it breaks this 'direct' connection by adding a buffer (or several ) into the circuit. When you insert another device (the pedalboard) in between the guitar and the (Hi-Z) input. So, when you plug a guitar directly into an amplifier, or one of the other emulated devices like a stompbox, there is a direct electrical relationship between the guitar pickup and the device input, with it's particular impedance loading characteristics. This is what Unison is trying to model - the impedance loading characteristics of the original emulated device in combination with the guitar pickup or microphone. The difference is imparted in the analog stage, by the dynamic electrical loading of the given analog transducer (guitar pickup, mic diaphragm), and the way it interacts with the impedance of the (mic/Hi-Z) input stage. In terms of the digital processing, there is no difference using the plugin in the Unison slot or in a regular insert slot. Post A/D conversion the plugin then overlays the other sonic characteristics of the emulated device. In the analog realm Unison does simple impedance matching of the original emulated device for the mic pre, or Hi-Z input, depending on whether it is a channel strip, guitar amp, stomp box or outboard effect.Ģ. Unison is, as I'm sure you are aware a hybrid approach that combines two processes one in the analog domain and one in the digital:ġ. That is certainly a fair question, and hopefully I can make my meaning clear, and I apologise in advance for being long winded.
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