I think I may be running my 5153 head through the wrong cab maybe??

[Russ73]

I run the 50 watt 6L6 and the LBX through an Orange ob 2x12 and was always satisfied with the tone BUT today at a music store I was demoing a guitar and the same head was sitting atop 2 closed back nonome cabs, larger 1x12s, and I swear it sounded nastier and warmer and fuller even...now I want to replace the Orange OB cab.....ughhh more experimenting.....lol

 

[Baelzebeard]

Closed back cabs will definitely sound different than open back, all other things being equal.

If that's a difference that you like, then it might be time to go cab shopping.

 

[Zado]

Closed back will always sound fuller and tighter in lower mids. Way more directional also.

 

[Axe-Man]

Maybe try a piece of wood in the back to close it up. See what you think anyway. It will make the amp much tighter and punchier. OB cabs do have their charm though especially for home IMPO.