1. Introdución
Thank you for choosing the Gator Cases GTR-PWR-12 Guitar Effects Pedal Power Supply. This unit is designed to provide clean, isolated power to your entire pedalboard, ensuring optimal performance and minimizing unwanted noise. With multiple isolated outputs and versatile voltage options, the GTR-PWR-12 is a reliable solution for musicians on stage, in the studio, or at home.
2. Información de seguridade
- Lea atentamente todas as instrucións antes de utilizar o dispositivo.
- Non expoña a unidade á choiva, á humidade ou a temperaturas extremas.
- Garantir unha ventilación adecuada para evitar o sobrequecemento.
- Use only the provided power cable and accessories.
- Desconecte a alimentación antes de facer calquera conexión ou axuste.
- Non intente realizar o mantemento da unidade vostede mesmo. Encargue calquera mantemento a persoal cualificado.
3. Contido do paquete
The GTR-PWR-12 includes the following items:
- 1 x GTR-PWR-12 Guitar Effects Pedal Power Supply
- 1 x cable de alimentación
- 12 x DC Power Cables (various lengths)
- 1 x 9V Battery Clip Cable
- 1 x Mini Jack Cable
- 1 x USB-C Male to USB-A Female Adapter Cable
- 1 x Current Doubler Cable
- 1 x Polarity Inverter Cable
- 1 x Gooseneck White LED Light

Image: The GTR-PWR-12 power supply unit and all included cables and accessories, neatly arranged.
4. Características do produto
- Multiple Isolated Outputs: 12 isolated outputs for flexible pedal power, including 18V, 9/12V (switchable), variable 4–9V for battery-simulation, high-current 9V (300mA & 500mA), 5V USB (2A), and an integrated AC outlet.
- 2300mA Total Current: Delivers a maximum of 2300mA.
- Compatibilidade global: AC input supports 115V/230V (50–60Hz) for worldwide use; DIP switches allow voltage adjustment on select outputs.
- Rugged Metal Housing: Heavy-duty all-metal enclosure with slotted vents for heat dissipation.
- Integrated Mounting Slots: For easy pedalboard integration.
- LED-Lit Power Switch: For convenient on/off control.
- Courtesy AC Outlet: Rear-panel AC outlet for additional devices.
- Gooseneck LED Light: Included for pedalboard illumination.
5. Instrucións de configuración
5.1. Conexión inicial
- Place the GTR-PWR-12 on your pedalboard or in a suitable location. The unit features integrated mounting slots for secure attachment.
- Connect the included mains power cable to the AC input on the rear of the GTR-PWR-12.
- Plug the other end of the mains power cable into a compatible wall outlet. Ensure the voltage selector switch (if applicable for your region) is set correctly (115V or 230V).

Image: The GTR-PWR-12 power supply mounted on a pedalboard with various guitar effects pedals connected.
5.2. Conexión dos pedais
- Identifica o voltage (V) and current (mA) requirements for each of your pedals. This information is usually found on the pedal itself or in its manual.
- Match the pedal's requirements to the available outputs on the GTR-PWR-12. The unit offers a variety of fixed and adjustable outputs:
- 2 x 18V DC @ 120mA
- 3 x 9/12V DC @ 120mA (adjustable via DIP switches)
- 2 x 4-9V DC @ 120mA (continuously variable voltage)
- 2 x 9V DC @ 300mA
- 2 x 9V DC @ 500mA
- 1 x USB-C @ 5V/2A (10W)
- For outputs 3, 4, and 5, adjust the voltage between 9V and 12V using the DIP switches located on the front side of the unit. For outputs 6 and 7, use the continuously variable knobs to set the voltage entre 4V e 9V.
- Connect each pedal to the appropriate output using the provided DC power cables. Ensure the polarity matches (center-negative is standard for most pedals; use the included polarity inverter cable if a pedal requires center-positive).
- Connect your pedals to each other using patch cables to establish your signal chain.

Image: Close-up of the GTR-PWR-12 showing the DIP switches for adjustable voltage on outputs 3, 4, and 5.
5.3. Xestión de cables
To maintain a tidy and professional setup, route all power and patch cables neatly. The GTR-PWR-12 can be mounted to allow cables to be tucked underneath the pedalboard, preventing tangles and accidental disconnections.
Video: A demonstration by Gator Cases on how to set up and power a pedalboard using a Gator power supply, including connecting pedals and managing cables.
6. Instrucións de funcionamento
6.1. Acendido/apagado
Once all connections are made, press the LED-lit power switch on the front of the GTR-PWR-12 to turn the unit on. The LED will illuminate, indicating that power is being supplied to your pedals. Press the switch again to turn the unit off.
6.2. Using the USB-C Output
The USB-C output (5V/2A) can be used to power compatible USB devices, such as a tablet, smartphone, or the included gooseneck LED light for illuminating your pedalboard in dark environments.
6.3. Using the Courtesy AC Outlet
A courtesy AC outlet is provided on the rear panel of the GTR-PWR-12. This allows you to plug in an additional wall-wart device directly into the power supply, reducing the need for extra power strips.
7. Mantemento
- Keep the unit clean by wiping it with a soft, dry cloth. Do not use liquid cleaners.
- Ensure the ventilation slots are free from dust and obstructions to maintain proper airflow.
- Regularly check all cables for signs of wear or damage. Replace any damaged cables immediately.
8 Solución de problemas
- Sen potencia aos pedais: Ensure the mains power cable is securely connected and the power switch is on. Check the wall outlet for power.
- Pedal Not Functioning: Verify that the pedal's voltage and current requirements match the output it's connected to. Check the polarity of the power cable.
- Unwanted Noise (Hum/Buzz): Ensure all outputs are isolated. Check for proper grounding. Verify that the current draw of your pedals does not exceed the output's maximum current.
- DIP Switch/Variable Output Issues: Ensure DIP switches are fully engaged in the desired position. For variable outputs, confirm the knob is set to the correct voltage.
9. Especificacións

Image: Detailed diagram of the GTR-PWR-12's output specifications, including voltage e corrente para cada porto.
| Característica | Especificación |
|---|---|
| Número de modelo | GTR-PWR-12 |
| Peso do elemento | 5.74 libras (2.6 kg) |
| Dimensións do produto | 9.88 x 4.5 x 2 polgadas (251 x 114 x 50 mm) |
| Máxima corrente de saída | 2300 mA |
| Vol. De entrada CAtage | 115V/230V (50–60Hz) |
| Saída 1 e 2 | 18V DC @ 120mA |
| Output 3, 4 & 5 | 9/12V DC @ 120mA (DIP switch adjustable) |
| Saída 6 e 7 | 4-9V DC @ 120mA (Continuously variable) |
| Saída 8 e 9 | 9V DC @ 300mA |
| Saída 10 e 11 | 9V DC @ 500mA |
| Saída 12 | USB-C @ 5V/2A (10W) |
| Courtesy AC Outlet | Si |

Image: Visual representation of the GTR-PWR-12's physical dimensions and weight.
10. Información da garantía
Gator Cases products are proudly developed and backed by our team in Tampa, Florida. This product comes with a Limited Lifetime Warranty, ensuring quality craftsmanship and responsive customer support. For detailed warranty terms and conditions, please refer to the official Gator Cases websitio ou póñase en contacto co servizo de atención ao cliente.
11. Apoio
For further assistance, technical support, or to explore other Gator Cases products, please visit the official Gator Cases websitio: www.gatorcases.com





