JBL

GTR-104

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High-performance Clari-Fi™ Enhanced 4-channel full-range car audio power amplifier

$499.95499.95 each
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Item# GTR-104

General Specifications

Peak Power 1500W

Audio Specifications

2-Ohm Power Output 120Wrms x 4, <0.1% THD+N
Signal-to-Noise Ratio >75dB (ref 1 W output @ 4 )
4-Ohm Power Output 100Wrms x 4, <0.1% THD+N
Click here for a complete list of all specs for this product

Spec Sheet (EN)

English 997 KB
  • 1 amplifier
  • 1 cabin-mounted control panel
  • 2 spare fuses
  • Owner’s manual

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1 Year

Note: the Warranty Card provided with your JBL product contains the full terms and conditions of your warranty.

Unless a different warranty period is stated in the Warranty Card provided with your JBL product, JBL warrants for a period of 1 year (5 years for any non-powered speakers) from the date of retail purchase by the original end-use purchaser, that this product, when delivered to you in new condition, in original packaging, from a JBL authorized reseller and used in normal conditions, is free from any defects in manufacturing, materials and workmanship. Refer to the Warranty Card provided with your JBL product for specific details including what is not covered along with other terms and conditions.

Call us: 1.800.336.4525

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is there no gain control when operating on bluetooth input only? My gain controls seem to do nothing when streaming from my phone.

Asked by: BOON250
The gain button is not function while using the Bluetooth option. This is wrong configuration due to that the balance with front and rear speakers is lost, or even worst if you you use the rear output top for sub-woofer.
Answered by: Ron105
Date published: 2018-04-11

What speakers (two 6x9 and two 6.5in) would you recommend to be used with this amp?

Asked by: rando1
I highly recommend the GTO series speakers. I have them installed in my car and they sound way above their output grade compared to other speakers I have installed in the past. My speakers are the same size as yours.
Answered by: ShatteredMJ
Date published: 2018-04-05

I currently have a Club 704 and it can be bridged into 2 channels. I do NOT see that as an option with the GTR 104. Is that just possibly an omission on this website?

Asked by: FiveHundred
The JBL GTR 104 is a 4 channel amplifier and it is possible to do a 2-channel bridged operation. You may connect one speaker&rsquo;s (+) lead to the Front L+ terminal, and the (-) lead to the Front R- terminal. Connect the other speaker&rsquo;s + lead to the Rear L+ terminal, and the - lead to the Rear R- terminal. While for Mono bridge, you have to connect the speaker&rsquo;s positive (+) lead to the L+ terminal, and the negative (-) lead to the R- terminal.
Answered by: Nick F
Date published: 2018-02-12

I'm looking to pair my GX602 and GX963 speakers with an amp and I would like some advice as to which JBL would work best so I only have to buy 1 amp to run both sets of speakers. I was looking at your GTR-104 but my mind isn't made up yet.

Asked by: obviouslyalan
We would like to work with you directly to help with your inquiry. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Gian at Customer Service
Date published: 2018-03-10

is the GTR-104 CEA2006 complient?

Asked by: frankdanger
Yes, all of our car audio amplifiers are CEA 2006 rated.
Answered by: Steven M
Date published: 2018-01-26

Hi Is it possible to use bluetooth alone to play music out to the speakers, without connecting to the car main unit ? Can a SUB amplifier be connected directly from this if you only play music via bluetooth?

Asked by: Ricardo26
Yes, you can work with this amplifier thru BT even without a direct connection to the car main unit. The amplifier is also has a PRE OUT connection for a secondary amplifier.
Answered by: Mel at Customer Service
Date published: 2017-12-02

Hi. Recently got GTR104 and connected a JBL 3 way power series speakers with a gauge 8 power cable. The HU is a Sony 712BT. Question is Why is the amp auto shutting off when HU is in low volume like 12 below? Need to power it on on the remote again.

Asked by: Poringdrops
Turn the input on the amp down, considerably, and turn up the volume of the head unit, to compensate, and the unit will stay on, and sound better as the signal to noise ratio will be much better.
Answered by: Mark at Customer Service
Date published: 2017-12-02

What Bluetooth codecs does this amp support? &nbsp;Specifically, does it support AAC? &nbsp;AptX?

Asked by: Stuartb
The JBL GTR-104 is a standard SBC A2DP Bluetooth device. It does not support APTX nor AAC.
Answered by: Steven M
Date published: 2018-03-14
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