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  • JBL GTO 504 50-Watt X4 High-Performance 4-Channel Amplifier
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JBL GTO 504 50-Watt X4 High-Performance 4-Channel Amplifier

by JBL

List Price: $239.95
Price: $219.99 & FREE Shipping. Details
You Save: $19.96 (8%)
Only 3 left in stock.
Sold by E&B Electronics and Fulfilled by Amazon. Gift-wrap available.
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  • Powerful 50W RMS x 4 channel at 4 ohms
  • Built-in variable electronic crossovers for fine tuning sound
  • Easy connection and simple setup
  • Bridgeable output for increased power into 2 channels unmatched system design flexibility
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1 refurbished from $139.99

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$219.99 & FREE Shipping. Details Only 3 left in stock. Sold by E&B Electronics and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

JBL GTO 504 50-Watt X4 High-Performance 4-Channel Amplifier + JBL GTO638 6.5-Inch 3-Way Speakers (Pair) + JBL GTO938 6 x 9-Inch 3-Way Loudspeaker
Price for all three: $352.08

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Technical Details

Product Packaging: Standard Packaging
  • Brand Name: JBL
  • Model Number: GTO 504

Product Description

Product Packaging: Standard Packaging

The JBL GTO high-performance amplifier series includes multi-channel and system amps as well as mono subwoofer amplifiers, and each model has built-in test equipment for perfect setup. What's more, variable crossover and bass boost with precise and clearly marked frequency dials provide easy customization. So whether you're upgrading a factory system or assembling a custom one, GTO amps provide top performance backed by the JBL brand's reputation for top quality.

Product Information

Product Packaging: Standard Packaging
Technical Details
Item Weight6.4 pounds
Product Dimensions8.3 x 9.8 x 2.6 inches
Item model numberGTO 504
  
Additional Information
ASINB007GYU2P6
Best Sellers Rank #51,451 in Electronics (See top 100)
Shipping Weight8.2 pounds (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableMarch 4, 2012
  
Warranty & Support

Product Warranty: For warranty information about this product, please click here
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Customer Reviews

4.4 out of 5 stars
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Most Helpful Customer Reviews

2 of 2 people found the following review helpful By William Tan on April 30, 2013
Package Type: Standard Packaging Verified Purchase
Wonderful amp. Easy to set up and give clean power without over powering as I am going for family usage and couple with JBL MS-62C it give me what I wanted. Fully satisfied. The dealer I bought from deliver quick and good products. Highly recommended.
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1 of 1 people found the following review helpful By Stubb on January 9, 2014
Package Type: Standard Packaging
I'm giving it a 4 STAR because the delay is a little bit long, but it does change based on the sensitivity setting (Low, H1, H2). I am currently using on speaker-level input with the autosense and have it in combination with a GTO-3EZ 2.1 amp driving rear speakers and a sub. The sub amp has a delay, but this gets going right away. The setup really was very simple. I have it mounted in the trunk and I spliced my factory wires at the amp in the driver kick panel into RCA leads running to the trunk so I did not use the included adapters. My setup works fine. The gain adjustment was simple with the included CD, which has one long track with a combined tone. After setting the gains, I did fool with them a bit to get balance and overall sound right. Between the gains and flexible crossover settings, this has all that you need unless you really want to get technical, and the flexibility of the speaker and low-level input options makes it all possible.This has plenty of power and really boosted the overall clarity and volume versus the stock system, even with the factory amp in line. I don't know if other amps are better but it sure improved the factory sound. The compact size allowed mounting on the back of my 60-40 fold down rear seats in my 2012 Charger for easy access and I still have room for any future EQ or processors I might add. I also like the overall design and layout. Kudos to the designer that put this together.
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1 of 1 people found the following review helpful By Tracy L Tate on December 23, 2014
Package Type: Standard Packaging Verified Purchase
Nice amp. Very easy to install. It just doesn't deliver as much power as I anticipated.
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By Charles Jost on July 7, 2014
Package Type: Standard Packaging Verified Purchase
This works flawless for me! I love it. The auto setup worked perfect for me. (Jeep Wrangler 5.25 JBL front 6.5 JBL rear) I also hooked up the blue wire instead of using the auto detect. (Not hard to hook up 1 wire) I have 0 delay. I turn my stereo on and the amp is on and rocking. My install was also all RCA as my HU had them. It sounds amazing very crisp and clean. Plus it is stable with 2 ohm speakers. The little Rockford is not. I would recommend to anyone.
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By Blake on March 16, 2014
Package Type: Standard Packaging Verified Purchase
This amp is excellent. The size is perfect and the dials being placed on top are great for quick setup.

One thing that i have to mention is that the included cd for tuning the amps gain is probably the most idiotic thing jbl could have done. The tone on that cd is like -12db. If anyone tuned their gain with that cd, they would surely blow any speakers when playing them at the level where the amp says safe before clipping.

Be smart and get your self a 0db test tone at 1khz and tune the gain that way.
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By Sarge on September 3, 2014
Package Type: Standard Packaging
Excellent product. I would recommend this Amp to anyone. Very clear and without any buzz or noise. Simple use of CD to tune the gain to perfection.
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