Need to connect your laptop to the house sound system? The Laptop Sound Port devices are a range of compact audio adapters to convert the line-level sound output from a computer to a mic-level balanced signal on an XLR cable, suitable for connection to a professional sound desk. A "ground lift" switch eliminates the hum often heard when plugging computers into audio mixers, and a rotary button controls the volume.
The Laptop Sound Port audio adapters can also be used in the other direction - to plug an XLR source into a mic-level input, for example on video cameras which only have mini-jack microphone inputs.
Single channel 3.5mm Stereo Mini Male to 3-Pin XLR Male in-line adapter, with ground-lift and volume control.
Dual channel 3.5mm Stereo Mini Male to 3-Pin XLR Male In-Line Adapter with USB interface.