Soundstream X3-122 Technical manual

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Woofer & Enclosure Information
X3-122
X3-152
X3-182

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Congratulations on your new Soundstream sub-woofer purchase. We
greatly appreciate your business. This may look like a run-of-the-mill
cardboard box, but it’s actually a protective barrier over one of the
finest engineered and assembled sub-woofers available.
Harmonic Indulgence… Listen and Feel
Features, Parameters, & Dimensions
Coated Pulp Paper Cone
Asymmetrical S-Block Foam Surround
CCAW Voice Coil on Aluminum Former
8ga Duplex Direct Wire Terminals
Triple Nomex Spider
Cast Aluminum Basket w/ Texture Finish
Voice Coil Perimeter Cooling
Vented Back Plate
High BL Motor Assembly
Glue-less Re-Cone Kit Available
Specifications X3-122 X3-152 X3-182
Fs (Hz) 39.55 35.96 32.68
Qms 7.017 5.435 5.456
Vas (ft³) 0.503 1.378 2.401
Cms (mm/N) 0.536 0.515 0.516
Mms (g) 303.4 284.7 461.6
Xmax (mm) 20.00 20.00 20.00
Xmech (mm) 40.00 40.00 40.00
Piston Diameter (in) 9.252 12.01 13.78
Sd (in²) 67.23 113.20 149.10
Qes 0.657 0.456 0.454
Re (Ω) 3.89 3.88 3.83
Z (Ω) 4 4 4
BL (Tm) 21.12 27.19 28.27
Rms Power DCV & W 71V (5,000) 77V (6,000) 84V (7,000)
Qts 0.601 0.420 0.419
NO (%) 0.130 0.384 0.507
1w/1m SPL (dB) 83.15 87.85 89.00
Voice Coil Diameter (in) 4.00” 4.00” 4.00”
Impedance (Ω) DVC 2ΩDVC 2ΩDVC 2Ω
M-vd (ft.3) 0.265 0.406 0.543
Overall Diameter (in) 12.75” 15.75” 19.00”
Overall Height (in) 8.50” 9.75” 11.125”
Mounting Depth (in) 7.625” 8.625” 10.00”
Cutout Diameter (in) 11.125” 14.125” 16.875”
Flange Width (in) 0.75” 0.75” 0.75”
Flange Height (in) 1.00” 1.00” 1.00”
Weight (lbs) 50 65 65
BurpPower DCV (W) 95V (9,000) 100V (10,000) 105V (11,000)

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Soundstream does not provide enclosure dimensions as there are
infinite variables when designing a box, i.e. vehicle, amplifier, music
preferences, etc… For designs tailored to your specific needs, please
contact us at [email protected], or 1-800-724-1377.
Enclosure Dimensions
All enclosures should be made of .75” (3/4”) material only. When
possible, make the baffle 1.5” (1 ½) thick and add .75” (3/4”) to the
depth of the enclosure to compensate. All volumes INCLUDE vent/
port and subwoofer displacements. DO NOT change the volume
unless you plan on adding a substantial amount of bracing. For
added performance, applying a coat of fiberglass resin to the interior
walls will greatly improve sealing the enclosure. Adding a thin layer
of poly-fill will improve response by smoothing out reflections
within the enclosure.
Enclosure Construction
Enclosure Recommendations
X3-122 Hi-Tuned X3-122 Low-Tuned
Ft.3 Round Port FB F3 Ft.3 Round Port FB F3
Min. 2.00 (2) 4" x 14" 50.1 38.0 Min. 2.50 (3) 3" x 14.75" 39.9 31.6
Opt. 3.00 (3) 4" x 12.25" 50.2 37.8 Opt. 3.50 (3) 3" x 12.50" 34.8 28.2
Max. 4.00 (3) 4" x 6.75" 50.2 37.8 Max. 4.50 (2) 4" x 15.5" 29.9 25.0
X3-152 Hi-Tuned X3-152 Low-Tuned
Ft.3 Round Port FB F3 Ft.3 Round Port FB F3
Min. 3.00 (2) 4" x 6.5" 50.3 40.6 Min. 3.00 (2) 4" x 14" 40.0 34.0
Opt. 4.50 (3) 4" x 5.5" 50.2 40.1 Opt. 4.50 (2) 4" x 10.25" 34.9 29.9
Max. 6.00 (4) 4" x 4.75" 50.5 40.0 Max. 6.00 (3) 4" x 18.25" 29.9 26.2
X3-182 Hi-Tuned X3-182 Low-Tuned
Ft.3 Round Port FB F3 Ft.3 Round Port FB F3
Min. 4.00 (4) 4" x 12.75" 50.2 40.5 Min. 4.00 (3) 4" x 16.5" 40.0 34.0
Opt. 6.00 (3) 6" x 12" 50.1 39.7 Opt. 6.00 (2) 6" x 20.75" 34.9 29.9
Max. 8.00 (4) 6" x 10.75" 50.1 39.4 Max. 8.00 (2) 6" x 19.5" 30.0 26.2

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