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Boston Acoustics GT-2125

600W RMS, GT Reference Series 2-Channel Amplifier

4.7

(3 reviews)

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Boston Acoustics GT Reference Series Amplifiers

Boston Acoustics GT Reference amplifiers are perfect for just about any situation and any installation. The GT-2125 2-channel amplifier has a CEA-2006-A power rating of 125W x 2 channels @ 4 ohms, 200W x 2 channels @ 2 ohms, 400W x 1 channel bridged @ 4 ohms, and 600W 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.

Amplifier Features:

  • GT Reference Series 2-Channel Amplifier
  • RMS Power Rating(CEA-2006-A):
    • 4 ohms: 125 watts x 2 chan.
    • 2 ohms: 200 watts x 2 chan.
    • Bridged, 4 ohms: 400 watts x 1 chan.
    • Bridged, 2 ohms: 600 watts x 1 chan.
  • RMS Power Rating(12V):
    • 4 ohms: 95 watts x 2 chan.
    • Bridged, 2 ohms: 475 watts x 1 chan.
  • Remote bass level input (GT-RSL remote level control sold separately)
  • 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 40 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: 13-1/4"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.
  • 1-year Manufacturer's warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms125 watts x 2 channels
RMS Power @ 2 ohms200 watts x 2 channels
RMS Power @ 1 ohmNot Stable
Bridged RMS Power600 watts x 1 channel
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassAB
Number of Channels2
Total Peak Power OutputN/A
Total RMS Power Output600 watts
Maximum Input Gauge Size4 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance Bridged2 ohms
THD at Rated RMS Power.03%
Speaker Level InputsNo
Preamp OutputsNo
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency20 - 350 Hz
Low-Pass Crossover Frequency50 - 350 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio100 dB
Channel SeparationN/A
Bass BoostN/A
Bass/Gain RemoteYes
Fan CooledYes
Fuse Rating40A x 1 
CEA-2006 CompliantYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Boston Acoustics GT-2125
Average Customer Rating is 4.7 out of 5 stars:
4.7
based on 3 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
67%
4 star:
.
.
33%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.3
Value
4.3
Features
4.3
Design
4.3
Usability
5.0
what's this?
Most Helpful Customer Reviews:
October 16, 2011 OK
Review by
LT from lagrange GA
Overall
Durability
Value
Features
Design
Usability
This is an ok amp. Running a set of dls reference m6 with it. Doesn't get hot at all running at about 3 ohms. Don't know if i would use on subs though. deff not 2 ohms bridged gets kinda warm as is but does come with a fan right by the heat sink on the back.
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January 21, 2011 Awesome amp!
Review by
Grant from Manitoba, Canada
Overall
Durability
Value
Features
Design
Usability
I bought this and hooked it up with an 12" Alpine Type R. WOW. This thing puts out unreal power! Better than a Alpine 500 Amp with 2 type S's.
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October 24, 2010 the best there is!
0 of 1 people found the following review helpful:
Review by
car audio retailer. from billings mt.
Overall
Durability
Value
Features
Design
Usability
Boston gt series amplifiers are the best. Just compare the thd- distortion level. Also they have by far the widest range of frequency reproduction of any amp I have ever seen! And that is all you need for a crystal-clear extremely loud system. Buy these amps for subs and interior. U won't regret it.
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Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
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Dual Amplifier 4 Gauge Amp Installation Kit w/ Distribution Blocks
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Bass Remote Control
Control the volume level of your bass and amplifier from the front of the vehicle.
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Boston Acoustics GT-RSLBoston Acoustics GT-RSL
Made specifically for the amplifier your viewing.
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Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$24.99
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
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RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Directed Silver Series Audio Interconnect Cable ** LOW PRICE **Directed Silver Series Audio Interconnect Cable ** LOW PRICE **
20 ft. of 2-Channel Silver Series RCA Interconnect Cable with Twisted Pair Construction
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Monster Cable 400 Series XTREME RCA Interconnect CablesMonster Cable 400 Series XTREME RCA Interconnect Cables
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 8-cut turbine MirrorChrome connectors, and 3-way time correct windings for the ultimate RCA cable!
$69.00
Kicker X-Series RCA Interconnect CableKicker X-Series RCA Interconnect Cable
16.5 ft. of 2-Channel Interconnects with twisted pair conductors, K-cut gold plated contacts, and hyper-flex technology for easy installation!
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StreetWires ZN9 Series Interconnect CableStreetWires ZN9 Series Interconnect Cable
16.4 ft. of 2-Channel ZN9 Cable with Rhodium-plated connectors, twisted-pair construction, and the the highest quality of signal transfer.
$54.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB4StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing
$7.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
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Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
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AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
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AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
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Main Product
 ProductPriceAdd?
Boston Acoustics GT-2125Boston Acoustics GT-2125$149.95

Product Summary

Manufacturer: Boston Acoustics
Model number: GT-2125
UPC: 690283474638
Weight: 9.00 lbs
Internal SKU: gt2125
Internal product ID: 17785

Price Information

$299.95

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$149.95

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