Introduction
This manual provides essential instructions for the safe and effective use of your SLLEA AC/AC Adapter, model SLKFL2934290SLKF2819. This adapter is designed as a replacement power supply for Lectrosonics MM8 MMB Matrix Mixers and DSP4/4 4In/4Out Programmable Digital Audio Signal Processors. Please read this manual thoroughly before use and retain it for future reference.

Figure 1: Overview of the SLLEA AC/AC Adapter. This image displays the main unit of the adapter, featuring its black casing and attached power cords, including the barrel-tip connector.
Setup
- Verify Compatibility: Before connecting, ensure that your device (Lectrosonics MM8 MMB Matrix Mixer or DSP4/4 Digital Audio Signal Processor) requires an AC/AC adapter with the specified voltage and current ratings. Confirm the plug tip matches your device's power input port.
- Connect to Device: Insert the barrel-round plug tip of the adapter firmly into the power input port of your Lectrosonics device.
- Connect to Power Outlet: Plug the AC input cord into a standard 110V/60Hz AC wall outlet. Ensure the outlet is easily accessible.

Figure 2: Close-up view of the barrel-round plug tip and the standard US two-prong wall plug. This image highlights the specific connector type for compatibility verification.

Figure 3: The SLLEA AC/AC Adapter with an emphasis on its 8-foot cable length. This image shows the full extent of the cable, providing flexibility in placement.
The adapter features an 8-foot cable, providing ample length for most setups.
Operating Instructions
Once properly connected, the adapter will supply power to your Lectrosonics device. No further user interaction is required for the adapter itself. The device should power on as usual.
- Ensure the adapter is securely plugged into both the device and the wall outlet.
- Verify that the wall outlet is functional.
Maintenance
- Cleaning: Disconnect the adapter from the power source and the device before cleaning. Use a dry, soft cloth to wipe the adapter. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and moisture. Avoid tightly coiling the cables to prevent damage.
- Inspection: Periodically inspect the adapter and its cables for any signs of damage, such as frayed wires, cracked casing, or bent pins. If damage is observed, discontinue use immediately.
Troubleshooting
If your device does not power on after connecting the SLLEA AC/AC Adapter, consider the following:
- No Power:
- Ensure the adapter is fully plugged into both the wall outlet and the device.
- Test the wall outlet with another device to confirm it is supplying power.
- Check for any visible damage to the adapter or its cables. If damaged, do not use.
- Incorrect Plug Tip: Verify that the barrel-round plug tip of the adapter is the correct size and type for your device's power input.
- Device Specific Issues: If the adapter appears functional, consult your Lectrosonics device's manual for further troubleshooting steps related to the device itself.
Specifications
| Feature | Detail |
|---|---|
| Model Number | SLKFL2934290SLKF2819 |
| Input Voltage | 110V/60Hz AC/AC |
| Cable Length | 8 feet (approximately 2.4 meters) |
| Connector Type | Barrel-round tip |
| Item Weight | 1.06 pounds (approximately 0.48 kg) |
| Package Dimensions | 5.51 x 4.33 x 2.76 inches |
| Material | Plastic |
| Color | Black |
Safety Information
- This adapter is designed for indoor use only. Do not expose to rain or moisture.
- Do not disassemble or modify the adapter. This may cause electric shock or fire.
- Keep out of reach of children.
- Ensure proper ventilation around the adapter during operation.
- Disconnect from power when not in use for extended periods.
- Approved by CE & FCC for safety.
Warranty and Support
For warranty information or technical support, please refer to the contact information provided by your retailer or the manufacturer, SLLEA. Please have your model number (SLKFL2934290SLKF2819) and purchase details available when contacting support.