[Ludwig77]

I've been recording my Mesa Boogie Lone Star with a Shure SM-57 mic in
front of it.

For some reason, the amp sounds muffled on the recordings. Could this
be my preamps?

I have the mic placed at an angle towards the edge of the speaker, but
the angle points it towards the center to balance the

lows with the highs.

I'm using an Emu 1820m sound card with a TFTpro built in preamp.

The guitar is a single-coiled Strat so it should have no problem with
the high frequencies. And the amp's high-end sounds

fine to me in the studio room.

If I need a preamp, what would be ideal for micing a guitar amp, that
is not going to kill my wallet?