GTA Series High Performance AmplifierSonic 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-704 is a 4-channel version of this series and has an RMS power rating of 70 watts x 4-channels wired at 4 ohms and 125 watts x 4-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
- 4-Channel Class AB GTA Series Amplifier
- RMS Power Rating:
- 4 ohms: 70 watts x 4 chan.
- 2 ohms: 125 watts x 4 chan.
- Bridged, 4 ohms: 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
- 4-Channel/2-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: 10-50,000 Hz
- Input Voltage: 14.4 volts
- Fuse Rating: 25 amp x 2
- CEA-2006 compliant amplifier
- Dimensions: 8-3/8"D x 14-3/4"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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Average Customer Rating is 5.0 out of 5 stars:
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Average Attributes Rating:
| Durability | | 5.0 |
| Value | | 5.0 |
| Features | | 5.0 |
| Design | | 5.0 |
| Usability | | 5.0 |
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Most Helpful Customer Reviews:
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Review by
Bradley from Hopkinsville, KY
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I have a pair of Boston SC65s, a pair of Boston SE75s (4x6s), and 4 pairs of aftermarket tweeters and this amp keeps all of them properly powered. The amp puts out very clean power even at high volume and it doesn't take all that much power off the vehicles electrical system. This amp has many great features like both RCA inputs and speaker level inputs, I would use the RCA inputs because it's easier and the sound quality could be better with RCAs. I would recommend this amp to anyone that is looking for a good 4 channel amp for door speakers.
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