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10 

 

 

 
 

SPECIAL DESIGN FEATURES! 

 

Custom-designed Cast Frame Basket for deep excursion and precise 
alignment of the voice coil. 

Custom chrome top and back plates for show-quality installations in any 
vehicle! 

Nearly 2 1/2" peak-to-peak maximum excursion for producing awesome 
sound levels with just a single woofer! 

 
 
 
 
 
Infinite Baffle 

Excellent performance for all types of music at moderate levels 

 
 
 
Sealed 

1.5 ft

3

 - Good linear response, excellent small enclosure.  

Excellent for high SPL, multiple driver applications. 

 

2.0 ft

Good response, excellent all around enclosure.   

 
 
 
 
 
 
Vented 

3.0 ft

3

 @ 27 Hz (Two 4" x 22" ports) - High output with good 

low frequency extension.  Good small enclosure. 

  

4.0 ft

3

 @ 32 Hz (Three 4" x 16" ports) - High output with 

excellent low frequency extension.  Great for Rock music 

 

 

 

Frequency Response (Hz)

 

25-500

 

25-500

 

Sensitivity (2.83v/1m)

 

95 dB

 

96 dB

 

Impedance (nominal Z, ohms)

 

 

2

 

Rated Program Power, Watts

 

400

 

800

 

Fs (Hz)

 

25

 

28

 

Qts

 

.33

 

.33

 

Qms

 

6.80

 

7.82

 

Qes

 

.35

 

.35

 

Vas (ft

3

)

 

7.98

 

7.24

 

Vas (liters)

 

226

 

205

 

Vas (m

3

)

 

.226

 

.205

 

Cms (um/N)

 

201

 

183

 

DCR (ohms)

 

1.68

 

2.01

 

Levc (mH) @ 1 KHz

 

1.02

 

.67

 

BL (Tesla m)

 

12.4

 

13.3

 

Sd (in

2

)

 

131.0

 

131.0

 

Sd (m

2

)

 

.0845

 

.0845

 

Sd (cm

2

)

 

845

 

845

 

X max; one way (linear mm)

 

7.0

 

10.0

 

X max; one way (peak mm)

 

22

 

22

 

Vd (linear cm

3

)

 

592

 

845

 

Vd (peak cm

3

)

 

1859

 

1859

 

Vd (linear m

3

)

 

0.000592

 

0.000845

 

Vd (peak m

3

)

 

0.001859

 

0.001859

 

Mms (grams)

 

206

 

173

 

Magnet Assembly (oz)

 

238

 

345

 

Magnet Weight (oz)

 

104

 

157

 

Vf (volume of frame, in

3

)

 

320

 

385

 

Coil length (mm)

 

27.9

 

28.6

 

Preliminary  

SPECIFICATIONS & THIELE/SMALL PARAMETERS 

Summary of Contents for SPL 15

Page 1: ... i E S SOUNDSTREAM TECHNOLOGIES 120 Blue Ravine Road l Folsom l California 95630 USA tel 916 351 I 288 fax 916 351 0414 REV A 7 22 97 Subwoofers I t 1 OWNER S MANUAL AND i I INSTALLATION GUIDE b UNDSTREAM T E C H Iv 0 L O G I E S ...

Page 2: ... Heavy Cast Aluminum Basket on the SPL160 and Heavy Gauge Steel Basket on the SPL15 provide extra rigidity and damping Textured Blue Powder Coating ensures durability and lasting superb good looks Ultra High power handling Voice Coil with Glass Polymide Former increases power handling and performance Aerospace grade adhesives and materials insure longevity and high performance Dual Voice Coil Inpu...

Page 3: ...sion Good small enclosure 4 0 ft3 32 Hz Three 4 x 16 ports High output with excellent low frequency extension Great for Rock music 3 Frequency Response Hz 25 500 25 500 Sensitivity 2 83v 1m 95 dB 96 dB Impedance nominal Z ohms 2 2 Rated Program Power Watts 400 800 Fs Hz 25 28 Qts 33 33 Qms 6 80 7 82 Qes 35 35 Vas ft3 7 98 7 24 Vas liters 226 205 Vas m3 226 205 Cms um N 201 183 DCR ohms 1 68 2 01 L...

Page 4: ...rmance resembles that of an infinite baffle installation Vented Enclosure Vented enclosures use a sealed enclosure with a vent or port in the box Pros Cons Good low frequency exten sion down to the tuning fre quency High power handling down to the tuning frequency Higher output than sealed enclosures Low power handling below the tuning fre quency Almost no output below the tuning fre quency Pros C...

Page 5: ...E VOLUMES When constructing any type of enclosure you must be aware that the outside dimensions DO NOT represent the true Net volume inside Such things as woofers ports thickness of enclosure material dividing walls and any internal bracing will reduce the total amount of the actual air space available The following worksheet has been designed to provide you with the necessary steps to accurately ...

Page 6: ...tuff the chamber with 50 75 filling approximately 1 5 pounds per cubic foot of fiberglass insulation or Dacron For Vented Enclosures staple 1 inch thick fiberglass insulation or Dacron to all walls of the enclosure except the baffle to which the woofer is mounted Use the supplied gasket to seal the woofer in the enclosure and eight 8 wood screws or T nuts and bolts Progressively tighten each of th...

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