8ohms + 6 ohms?

[SubsonicSimpleton]

If he made such a bodge in the first place, better to check the wiring yourself - it isn't complicated.

[EBS_freak]

What a f**k up.

[xgsjx]

Have you got his email?
Send him a virus & see how he likes to have things complicated.

[deepbass5]

Just read this three times to pick my way through the changes.
The guy obviously does not know what he is doing so forget him and find someone who does.
Series is a safe option as the current delivered by your amp will pass evenly through both speakers, but the impedance at 20 ohms is going to seriously cut the output level from your amp. The other configuration = parallel will split the power unevenly in favour of the lower resistance speaker possibly frying it.
But recheck what you are telling us when you mean Cab say cab and when you mean speaker say speaker, as i am getting confused
suggestion wire the good existing 10" at 8 ohm in series with the new 10" at 4 ohm replacement = 12 ohm (2x10") cab . then run this cab in parallel with the 8 ohm 15" until you get the right replacement. ?
good luck but you would prob be better off running just the one good old 10" speaker in the (2x10)cab in parallel with the 15" cab giving you 4 ohms.

[subrob]

15" at 8 ohms, paralleled with the oddity cab re-wired using only the 16 ohm 10, and the 4 ohm as a passive radiator until a matching 16 ohm 10" is found, [i]should[/i] work ok and keeps your amp in not-on-fire state.

[0175westwood29]

probs a good thing he left the country, id be pretty angry if someone did that to my gear hes made the cab pretty usless, id do what some have suggested and just buy a new 16ohm so you can use the cab as you want again.

andy

[mikebass84]

Well my head is currently broken (see my other thread) so for the time being I'm gonna focus on getting that fixed. Then get myself a new speaker. Any recommendations? (don't have a lot of money to spend)