Garage
Shop

See all parts that fit your 2014 Countryman

Boston Acoustics SPG-TR

10" TunableRadiator™ for the SPG555 Subwoofer

Product videos
highlight-star-icon

High performance TunableRadiator • Increases overall bass output by +3dB without added amplifier power or enclosure volume • Three user tunable adjustments (30Hz, 35Hz, 45Hz) underneath the removable dustcap

Learn more about the spgtr

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
51KST2504 main

Kicker 51KST2504

450W Peak (150W RMS) 1" KS Series 4-ohm Car Tweeters

1
-14.29%

$119.99

List price $139.99

Product Highlights


High performance TunableRadiator • Increases overall bass output by +3dB without added amplifier power or enclosure volume • Three user tunable adjustments (30Hz, 35Hz, 45Hz) underneath the removable dustcap

Description


  • 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 Wiring Guide



Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

59
-19.05%

$339.99

List price $420.00

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

AVH-3500NEX main

Pioneer AVH-3500NEX

7" Single DIN Flip-Out Touchscreen CD/DVD Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

9
-10.75%

$829.99

List price $930.00

MVH-S322BT main

Pioneer MVH-S322BT

Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa

7
-13.34%

$129.99

List price $150.00

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

39
-33.50%

$399.00

List price $600.00

Limited time!
iLX-W670-M main

Alpine iLX-W670-M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

126
-30.01%

$349.95

List price $500.00

KMM-X705 main

Kenwood eXcelon KMM-X705

Single DIN Digital Media Receiver with Bluetooth, Built-in Alexa (Sirius XM Ready)

6
-20.40%

$199.00

List price $250.00

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99


Best selling similar products

SQW104 small

NVX SQW104

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 83 dB

$249.99

List price $299.99

10W0v3-4 small

JL Audio 10W0v3-4

• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Mount depth: 4.90"
• Sensitivity: 84.07 dB

(89)

$139.99

List price $139.99

10TW3-D4 small

JL Audio 10TW3-D4

• RMS Power: 400 watts
• Polymer/Mica Composite Cone
• Rubber Surround
• Impedance: Dual 4 ohm
• Mount depth: 3.25"
• Sensitivity: 82.10 dB

(29)

$519.99

List price $519.99

HS102D small

Cerwin Vega HS102D

• Peak Power: 800 watts
• RMS Power: 200 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Treated Foam Surround
• Mount depth: 3.54"
• Sensitivity: 83.1 dB

(4)

$99.99

List price $119.99

SPK-10S4 small

AudioControl SPK-10S4

• RMS Power: 700 watts
• Impedance: Single 4 ohm
• Paper Fiber with Mica Coating Cone
• Rubber Surround
• Mount depth: 5.32"
• Sensitivity: 83.7199 dB

$209.00

List price $229.00

SPK-10S2 small

AudioControl SPK-10S2

• Peak Power: 700 watts
• RMS Power: 500 watts
• Impedance: Single 2 ohm
• Paper Fiber with Mica Coating Cone
• Rubber Surround
• Mount depth: 5.32"
• Sensitivity: 82.2488 dB

$209.00

List price $229.00

TN10-04 small

MTX TN10-04

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4-11/16"
• Sensitivity: 84.9 dB

(15)

$79.95

List price $59.95

TS-D10LS4 small

Pioneer TS-D10LS4

• Peak Power: 1300 watts
• RMS Power: 350 watts
• Impedance: Single 4 ohm
• IMPP - Aramid Fiber and Carbon Fiber Cone
• Rubber Surround
• Mount depth: 3-1/4"
• Sensitivity: 76 dB

$153.00

List price $260.00

5510-44 small

MTX 5510-44

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 5.625"
• Sensitivity: 83.5 dB

(15)

$189.95

List price $159.95

R2-W10D2 small

Alpine R2-W10D2

• Peak Power: 2250 watts
• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 5.92"
• Sensitivity: 82.3 dB

(3)

$319.95

List price $480.00

Item Details


Manufacturer:

Model Number:

SPG-TR

Weight:

5.00lbs

Internal SKU:

spgtr

Internal Product ID:

20013

Product and How-to Videos


Customer Ratings & Reviews


Boston Acoustics SPG-TR thumbnail image

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



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Amazing sound

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.

By db_Master on November 4, 2011

19 found this helpful


Amazing sound

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.

By db_Master on November 4, 2011

17 found this helpful


Great complement for SPG-555

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.

By Fx on April 10, 2011

18 found this helpful




T5512-44 small

MTX Audio T5512-44

Dual 4 ohm 12" Thunder5500 Subwoofer

(19)

$69.99

List price $199.95

AW120T small

Audiobahn AW120T

Single 4 ohms 12" Excursion Series Subwoofer

(8)

$44.99

List price $169.99

HD2150 small

EFX HD2150 by Scosche

300W Max, 2-Channel Amplifier (HD-2150)

(2)

$49.99

List price $149.99

EC-50 (2TB) small

ESP EC-50 (2TB)

2-Tone Sunburst Electric Guitar

$109.99

List price $285.00

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

1977 Ford Bronco

2014 MINI Countryman

1978 Chrysler LeBaron

2008 Suzuki SX4

1981 GMC G2500

1996 Dodge Grand Caravan

2005 Cadillac STS

2007 Jeep Wrangler Unlimited

2000 Toyota Avalon

2009 Cadillac STS

Vehicle
Store
Delete

2011 Harley Davidson FLSTF Fat Boy

2002 Harley Davidson FLSTFI Fat Boy

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.