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Introducing the newest additions to the GTuned

subwoofer enclosure line, the SPG555SS (Sealed

Single) and the SPG555PS (Ported Single) enclosures. Designed specifically for the SPG555 
subwoofer, the SPG555SS and the SPG555PS deliver SPG performance with the convenience of  a
premade enclosure.  The enclosures are built from 

3

4

” MDF and utilize a double wall front baffle that

adds rigidity to the baffle. Furthermore, the SPG555 is counter sunk into the top baffle minimizing the
space needed in front of the enclosure. Wrapped in high quality automotive OEM grade carpet, the
appearance complements the SPG555 perfectly. 

The SPG555SS enclosure is modeled off of the recommended sealed enclosure at 1.0 Ft

3

for 

optimum power handling and sound quality. The SPG555PS enclosure is a design that offers some
attributes of each recommended ported design delivering a lower tuning than the high output 
enclosure and better efficiency then the sound quality enclosure resulting in stunning performance
regardless of amplifier power or program. Like all GTuned

enclosures, the SPG555SS and

SPG555PS have a final impedance of 2

, extracting maximum power from GT Amplifiers. 

SPG555SS Performance Features:

Sealed enclosure optimized to deliver high output
sound quality performance.

1000 Watt RMS power handling.

A stout 

3

4

” MDF enclosure with a double wall front 

baffle with fully CNC cut with dadoed ends assure
that the cabinet will not flex, leak, or break.

SPG555SS Installation Features:

Heavy duty nickel plated input terminals plus 
internally wired with high quality 14 AWG. wire.

Compact design will fit in most applications.

Included mounting brackets allow for easy 
installation and removal.

SPG555PS  Performance Features:

Ported design delivers high output and optimized 
tuning assures that no low note will be missed. 

Port maximizes surface area to reduce port noise
while adding structural rigidity to the enclosure.

1000 Watt RMS power handling.

A stout 

3

4

” MDF enclosure with a double wall front 

baffle with fully CNC cut with dadoed ends assure that
the cabinet will not flex, leak, or break.  

SPG555PS  Installation Features:

Heavy duty nickel plated input terminals plus 
internally wired with high quality 14 AWG. wire.

Trapezoid shape and 30 

1

8

” width allows the enclosure

to fit between the shock towers of many vehicles.

©2007 Boston Acoustics, Inc.  Covered by patents issued and pending.  All Rights Reserved. GTuned is a trademark and Boston, Boston Acoustics, and the Boston
Acoustics logo are registered trademarks of Boston Acoustics, Inc. All specifications are subject to change. 
Boston Acoustics, Inc. 300 Jubilee Drive, Peabody, MA 01960  Phone # 978-538-5000  Fax # 978-538-5100  Web : www.bostonacoustics.com

Model 

Enclosure Type

Woofer

Impedance

Height

Width

Depth (1)

Depth (2)

SGP555SS

Sealed

SPG555-2

2

13

1

4

16 

1

8

12”

15 

3

4

SPG555PS

Ported

SPG555-2

2

13

3

4

30 

1

8

13 

3

4

17 

3

4

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