Soundstream spl-10 用户手册

8 

 

 
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

3 

- Good linear response, excellent all around 

enclosure. 

   
 
 
 
Vented 

•

3.25 ft

3

 @ 27 Hz (Two 4" x 19.75" ports) - High output with 

good low frequency extension.  Good small enclosure. 

  
 

•

6.7 ft

3

 @ 21 Hz (Two 4" x 15" ports) - High output with 

excellent low frequency extension.  Great for Rock music 
or home theater applications.  

 
 
 

Sealed (S)

Vented (V)

5 

which is tuned to resonate at a specific frequency.   

Sealed bandpass enclosures enclose both sides of the  
woofer(s).  An airtight enclosure is built around the front and back of 

the woofer and one 
chamber is ported to 

a specific frequency. 
 
 
 
 

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 calculate the 
absolute (Net) internal volume of any given enclosure. 
 
Calculating Cylindrical Port Volume 
 
1.

Measure the outside diameter of the port and divide by 2 for the 
radius. 

 
2.

Square the radius and multiply by 3.14 (

π

) to arrive at outside port 

area. 

 
3.

Multiply the area by the length of 
the port inside the enclosure for the 
port volume. 

 

       

Cons 

•

High power handling 
within the operating 
frequencies 

•

Very high output within 
the range of the oper-
ating frequencies 

•

Low power handling 
beyond the tuning 
frequency 

•

Poor to moderate 
transient response 

•

Poor low frequency 
extension