Sound pressure levels

[Nick Reed]

I have two swr workingmans 10 combos.

They are rated at 80w standalone or 100w output with an 8ohm extn cab.

I have been using them for small gigs driving each comb from the stereo outputs from one of my effects pedals. It’s sounds great but would I gain more SPL using one combo with an extn cab as opposed to the two separate combos.

Any advice greatfully appreciated.

[jrixn1]

38 minutes ago, Nick Reed said:

would I gain more SPL using one combo with an extn cab as opposed to the two separate combos.

No, because the 100W will be split between the two cabs: 50W each.

[Bill Fitzmaurice]

Maximum output isn't about watts, it's about sensitivity and cone displacement. If you have two tens sensitivity and cone displacement are the same, and so is maximum output,  whether they're driven by one amp or two.