1.888.955.6000
crutchfield.com
Crutchfield

Boston Acoustics GTA-1005

5-channel car amplifier — 50 watts RMS x 4 at 4 ohms + 400 watts RMS x 1 at 2 ohms

Zoom
  • Boston Acoustics GTA-1005

    Front

  • Boston Acoustics GTA-1005

    Back

  • Boston Acoustics GTA-1005

  • Boston Acoustics GTA-1005

Crutchfield OMC logo
We don't check this item for fit or compatibility.
Item #: 065GTA1005
 

Review Summary

DISCONTINUED
 
This item is no longer available to purchase.
 
Contact us for other options
 
Call   Email  
 
Original price $249.99
We recommend this similar item, or shop all All Car Amplifiers
 
 
 
 
 

Our take on the Boston Acoustics GTA-1005

by Buck Pomerantz
Boston Acoustics

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Boston Acoustics GTA amplifiers use some of the same technologies found in their top-of-the-line GT Reference amps to give your music a powerful boost. And these attractive amps deliver the sonic goods at a reasonable price.

The 5-channel GTA-1005 amplifier puts out 50 watts RMS per channel to your front and rear speakers, plus up to 400 watts RMS to a subwoofer system — plenty enough power to get your entire system rockin'. Boston Acoustics' Q-Tune™ technology lets you tune your bass so you get maximum performance from your sub/enclosure combination. The inputs feature special noise-cancellation circuitry that ensures clean reproduction of your music all the way through to your speakers.

You'll find all connections and adjustment controls recessed on one side of the amp, for a neat installation and easy adjustment. Variable high- and low-pass filters let you tune the amplified signal so your system can sound its best. An optional wired remote control gives you the power to tweak the sub level from the front seat.

See more info on this item

Highlights:

  • 5-channel amplifer
  • 50 watts RMS x 4 at 4 ohms + 250 watts RMS x 1 at 4 ohms
  • 80 watts RMS x 4 at 2 ohms + 400 watts RMS x 1 at 2 ohms
  • 160 watts RMS x 2 bridged at 4 ohms + 250 watts RMS x 1 at 4 ohms
  • CEA-2006 compliant
  • variable high- and low-pass filters on front and rear channels (50-200 Hz, 12 dB/octave)
  • variable low-pass filter on subwoofer channel (50-150 Hz, 12 dB/octave)
  • variable subsonic filter on sub channel (10-50 Hz, 12 dB/octave)
  • Q-Tune technology variable bass boost on sub channel
  • optional wired remote subwoofer level control
  • Symmetrical Signal Technology (SST™) uses asymmetrical balanced inputs for noise cancellation
  • preamp and speaker-level inputs
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 21-1/4"W x 2-3/8"H x 8-9/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Performance
RMS Power Output (Watts x Channels)
Loading...
50 x 4
250 x 1
Peak Power Output (Watts x Channels)
Loading...
N/A
Power at 2 Ohms (Watts x Channels)
Loading...
80 x 4
Bridged Power (Watts x Channels)
Loading...
160 x 2
Minimum Impedance Bridged
Loading...
4
Minimum Impedance Unbridged
Loading...
2
Best Frequency Response
Loading...
10-50k Hz
THD at Rated RMS Power
Loading...
1%
Signal to Noise Ratio
Loading...
90 dB
Input Voltage
Loading...
14.4v
Features
Amplifier Class
Loading...
AB/D
Low-Pass Crossover Frequency
Loading...
50-150 Hz
Low-Pass Slope (dB/octave)
Loading...
12 dB/oct
High-Pass Crossover Frequency
Loading...
50-200 Hz
High-Pass Slope (dB/octave)
Loading...
12 dB/oct
Bass Boost
Loading...
No
Bass Boost Frequency
Loading...
N/A
Fan Cooled
Loading...
No
Fuse Rating
Loading...
25 x 3
Speaker Level Inputs
Loading...
Harness
Preamp Outputs
Loading...
No
Width (inches)
Loading...
21-1/4
Height (inches)
Loading...
2-3/8
Depth (inches)
Loading...
8-9/16
Parts Warranty
Loading...
2 Years
Labor Warranty
Loading...
2 Years
Product Research
What's in the box?

Download owner's manual

  • 5-Channel amplifier
  • Six 25-amp ATO fuses (3 installed/3 extra)
  • Three 12" Speaker-level input harnesses
  • Four 3/4" Self-tapping screws
  • 2mm Alen wrench
  • 3mm Alen wrench
  • 4mm Alen wrench
  • Owner's Manual
  • Warranty information

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Controls
Connections

Features

GTA-series Amplifiers: The Boston Acoustics GTA-1005 amplifier is part of the GTA-series; this 5-channel amp uses a standard AB design for the front and rear channels, and an efficient Class-D design for the subwoofer channel to deliver increased power into lower impedances. The low profile design makes installation in tight locations easier.

2-Ohm Stable: The GTA-1005 can be connected to loads with impedances as low as 2 Ohms; the lower the impedance, the higher the output power:

  • Front and Rear Channels:
    • 50 watts x 4 @ 4 ohms
    • 80 watts x 4 @ 2 ohms
    • 160 watts x 2 @ 4 ohms (bridged)
  • Subwoofer Channel:
    • 250 watts x 1 @ 4 ohms
    • 400 watts x 1 @ 2 ohms

Controls and Terminals: All the controls and terminals are conveniently mounted on one side of the amp.

Controls

Gain: Each of the three inputs has its own rotary gain control knob to adjust the input sensitivity; the range is 0.2 Volts to 5.0 Volts (line-level) or 0.4 Volts to 10.0 Volts (speaker-level).

Crossover Switch: Choose from high-pass, low-pass, and off (full range) for the crossover on the front and rear channels.

Crossover Frequency: The front and rear channel crossover (low-pass or high-pass) points are continuously variable from 50 Hz to 200 Hz; the slope is 12 dB/octave.

Subwoofer Low-pass Filter: The low-pass filter on the subwoofer channel is always on and controlled using a rotary knob; it is continuously variable from 50 Hz to 150 Hz; the slope is 12 dB/octave.

Subsonic Filter: The subsonic (high-pass) filter on the subwoofer channel is always on and controlled using a rotary knob; it is continuously variable from 10 Hz to 50 Hz; the slope is 12 dB/octave.

Q-Tune: Once the subsonic crossover point has been determined, use the rotary Q-Tune control to increase the bass information centered around the crossover point.

Connections

Speaker-level Input: Each of the three inputs (front channel, rear channel, and subwoofer) has an independent Molex plug for use with the included harnesses when the receiver has no RCA outputs.

Line-level Input: Each of the three inputs has left and right RCA jacks for the input signal from the head unit.

GTA-RSL: RJ-14 port; connect an optional GTA-RSL remote subwoofer level control (item number 065GTARSL, sold separately).

Speaker Output: Four pair of set-screw terminals provided for connecting the front and rear channel speakers; the terminals can accept up to 10-gauge wire; the set screws are tightened/loosened with the supplied 2mm Alen wrench.

Subwoofer Output: One pair of set-screw terminals provided for connecting a subwoofer; the terminals can accept up to 8-gauge wire; the set screws are tightened/loosened with the supplied 3mm Alen wrench.

ATO Fuses: Three 25-amp ATO-type fuses are located between the speaker and power terminals.

Power/Ground: Two set-screw terminals for connecting power and ground wires; each terminal accepts up to 4-gauge wire; the set screws are tightened/loosened with the supplied 4mm Alen wrench.

Remote: Set-screw terminal for connecting the remote wire; terminal accepts up to 8-gauge wire; the set screws are tightened/loosened with the supplied 3mm Alen wrench

 
Review this product
Great Gear Giveaway rewards card

Submit a review and then enter to win a $500 rewards card

Boston Acoustics GTA-1005 Reviews

Average Customer Review:

2 people say:

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left
Filter by rating:
5 out of 5

Great Amp

Written By Josh R, Austin, TX on Thursday, February 10, 2011
Crutchfield Customer Review (What's this?)
 
This thing sounds fantastic!

I am driving of course my front and rear channel speakers but also A Kicker dual 12" DVC
sub system. This amp drives them perfectly well and has never cut out.

The sound quality at high volume is so much better than my stock HU.

For $250 this really is a steal. I highly recommend it.
Was this review helpful?    Yes | No
 
5 out of 5

Great Amp!

Written By cdubbs, Brooklyn NY on Wednesday, February 09, 2011
Crutchfield Customer Review (What's this?)
 
This is a great amp that will power your entire system. Highly recommended and Crutchfield
has the lowest price.
Was this review helpful?    Yes | No
 

Add accessories for the Boston Acoustics GTA-1005

You'll need an amp wiring kit to install your new amplifier, as wiring is not included. See all categories & accessories

T-Spec 4PK Installation Kit 4-gauge amplifier wiring kit — includes speaker wire
3 people say
Your Price: $89.99
Add to Cart
EFX PA4BX Wiring Kit 4-gauge amplifier wiring kit — includes 2-channel patch cable
1 person says
Your Price: $79.99
Add to Cart
Rockford Fosgate RFK4X Complete 4-gauge amplifier wiring kit
Includes patch cable and speaker wire
12 people say
Your Price: $159.99
Add to Cart
Rockford Fosgate RFK4 4-gauge amplifier power wiring kit
10 people say
Your Price: $114.99
Add to Cart
T-Spec 12-gauge Speaker Wire Black/white jacket — priced per foot
27 people say
Your Price: $1.99
Add to Cart
T-Spec 16-gauge Speaker Wire Black/white jacket — priced per foot
12 people say
Your Price: $0.69
Add to Cart
Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
46 people say
Your Price: $0.39
Add to Cart
T-Spec 2-Channel RCA Patch Cables Available in 7 different lengths (20-foot)
23 people say
Your Price: $20.99
Add to Cart
Pro.Fit Wire Worm Installation tool helps route wiring through tight spaces
28 people say
Your Price: $12.99
Add to Cart

Why choose SquareTrade?

The #1-Rated Protection Plan

Thousands of people have reviewed SquareTrade Protection Plans — and made us #1.

5-Day Service Guarantee & Free Shipping

We'll repair or replace your item in five business days or less after we've received it, or your plan is free. And, as always, we pay for all shipping.

Protection from Normal, Everyday Use

Repairing your average mechanical or electrical failure can cost as much as buying a new device. With SquareTrade, you're covered — including parts and labor.

3 Year Protection Plan
3 Year Protection Plan
Your Price: $34.99
Add to Cart

For a more in-depth review and enhanced detailed information on the Boston Acoustics GTA-1005, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_065GTA1005/Boston-Acoustics-GTA-1005.html ).