This seems better aimed at mobile Podcasters and
Videocasting rather than DJs or Audio Techs.
A few common denominators among DJs:
- DJs don't (and shouldn't) rely on mics that terminate in 3.5mm connections.
- Mono RCA is dead. It simply doesn't exist anymore. Maintaining the stereo signal and switching the mixer to mono is the preferred method for live PA.
- Unused parallel plugs can make contact with a chassis or other ground and introduce significant noise into the system.
Presently, I don't think a lack of cables is the problem people truly experience. The two most common audio problems are:
- Lack of a 3.5mm output on the device
- Poor quality or poor connection with 3.5mm jacks and plugs
Having more cable options does nothing to resolve these two common problems.
The future is USB.
Wherever possible I presently avoid the 3.5mm jack and use a USB direct box to bring the audio into the mixer. It may involve changing a setting on the device, but the quality of the resulting audio now lies in my choice of DI rather than the availability or condition of analog outputs on the device.
A small device that accepts a USB connection and then isolates the stereo audio to a line level stereo 1/4" TRS and mic level mono XLR would be far more useful. If it had an adapter at the device end to switch from USB C to Lightning - that would be pretty cool too.