Boston Acoustics SPG555 manual Changing The Tuning On The SPG-TR TunableRadiator

SPG-TR TunableRadiator™ Description		SPG-TR TunableRadiator™ Tuning Frequency Chart
Designed to work perfectly with the the Boston SPG555		For The Recommended SPG555/SPG-TR Enclosure (1.0ft3)
		Mode Type	Tuning Freq.	Small Tuning Mass	Large Tuning Mass
subwoofer, the SPG-TR allows you to use the SPG555 in
		Tuning Mode 1:	45Hz	X	X
a 1.0Ft3 enclosure and delivers low bass similar to a
		Tuning Mode 2:	35Hz	1	1
ported enclosure while maintaining the transient
		Tuning Mode 3:	30Hz	X	2
response and compact size of a sealed enclosure.
		Key: X = No Mass Used, 1 = One Mass Used, 2 = Two Mass Used
Provided tuning masses allow you to customize the
response of the SPG-TR to best match your vehicle and		Changing The Tuning On The SPG-TR TunableRadiator™
listening preference.		Note: The SPG-TR TunableRadiator™ is shipped from the factory in “Tuning Mode #2”.
SPG-TR Specifications / Enclosure Recommendation		υ		1.Remove the six screws υ. Lift the
Model:	SPG-TR			dustcap off of the SPG-TR ϖ.
Nominal Size:	555cm2			2.On the bottom side of the dustcap
Mounting Cutout Diameter:	Use Provided Cutout Template	ϖ		ω, remove the center screw, lock
Mounting Depth:	4" (102mm)			washer, and washer that hold the
				mass to the dustcap.
(includes required clearance behind SPG-TR)
Recommended TunableRadiator™				3.Select the desired tuning mode by
Enclosure Volume*:	1.0 ft3 (28.3L)			placing the correct combination of
				mass, foam side down, on the
Q-Tune™: (HP & Q Setting)	Use SPG-TR Tuning / Q-Tune™	ω		center shaft. (use the tuning guide
	Setting Matrix Below			located above)
*Enclosure requires SPG555 (2Ω or 4Ω) and volume includes basket displacement for both the				4.Install the center screw, lock
SPG555 subwoofer and the SPG-TR TunableRadiator.				washer, and washer and tighten.

SPG-TR Tuning / Q-Tune™Setting Matrix							5.Re-install the dustcap and gasket
Model:		Tuning	Q-Tune™Setting				using all six screws.
Tuning Mode 1:		45Hz	42Hz@0.7				Warning: The dustcap is a structural part
Tuning Mode 2*:		35Hz	34Hz@1.0				of the SPG-TR and must be installed
							before use.
Tuning Mode 3:		30Hz	30Hz@1.2		SPG-TR Handle Installation Instructions
*Factory Tuning Mode					υ	90º	1.The handle is held in place by two
SPG555 / SPG-TR Enclosure Design Example							screws (included in the hardware
						45º
							kit). The handle can be positioned
						0º	eight different ways υ.
	D	In-Car Response w/ Q-Tune™			ϖ	-45º	2.Line up the handle with two of the
W
		Enclosure Response					six	screw	holes on	the dustcap.
		dB					Using the		provided	2.5mm tool,
		6					hand tighten the screws ϖ. The
		0
		-6					specific orientation of the handle
H							will	not	effect	performance,
		-12
		-18					however, to ensure proper tuning,
		-24					must be installed prior to using the
		-30					SPG-TR.
		-36			Warning: Choose the position of the handle wisely. Installing the screws into the dustcap will mar the area around
		5 Hz 10	50	100
					where the screw is installed. Although not visible with the handle installed in the original position, if the handle is
					moved, you will be able to see the enlarged screw holes from the previous install position.
Model:		SPG555 w/ SPG-TR			SPG-TR TunableRadiator™		Tuning Hardware
H = Height:		13" (33.0cm)
W = Width:		13" (33.0cm)				Screw*		Small Tuning Mass*
						Lock Washer*
D = Depth:		10.5" (26.7cm)
						Washer*
Gross Volume:		1.0 Ft3 (28.3L)						2 x Large Tuning Mass
Q-Tune™†: (HP & Q Setting)		Use SPG-TR Tuning / Q-Tune™						(1 installed* / 1 in hardware pack)
		Setting Matrix Above					*Pre-installed on SPG-TR from factory
Enclosure dimensions are internal and include displacement for both SPG555 & SPG-TR.					Boston Acoustics, Inc. 300 Jubilee Drive,		Peabody, MA		01960 USA
The enclosure shape is an example and these dimensions can be modified provided the exact					T: 978.538.5000	F: 978.538.5100 W: bostonacoustics.com
internal volume is retained and there is adequate clearance behind the SPG555 and the SPG-TR.					Q-Tune and TunableRadiator are trademarks and Boston, Boston Acoustics, and the Boston Acoustics
3⁄4-inch thick M.D.F. is recommended as a minimum
†Q-Tune™ is a feature found on Boston GT Amplifiers					logo are registered trademarks of Boston Acoustics, Inc. Specifications are subject to change without
					notice. All rights reserved. Covered by patents issued and/or pending.
										142-003133-0
					© 2008 Boston Acoustics, Inc.