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  • Factory Hours: Monday thru Thursday 7:00 A.M. - 5:30 P.M.

  • Shipping Hours: Monday thru Thursday 7:00 A.M. - 5:30 P.M.

  • Call Toll Free: 1-866-210-8731

  • OEM speaker manufacturing.

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  • Shop online anytime

 

 
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All of our subs are built with American made coils!

 

Look for this symbol M to designate great Super Bass enclosures and subwoofers that work great in the ProBox Super Bass!

 

Sealed box size range 1.5 - 6.00 cu. ft. Ported box size range: 3.0 - 10.0 cu. ft.

M1000 watts max in recommended boxes. 500 watts continuous RMS in recommended boxes. Credence Speakers 2 1/2" dual 2 + 2 and 4 + 4 ohm heavy duty voice coil. Fully packed with all the most wanted features! Stitched Santoprene surround, heavy talc filled copolymer cone body, laminated spider neck, 120 oz magnet, large 283 oz. magnet structure, Kapton voice coil former, bond-coated hi-temp copper wire, rear vented motor structure, large push terminals accepting 6 mm diameter wire, and much more!

 

Available in 2 ohm or 4 ohm

 

SQ15D2 and SQ15D4

  Credence SQ15D2/4 square subwoofer

 

Your ALT-Text here Your ALT-Text here Your ALT-Text here  Physical Specs  Your ALT-Text here Your ALT-Text here Your ALT-Text here
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Basket Material 1.5 mm Steel
Basket Finish Black Crinkle Powder
Magnet Weight 120 oz.
Magnet Material Strontium Ferrite
Magnet Structure Weight 17.7 lbs
Cone Body Material Talc Filled Copolymer
Cone Edge Material Black Santoprene Rubber
Cone Edge Stitched Yes
Voice Coil Diameter 2 1/2 "
Voice Coil Wire Type 4 Layer round
Voice Coil Former Kapton
Extended Pole Yes
Vented Pole Yes
Lead Configuration 90 Degree Separation
Compression Terminals Yes
Primary Box Type Sealed or Vented
Dust cap Style Inverted
Dual Voice Coil Yes

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Your ALT-Text here Your ALT-Text here Your ALT-Text here Technical Specs - Thiele-Small parameters Your ALT-Text here Your ALT-Text here Your ALT-Text here
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  SQ15D2 SQ15D4
Power Rating RMS Cont. 500 Watts 500 Watts
Max Power Rating-Unclipped Amp 1000 Watts 1000 Watts
Freq Response 15*-100 Hz 20-100 Hz
Nominal Imp 2 + 2 Ohms 4 + 4 Ohms
Voice Coil 2 1/2"  4 layer 2 1/2" 4 layer
FS 19.74 Hz 22.6 Hz
Qms 7.421 12.2
Qes 0.5159 0.65
Qts 0.4824 0.62
Vas 212.63 Liters 206.4 Liters
Cms 0.1496E-03 M/N 0.1453E-03 M/N
Re 3.71 Ohms 7.4 Ohms
BL 19.68 Newtons/Amp 23.4 Newtons/Amp
Sd 0.100603 Sq. M 0.100 Sq. M
Mms 0.434576 kg 340 gm
Hvc 1.6" 1.6"
Hag 0.5" 0.5"
Xmax 0.55" 0.55"
Xlin 1.10" 1.10"
Ref Eff 0.3047% 0.35%
Predicted Output 87.04 DB/1W/1M 87.7 DB/1W/1M

* 1000 watts max. in recommended box = 1.5 - 3.3 cu. ft. sealed box or 2.0 - 6.0 cu. ft. ported. 500 watts continuous RMS in recommended boxes.

** At reduced max. power in ported home theater boxes 10 - 12 cu. ft. 17-100 Hz in most car audio applications.
 

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As an aid to the design or selection of enclosures,
performance specifications for a variety of system
configurations are available by selecting from the size
categories listed below.
The illustration defines the enclosure types.

Enclosure types

Box Types

Click picture to view response curve

 SQ15D2 SQ15D4

1.50 cu ft sealed

 Performance curve Performance curve

2.0 cu ft sealed

 Performance curve Performance curve

3.0 cu ft sealed

 Performance curve Performance curve

3.0 cu ft ported

 Performance curve Performance curve

4.5 cu ft ported, 20 Hz

 Performance curve Performance curve

4.5 cu ft ported, 37/33 Hz

Performance curve

Performance curve

4.50 cu ft ported, single 115 SQSPB Super Bass M

 Performance curve Performance curve

5.0 cu ft sealed

 Performance curve Performance curve

6.0 cu ft sealed

Not

Recommended

 Performance curve

6.0 cu ft ported

 Performance curve Performance curve

10.0 cu ft ported

 Performance curve Performance curve

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Your ALT-Text here Your ALT-Text here Your ALT-Text here Drawings and Dimensions Your ALT-Text here Your ALT-Text here Your ALT-Text here
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Drawings

A 0.400"
B 3.90"
C 5.350"
D 8.025"
E 6.490"
F 13.75"
G 15.40"
   
M 14.80" Sq
N 0.202"
O 0.325"
   
R 1.015"
S 0.700"
T 2.15"
   
U  
V  
W  
   
X 0.220"
Y 0.445"

Price and buying information in the "Speaker Store"

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Credence Speakers, Inc. © 2008