The RK-003 is a little kit made to mix your gear in the simplest way possible. The mixer can be used for audio but also for e.g. the splitting of sync signals.

The new ‘Quickie’ version is SMD pre-assembled, made as small as a keychain accessory, can thru the original signal and has solder points to modify it’s mixing/splitting functions.

Note: This is a ‘passive mixer’ which means there is no amplifier in it, only small resistors to protect the gear you’re mixing. You have to adjust volume on the devices itself and expect a volume drop which needs to be compensated on the amplifier on which your mixing to.