Radial Engineering has announced the BT-Pro Bluetooth DI box is now shipping.
The BT-Pro audio signal path is said to take advantage of the latest Bluetooth wireless A2DP interface over 2.0 EDR (Enhanced Data Rate) for higher speed transmission and better audio quality. This employs a 16-bit wireless compressed format with the actual bit rate determined by the source material. Inside, the BT-Pro converts the data to a stereo analog signal, producing up to +4dB at the output. The signal level is controlled by a front panel potentiometer that is shared with the built-in headphone amp. This features a standard 3.5mm mini TRS and is used for trouble shooting. For greater flexibility, a stereo-to-mono switch is provided that sums the input for dual-mono operation to reduce input requirements on the mixer or split the signal to the PA and monitors. Should noise be encountered, two side-mounted switches insert isolation transformers into the signal path. This is supplemented by a ground lift switch for the XLRs to further help eliminate ground loops.