I have a Spark 40 amp with an electric guitar connected, and want to be able to record the guitar to BIAB audio track. I've connected the amp's USB connection via cable to the computer, and Spark 40 shows up in BIAB as input device labeled "Microphone" and "Spark 40", so it would seem the connection is proper. I can't see any indication on the VU meters when I strike the guitar, but when I record a few seconds to the Audio track and play it back, I can hear the guitar; however it is extremely low volume, is muffled like it's underwater, and accompanied by what sounds like an echoing out-of-time click track, even though I had all other tracks muted. (I have a WAV file of it, but it doesn't look like WAV's can be uploaded to the forum). What am I doing wrong? I haven't yet tried connecting the Spark 40 a different way, i.e. its microphone output to input on a USB digital interface mixer on the computer, but it seems like the direct USB connection should work. Any ideas? Thanks.