Name: Boston Acoustics GTA-704
Brand: Boston Acoustics
SKU: gta704
Price: 169.95 USD
Availability: Discontinued
Rating: 5.0000 (1 reviews)

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Product highlights

GTA Series Class AB 4-Channel Amplifier • 70W x 4 Chan. @ 4 Ohm • 125W x 4 Chan. @ 2 Ohm • Symmetrical Signal Topology • Q-Tune Circuitry • Integral Mounting System • Wrap-Around Heatsink Design

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Product Highlights

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-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 ohm: 70 watts x 4 chan.
- 2 ohm: 125 watts x 4 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
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

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

Amplifier Specifications

Amplifier Class

A/B

Number of Channels

4-Channel

Total Peak Power Output

Not specified by manufacturer

Total RMS Power Output

500 watts

Maximum Input Gauge Size

4 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

THD at Rated RMS Power

Speaker Level Inputs

Yes

Preamp Outputs

1 pair

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)

Boston Acoustics GTA-RSL

Fuse Rating

25A x 2

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

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By feature average rating

Durability		5
Value		5
Features		5
Design		5
Usability		5

Customer Reviews

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Great door speaker amp

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.

By Bradley on May 13, 2012

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Add-ons

Belva BAK44

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

(61)

$49.99

List price $79.99

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Boston Acoustics GTA-704

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This item has been discontinued

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