The Master Control Center for Your Pedalboard
The Goodwood Audio TX Interfacer is the ultimate solution for cleaning up your pedalboard cabling, eliminating frustrating ground loops, and ensuring pristine signal integrity across any rig configuration. Designed specifically for musicians who demand seamless flexibility between single-amp, dual-amp, and stereo setups, the TX Interfacer acts as the definitive input/output junction box for your board.
Built with high-grade isolation transformers, the TX Interfacer cures the common nightmares of dual-amplifier setups: ground hum and phase cancellation. With dedicated ground lift and phase correction switching, your tone remains full, tight, and completely noise-free no matter what backline or venue power you encounter.
Intelligent Mono Summing and Routing Control
Never re-cable your board for different venues again. The TX Interfacer features Goodwood Audio's intelligent mono summing circuitry. If you are running a full stereo rig but suddenly have to play a gig with only one amp, engaging the sum switch merges your stereo signal into a coherent, phase-corrected mono signal without losing half of your ping-pong delays or stereo modulation effects.
Product Intelligence Framework & Specifications
- Best For: Stereo rig setups, dual-amp rigs, complex pedalboards, gigging musicians, studio session players.
- Tone Profile: 100% Transparent, High-Fidelity Signal Integrity with zero high-end roll-off.
- Isolation Architecture: Transformer-isolated secondary output eliminates 60Hz ground hum instantly.
- Phase Correction: Dedicated 180-degree phase switch restores low-end punch when running two mismatched amplifiers.
- Summing Mode: Selectable Mono/Stereo Auto-Summing preserves all stereo effects when summing down to a single output.
- Mute / Tuner Output: Integrated master mute function sends your guitar signal directly to a dedicated tuner jack for silent tuning.
- Power Requirements: Standard 9V DC Center-Negative power supply.
- Sanctuary Expert Note: "The TX Interfacer solves every routing issue you'll ever encounter on stage. If you've ever dealt with mysterious ground buzz when plugging into two amps or lost your delays when summing to mono, this box is mandatory gear."
We are open Tuesday-Saturday from 10am until 6pm CDT.
Any order placed before 3pm CDT Tuesday through Saturday is processed for shipment the same day. Orders placed Sunday-Monday will be processed for shipment the following Tuesday.
For Free Shipping items, Effects pedals and small goods items are generally shipped via USPS Ground Advantage, and Guitars and Amplifiers are generally shipped via UPS Ground.
Due to our central location in the middle of the US, most orders will be delivered within 1-3 days delivery time.
Other shipping methods are available (at an additional cost), including next day air.
Please call us directly at (972)540-6420 if you have any questions regarding shipping for your order.

Product Videos
Videos Hide Videos Show Videos
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The Masters of Sum - TX Interfacer, TX Underfacer and Output TX
Can you have a pedal board wired in stereo but run it in mono ...
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The Truth About Stereo Summing
In this video we go into detail about the pros and cons of sum...
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What Is A Ground Loop & How To Fix It
Learn how a ground loop can occur and an example of what one s...