Garage
Shop

See all parts that fit your 2023 4Runner

Boston Acoustics GTA-1105

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

Product videos
highlight-star-icon

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

Learn more about the gta1105

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
82-8148 main

Metra 82-8148

6" to 6.75" Speaker Bracket for select 1998-2024 vehicles from Toyota, Subaru, Scion

35
-50.01%

$18.99

List price $37.99

72-8104 main

Metra 72-8104

Install New Speakers in select 1990-2024 vehicles from Toyota, Subaru, Mitsubishi

87
-20.01%

$11.99

List price $14.99

82-8146 main

Metra 82-8146

6x9" Speaker Bracket for select 2002-2024 vehicles from Toyota, Subaru, Lexus

31
-46.07%

$19.95

List price $36.99

72-8110 main

Metra 72-8110

Install New Speakers and Tweeters in select 2003-2025 vehicles from Subaru, Toyota, Scion

8
82-4201 main

Metra 82-4201

2.5" Tweeter Mounting Adapters for select 1999-2024 vehicles from Toyota, Subaru, Ram

1
-54.57%

$9.99

List price $21.99

XBAF65 main

NVX XBAF65

Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

117
-37.15%

$21.99

List price $34.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

FRING65 main

NVX FRING65

Universal 6.5" or 6.75" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

44
-10.01%

$17.99

List price $19.99

T2652-S main

Rockford Fosgate Power T2 T2652-S

400W Peak (200W RMS) 6.5" Power Series 2 Way Component 4-ohm Speaker System

42
R165X3 main

Rockford Fosgate Prime R165X3

180W Peak (90W RMS) 6.5" Prime Series 3 Way Coaxial 4-ohm Speakers

206

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

Loading...
SB-T-4RNRG5/10TW3 main

JL Audio Stealthbox® SB-T-4RNRG5/10TW3

Custom-Fit Loaded 10" Subwoofer Enclosure for select 2010-2024 4Runner

$1,799.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

59
-19.05%

$339.99

List price $420.00

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

254
-33.36%

$79.96

List price $119.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

214
-9.16%

$109.00

List price $119.99

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

72
-10.53%

$84.99

List price $94.99

Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00


Best selling similar products

VAD11005v2 small

NVX VAD11005 v2 (VAD11005v2)

• 80 watts x 4 channel + 350 watts x 1 channel @ 4 ohm
• 125 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(137)

$349.99

List price $419.99

NDA11005 small

NVX NDA11005

• 100 watts x 4 channel + 315 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(17)

$259.99

List price $323.99

VAD22008v2 small

NVX VAD22008 v2 (VAD22008v2)

• 150 watts x 6 channel + 250 watts x 2 channels @ 4 ohm
• 225 watts x 6 channel + 400 watts x 2 channels @ 2 ohm
• Bridged: 450 watts x 3 channel + 850 watts x 1 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 8-Channel Amplifier

(2)

$399.99

List price $539.99

HDP-D90 small

Alpine Status HDP-D90

• 50 watts x 8 channel + 80 watts x 4 channel @ 4 ohm
• Total RMS Power: 720 watts
• Class D 4 ohm Stable 12-Channel Digital Sound Processor Amplifier
• High-resolution (Hi-Res) audio playback
• Selectable pre-configured sound system configurations
• Embedded RTA signals for customized sound tuning
• Bluetooth audio streaming with included external module

(1)

$1999.95

List price $3480.00

LC-5.1300 small

AudioControl LC-5.1300

• 100 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 200 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1300 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(2)

$660.00

List price $1369.00

EPICFIVE small

AudioControl EPICFIVE

• 75 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• 700 watts x 1 channel @ 1 ohm (subwoofer output)
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1100 watts
• Class D 1 ohm Stable 5-Channel Amplifier

(2)

$259.00

List price $259.00

RD800/6 small

JL Audio RD800/6

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 6-Channel Amplifier

(1)

$549.99

List price $779.98

X803-5 small

Kenwood eXcelon X803-5

• 50 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(5)

$499.99

List price $600.00

MICRO85U small

Diamond Audio MICRO85U

• + @ 4 ohm
• 85 watts x 1 channel + 375 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm + 375 watts x 1 channel @ 2 ohm
• Total RMS Power: 1035 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

$659.99

List price $719.99

XQA16005 small

NVX XQA16005

• 125 watts x 4 channel + 300W x1 @ 4 ohm
• 200 watts x 4 channel + 500W x 1 @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm + 800W @ 1 ohm
• Total RMS Power: 1600 watts
• Class D 1 ohm Stable 5-Channel Amplifier

(2)

$449.99

List price $719.99

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

Sort by:

Loading...

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

5 found this helpful



Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2023 Toyota 4Runner

2023 Jeep Wagoneer

2015 Mazda 6

2012 Ford Fiesta

2004 Toyota Corolla

1999 Dodge Intrepid

2010 Audi A4 Quattro

2019 Chevrolet Spark

2007 Mazda 3

2001 Ford Explorer

Vehicle
Store
Delete

2007 Harley Davidson FLHTCSE Screamin Eagle Electra Glide

2000 Harley Davidson FLSTC Heritage Softail Classic

2016 Harley Davidson FLS Softail Slim

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.