As usual I am messing with my gear!! I have a SWR LA10 for a practice amp. the speaker is an 8 ohm and I have a 4 ohm available to me that I would like to try out. There are no 4 ohm ratings for this amp in the manual (no external speaker jack) and I have read on this forum that going to low in an amps ohm rating can damage the amp, Is there a way that I can measure the amps capapabilities to go to a lower ohmage speaker? I do have a digital multimeter.