SKU: 28299520347

Goodwood Audio The TX Underfacer

Sale price$121.05 Regular price$134.50
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Description

Goodwood Audio The TX UnderfacerMaker: Goodwood Audio Model: The TX Underfacer Condition: New Description: The TX Underfacer is like The TX Interfacer but designed to go under an angled pedal board. Use it to take care of all your input, muting, tuning, summing, isolating and phase correcting needs without using any pedal board real estate. Master Mute Hit the mute pushbutton on The TX Underfacer to mute your signal before it reaches your amps. No matter what craziness is happening

Maker: Goodwood Audio

Model: The TX Underfacer

Condition: New

 

Description:

The TX Underfacer is like The TX Interfacer but designed to go under an angled pedal board.  Use it to take care of all your input, muting, tuning, summing, isolating and phase correcting needs without using any pedal board real-estate. 

Master Mute
Hit the mute pushbutton on The TX Underfacer to mute your signal before it reaches your amps. No matter what craziness is happening on your board, the master mute has the final say on what does or doesn’t get sent to your amp. 

You can also control the master mute with RMT remotely on top of your pedal board. 

Summing
The TX Underfacer has two types of summing: Stereo Sum and Split Sum. To access these two modes, use the internal DIP switch to select which mode is best for you.

  1. Stereo Sum – This is the default mode The TX Underfacer ships with.  In this mode use stereo effects as normal. When summed, the left and right inputs are merged and the exact same signal is sent to the left and right outputs.
  2. Split sum – Still use stereo effects as normal. When summed, the right input is ignored and the left input is split to both left and right outputs.

Ground Lift & Phase Correction

The TX Underfacer comes with ground lift and phase correction for players that want to run more than one amp.

  1. Ground Lift – There are times when two amps are being used that an audible hum/buzz can be heard coming out of your amps. When plugged into one amp only, the hum/buzz is not present.  This is commonly referred to as a ground loop.  This happens when there is more than one path to earth.  To safely fix this common problem, a transformer is needed to isolate your second amp and create one path to ground.  Push the red ground lift button to isolate your right amp from your left. 
  2. Phase Correction – Another common issue when running two amps is phase cancellation. Some amps are in phase in relation to each other and other amps are not.  When amps are out of phase with each other they are cancelling each other out.  This is most noticeable in the lower frequencies.  Normally this would mean you can’t use those amps together.  With the black phase correction button you can now put two amps that were out of phase, back in phase and working together.  To access this, turn on the transformer (red button) and flip the phase (black button).

Input
The TX Underfacer comes with a buffered input. This means before your guitar sees the first pedal on your board you are sending a high impedance signal to your pedals, preserving your tone. It also comes with an always-on tuner out.

 

IMPORTANT – Use only 9vDC centre negative plug to power! Current draw – 100mA
Dimensions including all jacks and push buttons are: 100mm long x 118mm wide x 34mm high.

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 28299520347

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    M. Graham
    Port Orchard, US
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    Quick and easy process
    Assurian protection plans are worth it. Simplified process to get it handled. When my portable blender broke, I followed the process and they sent me an electronic gift card and that was very easy to redeem good customer service. I’ve also taken it on other items, but I haven’t had to use those yet.
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    Reviewed in the United States on January 13, 2026
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    Carol PA
    Draper, US
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    protection plan is easy.
    The protection plan worked on my coffee pot. It was just over 14 months and started to leak. I first called amazon and they sent me a link to the protection plan. It was very easy to use. I received a Amazon gift card instead of a replacement. The price of the coffee pot had increased so you will receive the lower option. I did receive the total cost of the pot at the time I purchased it.
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    San Leandro, US
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    Great customer service.
    I’m really happy with the appliance protection plan I got for my toaster. It was easy to set up, affordable, and gives me peace of mind. The customer service was also friendly and helpful. Definitely worth it!
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    Johs
    Grantham, US
    ★★★★★ 5
    Asurion complied immediately
    I am satisfied because Asurion's response was quick, and they immediately refunded my money, so I can make the purchase again and protect it with Asurion again.
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    Reviewed in the United States on February 21, 2026
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    No puedo abril el parcel lacked can you please check in my package and change the lacked please
    Waukegan, US
    ★★★★★ 5
    Rowenta steam iron
    Ya mi planca me esta dondo problem enpeso a liquiar agua desde ayer. Pork este productos no tienes una duracion mas larga?. Nesecito canvio por fabol gracias
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    Reviewed in the United States on April 30, 2026

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