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Boston Acoustics GTA-1105

900W 5-Channel Class AB/D GTA Series Hybrid Amplifier

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GTA Series Class AB/D Hybrid 5-Channel Amplifier • MOSFET Power Supply • Optional Bass Remote Available • Symmetrical Signal Topology • Q-Tune Circuitry • Integral Mounting System • Wrap-Around Heatsink Design

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Product Highlights


GTA Series Class AB/D Hybrid 5-Channel Amplifier • MOSFET Power Supply • Optional Bass Remote Available • Symmetrical Signal Topology • Q-Tune Circuitry • Integral Mounting System • Wrap-Around Heatsink Design

Description


GTA Series High Performance Amplifier

Sonic Electronix is now carrying the new 2011 line of Boston Acoustics GTA Series Amplifiers. These amps come in Monoblock, 2-Channel, 4-Channel, and 5-Channel configurations as well as numerous different power ratings. Each one these GTA Series amplifiers feature a wrap-around heatsink design, SST (Symmetrical Signal Topology), IMS (Integral Mounting System), 3-way protection circuitry, fully adjustable Q-Tune circuitry, and much more.

The GTA-1105 is a 5-channel version of this series and has an RMS power rating of 70 watts x 4-channels + 250 watts x 1-channel wired at 4 ohms and 125 watts x 4-channels + 400 watts x 2-channels wired at 2 ohms. It is equipped with gold-plated RCA level inputs & screw terminals and is powered by a MOSFET power supply. The option of low-level, or high-level inputs will allow the installation of these amplifiers into any system with ease. 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.

Product Features
  • 5-Channel Class AB/D GTA Series Hybrid Amplifier
  • RMS Power Rating:
    • 4 ohm: 70 watts x 4 chan. + 250 watts x 1 chan.
    • 2 ohm: 125 watts x 4 chan. + 400 watts x 1 chan.
    • Bridged, 4 ohm: 250 watts x 2 chan.
  • MOSFET power supply
  • Optional Bass Remote available Boston Acoustics GTA-RSL(remote level control sold separately)
  • LED power and protect indicators
  • SST (Symmetrical Signal Topology) system uses balanced asymmetrical inputs for noise cancellation
  • Fully adjustable Q-Tune circuitry for simple bass output optimization
  • Recessed control panel for clean installation
  • 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
  • 5-Channel operation
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-Way System Protection circuitry (thermal, overload, and speaker short protection)
  • Fully adjustable and selectable lowpass/highpass crossovers
  • Wrap-around heatsink design for extreme heat dissipation
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable High-Pass Filter (50-200 Hz, 12 dB/octave)
  • Variable Low-Pass Filter (50-200 Hz, 12 dB/octave)
  • THD (Total Harmonic Distortion): 1%
  • Signal to Noise Ratio: 90 dB
  • Frequency Response (Front/Rear Channels): 10-50,000 Hz
  • Frequency Response (Subwoofer Channel): 10-50 Hz
  • Input Voltage: 14.4 volts
  • Fuse Rating: 25 amp x 3
  • CEA-2006 compliant amplifier
  • Dimensions: 8-3/8"D x 21-1/4"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

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
70 watts x 4 channel
RMS Power @ 2 ohms
125 watts x 4 channel
Bridged RMS Power
250 watts x 2 channel
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
250 watts x 1 channel
RMS Power @ 2 ohms
400 watts x 1 channel
Amplifier Specifications
Amplifier Class
AB / D
Number of Channels
5-Channel
Total Peak Power Output
Not specified by manufacturer
Total RMS Power Output
900 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
1%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 200 Hz
Low-Pass Crossover Frequency
50 - 200 Hz
Signal-to-Noise Ratio
90 dB
Channel Separation
Not specified by manufacturer
Bass Boost
Q-Tune Circuitry
Remote bass/level controller
Optional (Accessory required and sold separately)
Fuse Rating
25A x 3 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

GTA-1105

Weight:

14.00lbs

Internal SKU:

gta1105

Internal Product ID:

39767

Product and How-to Videos


Customer Ratings & Reviews


Boston Acoustics GTA-1105 thumbnail image

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



Durability
4
Value
4
Features
4
Design
4
Usability
4

Customer Reviews

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Excellent product

Decided to go with this 5 channel amp instead of two. I'm using this amp with a Fahrenheit TI-769NB, two sets of Infinity kappa speakers for the cab and a 12" Boston Acoustics sub. The sound is crisp, clear, and the sub def sounds great. The amp offers excellent controls to help get the clearest sound possible. Would def recommend!!

By Marc on April 16, 2012

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