Soundstream spl-10 User Manual

4 

SELECTING AN ENCLOSURE 

There are several different enclosure designs for different applications.  
The SPL subwoofers work very well in all the following enclosure 
designs.  It is up to you to select the specific enclosure that will work 
the best for your particular application. 
 

Infinite baffle is the simplest type of subwoofer installation.  In this type 
of installation, the woofer(s) is mounted to a baffle which is then 
mounted to either the rear deck or back seat of the vehicle.  The best 
results are achieved when the trunk area is virtually airtight and 
isolated from the passenger compartment.   

Sealed enclosures are relatively simple to build and install, as all that is 
required is an airtight box.  The larger the sealed enclosure, the more 
the performance resembles that of an infinite baffle installation.   

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 

      

Cons 

•

Very good low frequency 
extension 

•

Very good transient re-
sponse 

•

High power handling 

•

Medium efficiency 

      

Cons 

•

Excellent low frequency extension 

•

Excellent transient response 

•

Uses almost no trunk space 

•

Lower power handling 

•

Low to medium efficiency 

SEALED

9 

 
 
 
 
SUGGESTED ENCLOSURES (Continued) 
 
 
Sealed Bandpass 

•

Enclosure #54 

•

Rear = 2.8 ft

3

 sealed 

•

Front = 2.2 ft

3

 @ 55 Hz  (Four 4" x 11.5" ports) - High 

output with good low frequency extension.  Good for 
Rock or Rap. 

 
 

•

Enclosure #55 

•

Rear = 1.3 ft

3

sealed 

•

Front = 2.2 ft

3 

@ 77Hz (Four 4" x 3.25" ports) - Very high output.  Great 

for Rap music. 

 

Sealed Bandpass (SBP)