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Boston Acoustics GTA-400M

400W RMS, GTA Series Class D Monoblock Car Amplifier

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GTA Series Monoblock Class D Car Amplifier • 400W RMS • 250 Watts x 1 Chan. @ 4 Ohms • 400 Watts x 1 Chan. @ 2 Ohms • Q-Tune™ Bass Optimization Circuitry • SST™ (Symmetrical Signal Topology) • Wrap-Around Heatsink

Learn more about the gta400m

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This item has been discontinued

Product Highlights


GTA Series Monoblock Class D Car Amplifier • 400W RMS • 250 Watts x 1 Chan. @ 4 Ohms • 400 Watts x 1 Chan. @ 2 Ohms • Q-Tune™ Bass Optimization Circuitry • SST™ (Symmetrical Signal Topology) • Wrap-Around Heatsink

Description


High Performing GTA Amplifiers

The GTA-400M is a Class D monoblock amplifier rated at 250W x 1 channel @ 4 ohms, and 400W x 1 channel @ 2ohms, making it perfect when amplifying a single subwoofer or even a pair of entry-level subwoofers within the allotted power ratings. Its Class D rating will allow for the highest efficiency possible while still maintaining a good value.

GTA series amplifiers have been manufactured by Boston Acoustics to provide the perfect amount of power to any speaker, subwoofer, and car audio system at any configuration. GTA amplifiers feature a Symmetrical Signal Topology (SST™) that creates noise cancellation by using asymmetrical balanced inputs. This makes them more efficient with less distortion. The option of low-level, or high-level inputs will allow the installation of these amplifiers into any system with ease. The 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 fully adjustable low-pass/high-pass crossovers will allow for complete control of all frequencies allowing for personalized tuning of your audio system to better meet your musical needs and preferences. GTA amplifiers offer high performance with advanced features and technologies. So when looking for reliability, quality, and crisp clean power Boston Acoustics' GT series amplifiers are your only stop.

General Features:
  • GTA Series Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 250 watts x 1 chan.
    • 2 ohms: 400 watts x 1 chan.
  • MOSFET power supply
  • Bass Remote Details (Boston Acoustics GTA-RSL required and sold separately)
  • LED power and protect indicators
  • Boston’s Q-Tune™ circuitry for simple bass output optimization
  • Mono channel operation
  • Speaker-level inputs with signal sensing for automatic turn-on
  • Preamp RCA outputs
  • 3-Way System Protection circuitry (thermal, overload, and speaker short protection)
  • SST™ (Symmetrical Signal Topology) system uses balanced asymmetrical inputs for noise cancellation
  • Recessed control panel for clean installation
  • Wrap-around heatsink design for ample cooling in multiple mounting positions
  • IMS™ (Integral Mounting System) reduces the amplifier footprint
  • All input/output connections are located on one side of the amplifier to ease installation and wire management
  • Optimal angled speaker and power blocks for easy wire connections
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable low-pass filter (50-150 Hz, 12 dB/octave)
  • Subsonic filter (10-50 Hz, 12dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 10-150 Hz
  • Dimensions: 8-3/8"D x 10-5/8"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 SonicElectronix.com warranty
Package Includes:
  • Owners Manual
  • 3mm Hex Wrench
  • 4mm Hex Wrench
  • Speaker Level Input Cable
  • 4 Mounting Screws
  • 40A Replacement ATC Fuse

Specifications & Details


Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
250 watts x 1 channel
RMS Power @ 2 ohms
400 watts x 1 channel
RMS Power @ 1 ohm
Not Stable
Amplifier Specifications
Amplifier Class
D
Number of Channels
1 - Mono
Total RMS Power Output
400 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
Not Bridgeable
THD at Rated RMS Power
0.05%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
50 - 150 Hz
Subsonic Filter
10 - 50 Hz
Signal-to-Noise Ratio
90 dB
Remote bass/level controller
Optional (Accessory required and sold separately)
Fuse Rating
40A x 1 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

GTA-400M

Weight:

8.00lbs

Internal SKU:

gta400m

Internal Product ID:

20001

Product and How-to Videos


Customer Ratings & Reviews



5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Great little block...

Great block I had it for 4 months and then went to something more powerful. Great for their subwoofers selection the G3 was used with a tuneable radiator that boston sells.

By john on December 28, 2010

5

found this helpful.

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