Boston Acoustics SPG555 - Manual (Page 4)

General Information for both Sealed and Ported Designs
*All enclosure dimensions are internal and include basket and port displacement
The above enclosure shape is an example and these dimensions can be modified provided that the exact internal
volume is retained
3 ⁄
4
-inch thick M.D.F. is recommended as a minimum
† Q-Tune ™ is a feature found on Boston GT Amplifiers
Sealed Enclosure
Sealed Enclosure Explanation
A sealed enclosure is the best option if sound quality is of primary concern. It will offer the best
overall response across the low frequency audio spectrum, great transient response, and will allow for
the most seamless integration between the subwoofer system and front speakers. It is also half the
size of the sound quality ported design minimizing the space that needs to be dedicated to the
subwoofer enclosure.
Sealed Enclosure Specifications
Recommended Enclosure Volume*: 1.0 ft 3 (28.3L)
Q-Tune ™† (Highpass and Q Setting): 25Hz @ 0.707
Sealed Enclosure Example
Gross Volume: 1.0 ft 3 (28.3L)
Internal Height (H): 10 1 ⁄
2
" (26.7cm)
Internal Width (W): 13" (33.0cm)
Internal Depth (D): 13" (33.0cm)
Enclosure Designs