Dburdick: what's the rest of the system?
To add to others' posts, don't fret too much yet; keep in mind that our ears are not very sensitive to lows & (very) highs at low volume levels (remember those "loudness" controls? They added low mids & mid-highs to compensate for this)...
Maybe a component other than your amp -- which performs to yr satisfaction at higher levels, as you say -- could be upgraded. Speaker placement, equip support and pre-power combos are important here.
To add to others' posts, don't fret too much yet; keep in mind that our ears are not very sensitive to lows & (very) highs at low volume levels (remember those "loudness" controls? They added low mids & mid-highs to compensate for this)...
Maybe a component other than your amp -- which performs to yr satisfaction at higher levels, as you say -- could be upgraded. Speaker placement, equip support and pre-power combos are important here.