Rear Control Panel

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The rear panel houses every input, output, and control on Spark CAB 2. Match the numbers below with the diagram to find each item.

Inputs & Power Outputs

1. Spark Input - Connect the Headphone / Line Out of your Spark series amp to this input using the supplied 3.5mm stereo audio cable.

2. USB-C Charge Out - Use this port as a power output for your USB-C powered Spark amp or any other USB-C powered mobile device, and to update Spark CAB 2's firmware.

   The adjacent LED indicates firmware update status.

3. DC Out - Power a Spark 2 / Spark 40 by plugging it directly into this port with the supplied DC Power Cable.

   For Spark 2, attach the supplied DC Power Cable Adapter to the DC Power Cable.

4. Input Selector - Switch between the 3.5mm Spark Input and the two mono XLR/TRS Combo Inputs.

5. XLR/TRS Combo Input 1 & 2 - Plug in an external audio source with standard XLR or 1/4" cables.

   Do not connect powered outputs or speaker outs to these inputs.

6. Contour Switch - Boosts low and high frequencies to improve balance at low volumes. Disengage when jamming or performing at high volumes.

Volume, Outputs & Power

7. Speaker Volume - Adjust this knob to control the overall volume of the speaker.

8. Line Out Volume - Adjust this knob to independently control the Line Output levels (it does not affect the speaker volume).

9. Output - Output the sound of Spark CAB 2 to a PA system with a standard XLR cable (not included).

10. Ground Lift Switch - Press this switch to reduce any unwanted hum or noise.

11. Power Switch - Turn Spark CAB 2 on and off. Make sure all levels are turned down before turning it on.

12. AC Power Input - Connect the supplied AC Power Cord here and plug it into a power outlet. Make sure the Power Switch is in the off position before connecting or disconnecting the Power Cord.