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SoundGate XR4PRO

4-Channel Budget Line Output Converter/Head Unit Replacement


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This item has been discontinued

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  • 4-Channel line output converter/head unit replacement
  • Features complete isolation, low source impedance, high signal levels, flat and extended frequency response
  • Independent gain adjustments for all four channels at 55 watts per channel
  • 20-20000 Hz output
  • Full DC isolation, proprietary transformers, and elimination of power resistors
  • 1-year Manufacturer's warranty

Line-Out Converter Specifications

Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Maximum Power Input
This is the maximum amount of power (measured in watts) that the unit is designed to handle. Exceeding this amount can void warranties and damage the unit.
55 watts

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Average Attribution Rating


Charlotte, NC

What country is this thing made - mars!

May 6, 2010

OK, opened up the package and the instructions tell you to look at the back of the sheet for wiring colors. Guess what none there. Onto the next. In order to adjust the 4 gain pots you have to remove the top cover, when you do the circuit board falls out. I mean no 4 holes in the top cover - guess no drill bits at the factory. So yes I drilled 4 holes myself. Now on the PCBA board one of the pots is labeled "L Froct", what the HE##! And there are two pots labeled "L Rear" what no right rear? And no documentation on the pots as far as what is what. No I am not making this up - quite serious. I will say the quality of the wires and case is quite good so if it all works in the long run so be it. So will be calling the MFG to get proper information. So this is why I say it must have been made on mars - or maybe on a Monday morning.

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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: SoundGate XR4PRO

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SoundGate XR4PRO

4-Channel Budget Line Output Converter/Head Unit Replacement


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