HMDX Audio Go XL HX-GO4 (Black)

Portable Smartphone MP3 Player Speaker Case


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This item has been discontinued

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General Features:

  • Battery operated portable speaker case
    • Requires 3 AAA batteries (Not Included)
  • External clip easily attaches to backpacks
  • Compatible with all smartphones and MP3 players
  • Built-in 3.5mm cord connects to smartphone or MP3 player
  • Padded case keeps your device and headphones protected
  • External volume controls simplifies your music control
  • Manufacturer Part Number: HX-GO4BK
  • Primary Color Tone: Black
  • HMDX GO XL HX-GO4 Portable Speaker Case Are Available In:
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Product History:

HMDX Go XL (Black) HX-GO4BK thumbnail
(newest, current model)
HMDX HX-GO3BK thumbnail
(previous model, replaced by HMDX Audio Go XL HX-GO4 (Black))


Primary Color
This is the main color of the item.
Secondary Color
A color that compliments the main color of the product.
Does not allow water to pass through the device keeping it dry.

Wireless Specifications

Bluetooth Connectivity
Bluetooth® technology allows two or more electronic devices to communicate with each other wirelessly, such as using your cell phones "hands-free" or transmitting music to Bluetooth enabled receiver. If a unit is Bluetooth capable, it typically can allow you to connect to your Bluetooth cell phone to make and receive calls. Others can access your phone and address book too via Bluetooth. Other Bluetooth capable units offer even more services, such as live traffic information and map upgrades.

More uses of Bluetooth technology include transmitting music to a compatible receiver, printing wirelessly from a computer, and many other wireless uses. Please see the item description for more specific information regarding what features the unit includes.

Built-In Microphone
This will designate if thedevice has a built-in microphone for the recording or transmitting of audio.

Speaker Specifications

Speaker Configuration
This is the configuration of the speakers in the home theater system. The more speakers, the more realistic the surround sound is.
Stereo (2.0)
Includes Subwoofer
This means that the speaker system includes a subwoofer.


USB Input
This feature refers to whether or not the receiver features an input to connect a USB device via standard USB or mini-USB. The USB input may be a connection on the front or rear of the unit with an extension cable for connecting devices to the receiver. Some units have an optional input that allows for a USB adapter to be purchased separately and used with the unit.
3.5mm Stereo Jack
Uses a 3.5mm stereo jack to connect to an audio source. This is the common size found on most CD and Mp3 players, as well as most home computers.
Composite (RCA) Stereo Inputs
This is the number of composite (RCA) outputs on the unit.

Docking Options

Compatible Devices
This feature tells you if this dock will be compatible with iPhone, Android or other operating systems.
Charges the iPod
This means that the device provides a charge to the iPod or iPhone.
iPod Dockable
This designates if an iPod can be docked the particular device. This feature applies it to home DVD/Blu-ay players, iPod accessories, alarm clocks, and more. When an iPod is docked, it will charge the iPod. Some devices will support the playback of video off of a docked compatible iPod. Some players include a dock or have one built-in, while others require you to purchase it separately.


Power Source
The power source is the method in which the unit receives power. Some units will be powered by batteries, while others will need to be plugged in to an AC or DC power source.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Madera, CA

Good product for the price

June 1, 2014

I use the speaker system with my apple iPod but the music tends to fade in and out. The product may not be apple approved or the wire that connects to the iPod is not thick or wide enough. Apple products are exclusive to apple products and not inclusive.

37 of 44 found this helpful

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Why did you choose this?
Sonic Electronix Store
I have the 3 and it has worked flawlessly for the past 3 years. I attach this portable Ipod speaker to the stem of my bicycle so that when I ride I am able to jam out. Sound is good and the volume gets pretty loud. We were caught in the rain with our 3 and like it states it isn't H2O proof. It dried out and still works but I decided to get me some back ups, & new ones for our new colored bikes. Price is too good to pass up.
Daniel K on May 28, 2015

Product Summary


Model Number

Go XL (Black) HX-GO4BK





Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: HMDX Audio Go XL HX-GO4 (Black)