| Gallien Krueger Backline 115 combo Just bought a second-hand amp and i'm happy so far, it's just that I anticipate a need for more volume. So, reading the specs I see that the current setup is running into 8ohms for 115w. If the speaker is replaced with 4ohms impedance it will yield 175w. Can anyone suggest a 15inch speaker that would do the job nicely AND improve sound, yet be inexpensive. Thanks |