter
X-max, in./mm
Efficiency (2.83V/1M)
DBW10
10” Subwoofer, Single Voice Coil
4.625/117.54
9.1/231.26
4 ohms per coil
175 watts
250 watts
800 watts
2”, 4 layer
38 oz.
22Hz to 500Hz
24Hz
.3588
10.498
.371
2/56.82
.315/8
86.18dB
POWER RATINGS
Rating the power handling of subwoofers is not a difficult task. However, understanding power ratings is often confusing. Many times the Maximum Power Ratings are viewed as the RMS power handling of the driver, when in actuality Maximum is generally the break point of the driver. This has lead Crossfire to come up with a system to rating the power necessary to drive our subwoofers. Please read the following cautiously before choosing your amplifier.
Nominal power handling
-Nominal power handling is the power rating given by Crossfire at which the subwoofer will experience minimal mechanical degradation over time when using a recommended enclosure. In other words, this is the recommended power to be used per woofer to assure long life.
Maximum power handling (PE)
-Maximum power handling is the power rating given by Crossfire at which the subwoofer could experience a high amount of mechanical degradation that may lead to possible failure over time when using a recommended enclosure. In other words, do not exceed this power level for extended periods of time.
Dynamic power handling
-Dynamic power handling is the power rating given by Crossfire for peak transients and short bursts.
Continuous playing at or above this level will cause mechanical failure and/or thermal failure. In other
This could possibly void your warranty.
words, this power level should never be attained with the exceptions of approved SPL competition vehicles.
