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Boston Acoustics GTA-500m

500W Monoblock Class D GTA Series Amplifier

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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-500m is a Monoblock version of this series and has an RMS power rating of 300 watts x 1-channel wired at 4 ohms and 500 watts x 1-channel 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
  • Monoblock Class D GTA Series Amplifier
  • RMS Power Rating:
    • 4 ohms: 300 watts x 1 chan.
    • 2 ohms: 500 watts x 1 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
  • Mono 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 (50-150 Hz, 12 dB/octave)
  • Variable Low-Pass Filter (10-50 Hz, 12 dB/octave)
  • Subsonic Filter (10-50 Hz)
  • THD (Total Harmonic Distortion): 1%
  • Signal to Noise Ratio: 90 dB
  • Frequency Response: 10-150 Hz
  • Input Voltage: 14.4 volts
  • Fuse Rating: 25 amp x 2
  • CEA-2006 compliant amplifier
  • Dimensions: 8-5/16"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 Manufacturer's warranty
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms300 watts x 1 channel
RMS Power @ 2 ohms500 watts x 1 channel
RMS Power @ 1 ohmN/A
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassD
Number of Channels1 - Mono
Total Peak Power OutputNot specified by manufacturer
Total RMS Power Output500 watts
Maximum Input Gauge Size4 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance BridgedNot Bridgeable
THD at Rated RMS Power1%
Speaker Level InputsYes
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency50 - 150 Hz
Low-Pass Crossover Frequency10 - 50 Hz
Subsonic Filter10 - 50 Hz
Signal-to-Noise Ratio90 dB
Channel SeparationNot specified by manufacturer
Bass BoostQ-Tune Circuitry
Bass/Gain RemoteOptional (Accessory required and sold separately)
Fan CooledNo
Fuse Rating25A x 2 
CEA-2006 CompliantYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
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Product Summary

Manufacturer: Boston Acoustics
Model number: GTA-500m
UPC: 0690283478803
Weight: 7.00 lbs
Internal SKU: gta500m
Internal product ID: 39776
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