i got a lovely mr-8 its really good at doing vocals, guitar and bass. but the only problem is that its only got one input, which is ok for doing; bass, vocals, guitar one at a time but im looking at recording a drum kit which is gonna use 6 microphone (6 inputs) so im looking at getting a mixing desk with 12 inputs in which i will adjust the volumes of each microphone and then play them through the output into the multitrack. is this a good idea or is their anything else i can do?