I'd look into your amp as well. A 40 watt rated tube amp will be way louder than a 40 watt solid state amp which is something to keep in mind as well.

Fender makes some pretty sweet tube amps in that wattage range... the Peavey Classic 30 is another excellent option and may save you a few bucks. I had one of those years ago and kick myself for letting it go... these days I'm draging around a Twin Reverb RI...way more amp than I need but there's certainly no problem cutting though!

Have you tried setting your amps bass and mids on ten and backing off treble to 6or7?I'm not familiar with your amp but if it has a presence control try putting that on 10.Also set your master volume on 10 and just adjust your levels using the other volume controls.

Just another opinion:

Could it be your band is playing to loud. For a while my band went through a volume wars phase. I would turn up to hear me, everyone would turn up to hear themselves, I would turn up some more, they would turn up, and this would continue until someone lost, which usually was me.

So, what did I do, I went and bought a Fender Twin Reverb. Now I win. What did the lead guitarist do, he bought a Peavey Triple XXX halfstack. So he wins.
Our bass player promptly realized we were both idiots, so he won because he didn't spend any money.

Eventually, we learned to turn down, and in the event we wanted to hear ourselves better each guitarist got his own type of monitor, be that a speaker in front of you or in ear, it really helped keep the volume in check and our tone got better because we snapped out of our gain war, and we became tighter as a band.

What model amp was your line 6??? I'm using the line 6 flextone iii xl

Anyway, that's just what we did, by the way, before the Fender Twin I was using a 150w Line6 2x12.

oh yes...the lovely work out you get from luggin a twin from space to stage to space to stage
love the sound tho

The JCM800 setting should have enough grunt and definition to cut through any mix,I use it on my Vox AD120 VTH and it would cut through brick walls.

oh yes...the lovely work out you get from luggin a twin from space to stage to space to stage
love the sound tho

Some good advice here in the recent posts. There is no doubt that the Line 6 can cut through if its operating properly ... and with nice tone, too. Even though the solution here is EQ (likely needs to dial up some mids), some new pickups may also be in order, as well, as some times weak pups just don't drive the rig properly. Yeah, you can go to some stacked single coils, for sure. But if you want to stay with pure single coils, even some Tex Mex would do the trick, as they are quite fiery Alnico V pups.