Garage
Shop

See all parts that fit your 1974 Colt

Boston Acoustics GT-275 Open Box

Open Box 300W RMS GT Reference Series 2-Channel Amplifier

Boston Acoustics
Shop all Boston Acoustics
Product videos
highlight-star-icon

GT Reference Series 2-Channel Amplifier • 75W x 2 Chan. @ 4 Ohm • 100W x 2 Chan. @ 2 Ohm • Fully Computer-Controlled Diagnostics System • Q-Tune™ Technology • Fan Cooled Aluminum Alloy Heatsink

Learn more about the LS-gt275-OB

We apologize

This item has been discontinued

Product Highlights


GT Reference Series 2-Channel Amplifier • 75W x 2 Chan. @ 4 Ohm • 100W x 2 Chan. @ 2 Ohm • Fully Computer-Controlled Diagnostics System • Q-Tune™ Technology • Fan Cooled Aluminum Alloy Heatsink

Description


Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Boston Acoustics GT Reference Series Amplifiers

Boston Acoustics GT Reference amplifiers are perfect for just about any situation and any installation. The GT-275 2-channel amplifier has a CEA-2006-A power rating of 75W x 2 channels @ 4 ohms, 100W x 2 channels @ 2 ohms, 225W x 1 channel bridged @ 4 ohms, and 300W x 1 channel bridged @ 2 ohms. All of these ratings give the amplifier unsurpassed versatility, whether you are amplifying a set of speakers or even a subwoofer. Q-Tune™ technology will combine your main speakers with the subwoofers, giving you bass up front and a whole new way of enjoying your music. The unique forced air cooling system allows for extreme heat dissipation and installation anywhere without the need to worry of thermal overload. Variable low and high crossovers combined with the Q-Control feature will give you complete control of all frequencies to better fine tune your audio system to better meet your personal preferences. GT Reference amplifiers provide unmatched technology and reliable power output, they are easy to install and are capable of stereo or mono operation with its DualMode™ feature. With all of its features and technologies GT Reference amplifiers are a great choice when selecting an amplifier.

  • GT Reference Series 2-Channel Reference Amplifier
  • Item Condition: Open Box
  • RMS Power Rating(CEA-2006-A):
    • 4 ohm: 75 watts x 2 chan.
    • 2 ohm: 120 watts x 2 chan.
    • Bridged, 4 ohm: 225 watts x 1 chan.
    • Bridged, 2 ohm: 300 watts x 1 chan.
  • RMS Power Rating(12V):
    • 4 ohm: 55 watts x 2 chan.
    • Bridged, 2 ohm: 230 watts x 1 chan.
  • Red LED power badge and orange protect indicator
  • 2/1 channel operation
  • Adjustable mounting feet (mounting feet move along rails to allow the easiest installation)
  • Fully computer-controlled diagnostics system (continuously monitors amplifier in case of thermal overload, short circuits, or over voltage)
  • Q-Tune™ technology combines sophisticated crossover adjustments with Q-Control settings to seamlessly transition rear bass to the front sound stage
  • Uses a 30 amp ANL fuse
  • Heavy duty fan cooled aluminum alloy heatsink
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable high-pass filter (20-350 Hz, 12 dB/octave)
  • Variable low-pass filter (50-350 Hz, 12 or 24 dB/octave)
  • Signal Voltage Input (200mV-8V)
  • Frequency response: 10-95,000 Hz
  • Dimensions: 8-3/4"L x 9"W x 2-3/8"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 90-Day Manufacturer's warranty

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
75 watts x 2 channel
RMS Power @ 2 ohms
120 watts x 2 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
300 watts x 1 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total RMS Power Output
300 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
2 ohms
THD at Rated RMS Power
.03%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 350 Hz
Low-Pass Crossover Frequency
20 - 350 Hz
Signal-to-Noise Ratio
100 dB
Remote bass/level controller
No
Fuse Rating
30A x 1 
Warranty and Return Policy
Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

GT-275-OB

Weight:

5.75lbs

Internal SKU:

LS-gt275-OB

Internal Product ID:

52545

Product and How-to Videos


Customer Ratings & Reviews


Boston Acoustics GT-275 Open Box thumbnail image

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



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


T0D415 small

Rockford Fosgate Power T0D415

800W 15" Power T0 Series Dual 4 ohm Subwoofer

(1)

$599.99

List price $749.98

3448B001 small

Canon PowerShot SD1200 IS Digital ELPH (Light Gray)

2.5" TFT-LCD 10 Megapixel Digital Camera with 4x Digital Zoom

$199.99

List price $229.99

3449B001 small

Canon PowerShot SD 1200 IS Digital ELPH (Blue)

2.5" TFT-LCD 10 Megapixel Digital Camera with 4x Digital Zoom

(1)

$204.99

List price $229.99

P3 Blue Refurbished small

Bowers & Wilkins P3 Blue Refurbished

Portable, Folding On-ear Headphones

$99.00

List price $299.99

P3 White Refurbished small

Bowers & Wilkins P3 White Refurbished

Portable, Folding On-ear Headphones

$99.99

List price $129.00

S12L7_COMBO small

Kicker S12L7 12" Solo-Baric + 12" Logo Enclosure

$224.99

List price $449.99

BAK42BK,GM-A5702 small

Pioneer GM-A5702 2 Channel Amplifier w/ Complete 4 AWG Amp Kit

480W RMS 2-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

(67)

$149.98

List price $239.99

2-KFC-W112S_MMA2000.2_BAK42BK small

Kenwood 12" KFC Subs + Autotek Amp Package

2 Kenwood KFC-W112S 12" Subs, Autotek MMA 2000.2 Amp, Wiring Kit and Enclosure

$224.29

List price $589.95

Related Searches


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

1974 Dodge Colt

2017 Chevrolet Trax

2004 Pontiac Aztek

2023 MINI Cooper

2009 Suzuki SX4

2010 Dodge Ram 1500

1994 Suzuki Swift

1959 GMC 250

1978 Pontiac LeMans

2001 Volkswagen Beetle

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.