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Boston Acoustics SPG-TR

10" TunableRadiator™ for the SPG555 Subwoofer

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Boston Acoustics SPG-TR

10" TunableRadiator™ for the SPG555 Subwoofer

$54.95

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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$39.99

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2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

$7.99

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12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

$8.99

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  • High performance TunableRadiator
  • Increases overall bass output by +3dB without added amplifier power or enclosure volume
  • Delivers ported performance without additional amplification or the vent noise associated with ported enclosures
  • Three user tunable adjustments (30Hz, 35Hz, 45Hz) underneath the removable dustcap
  • Features a low-profile, cast aluminum chassis, integral sealing gaskets and a consistent design
  • Suitable for high output needs where space is limited
  • User-tunable adjustments
  • Slim mount design where only 4" of depth is required
  • 1-year Manufacturer's warranty

Subwoofer Specifications

Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Magnet Structure
Defines the overall structure of the subwoofers magnet.

Recommended Enclosure Specifications

Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
67%
4 Star
33%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
5.0
db_Master

Maryland

Overall
Durability
Value
Features
Design
Usability
Amazing sound

November 4, 2011

This made my SPG555 come alive. I have it in a 1 cubic foot sealed enclosure and the sound is amazing. This really helped get the full potential.

7 of 9 found this helpful

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db_Master

Maryland

Overall
Durability
Value
Features
Design
Usability
Amazing sound

November 4, 2011

This made my SPG555 come alive. I have it in a 1 cubic foot sealed enclosure and the sound is amazing. This really helped get the full potential.

6 of 8 found this helpful

Was this review helpful to you?

Fx

Uruguay

Overall
Durability
Value
Features
Design
Usability
Great complement for SPG-555

April 10, 2011

I bought this passive radiator to complemen my already great SPG-555, because I didn't want to go ported. It sounds great, making the system sound lower than with the SPG-555, without the problems associated with having a port. Great value for your money. As resistant as the woofer, as the same materials are used. Can be tuned with the attached weights.

6 of 9 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $37.85

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $74.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $7.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $8.99

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

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Product Summary

Manufacturer

Model Number

SPG-TR

UPC

690283450106

Weight

5.00lbs

Internal SKU

spgtr

Internal Product ID

20013

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Boston Acoustics SPG-TR