I've recently been having trouble with My friend owns a tascam mixer (US-428) this is connected via firewire into his laptop. We were recording vocals earlier through a shure sm86 (yes I know it's not a suitable recording mic, and I don't want comments pertaining to the mic [unless the mic itself is the problem]) plugged straight into the mixer. When I sang into the mic there would be a delay from the time I sang into the mic until the time it was picked up on the software, and the vocals when recorded seemed very distant, like they were muffled or something. Does the mixer have a preamp, should I get a preamp for it, or is it just the mic? What can I do to 1:fix the delay and 2: fix the sound quality of the vocals.