Bluebox doesn’t seem to be sending MIDI clock

[perman00b]

Firmware 1.2.7

When using TRS Bluebox receives clock, but nothing seems to be sent when I hit “play” on the Bluebox. I tested this going into an MPC (midi monitor shows nothing coming in) as well as using a WIDI Jack and a MIDI monitor on iOS. I have not tried USB MIDI yet.

[perman00b]

Rolled back to 1.2.6 and 1.2.2 and both behave the same. Plugged the RK-006 into the USB port and am able to get clock out via the RK, but nothing via TRS. Booted into testing mode and loop back passed.

[Steve]

make sure you push the TRS all the way into the jack. It can be tight. You may check a different cable. I can verify that sync does work properly in 1.2.7 using my RK and several different cables. If you continue to have issues, please contact us directly for support.

[perman00b]

Thanks, Steve. Multiple cables and TRS to MIDI adapters, all confirmed inserted all the way, still no go. I reached out directly.

[perman00b]

Support resolved it. The manual states that the input TRS auto switches between type A and B, and I just assumed the same went for the output. This is incorrect, the output is strictly type B, but there is no mention of that in the manual.

I grabbed an A/B adapter and everything works as it should.

if I may offer a suggestion, please add the TRS type for both in and out to the manual.

Thanks to Steve and Lucas for getting me sorted.

[jayneural]

I wonder if the A/B switching is purely a firmware thing or if it would need hardware.

[perman00b]

I’m guessing that there has to be hardware that reverses the polarity. But I’m clueless and likely wrong.