No Sound from Spark? (Troubleshooting)

What's Missing? Start Here

Before diving into specific fixes, identify what type of sound is missing from your Spark amp:

• No guitar sound (but Bluetooth/USB/AUX playback works) → No Guitar Sound
• No USB audio (music from computer not playing) → No USB Audio
• No Bluetooth audio (music from phone/tablet not playing) → No Bluetooth Audio
• No sound at all after a firmware update → No Sound After Firmware Update

No Guitar Sound

If your Spark amp plays Bluetooth/USB/AUX audio but produces no guitar sound, follow these steps:

1. Step 1: Test with a different guitar and cable

   Try a different guitar and a different 1/4" instrument cable. This rules out a faulty instrument or cable — do not skip this step.

2. Step 2: Check the Guitar volume knob

   Make sure the Guitar volume knob on Spark's top panel is turned up.

3. Step 3: Check the Noise Gate in the Spark app

   If the Noise Gate is set too aggressively, it may cut off your guitar signal. Lower the threshold or turn it off temporarily.

4. Step 4: Try a factory preset

   Switch to a factory preset in the Spark app to rule out a corrupted or muted custom preset.

If none of the above resolves the issue, please contact support.

No USB Audio

If music from your computer is not playing through Spark via USB, try these steps:

1. Step 1: Turn up the Music volume

   Make sure the Music volume knob on Spark's top panel is turned up, and the volume on your computer and application is also turned up.

2. Step 2: Disconnect other audio sources

   Audio priority is AUX > USB > Bluetooth. If an AUX cable is connected, it takes priority over USB. Disconnect unused audio sources.

3. Step 3: Install the Windows driver (Windows only)

   Windows users must install Spark's audio driver. macOS does not require a separate driver.

4. Step 4: Try a different USB port and cable

   Switch to another USB port and/or cable. Avoid using a USB hub if possible.

No Bluetooth Audio

If music from your phone or tablet is not playing through Spark via Bluetooth, try these steps:

1. Step 1: Turn up the Music volume

   Make sure the Music volume knob on Spark's top panel is turned up.

   

2. Step 2: Turn up your device volume

   Increase the volume on your smartphone/tablet and the app you are using.

3. Step 3: Disconnect other audio sources

   Audio priority is AUX > USB > Bluetooth. If an AUX or USB cable is connected, Bluetooth audio will not play.

4. Step 4: Remove Bluetooth interference

   Close background apps on your device. Turn off Bluetooth on nearby devices (Bluetooth speakers, Apple Watch, etc.) that may cause interference.

5. Step 5: Try a different device

   If possible, test with a different iOS or Android device to determine if the issue is device-specific.

No Sound After Firmware Update

If your Spark amp has no sound after a firmware update, the update may not have completed properly.

1. Step 1: Reinstall the firmware

   Run the firmware update again. At the end of the process, click the Eject button and unplug the USB cable before turning off the amp.

2. Step 2: Perform a factory reset

   Complete a factory reset. Be sure to back up your presets in the Spark app first.

Still No Sound? Try a Factory Reset

If none of the above sections resolved your issue, a factory reset can often resolve unexpected behavior. Back up your presets before proceeding.

If the problem persists after a factory reset, please contact support with a description of your issue.