I have an old pair of Peavey HiSys speakers which I am swapping with a forum member, is it possible one is 4 ohm and one is 8ohm, they look identical, plates on back hard to read, I used them for two years though a soundlab 800 watt amp and no problems. Will it cause problems if they are different?

I also have two hisys speakers are they the old wooden trapazoidal type 12" Woffer and a horn??

If so I think they should both be 4 Ohm as they were designed to be used with the bass unit and if you use them on there own for a disco the LF can damage the 12" drivers.

Hope this helps in some way

Nik

Yes 350 watt pair I used them stand alone as i say for two years

on these cabs it says hisys 2xt on each and they are identical apart from one has 2 speakon connectors and the other only has one.
inside behind the right hand handle is a switchable socket on the crossover for either full or dedicated subs. they are both set fpr full range.

but one driver has a label saying black widow 4 0hm the other says 8 0hm.

would an unbalanced load from the amp do any damage and would the 2 sides have a volume disparity with one being 4 ohm and one 8 ohm?
it is a tad confusing and a bit scary to fire them up and give them some welly if the amp may go bang.

also i have been informed by a peavy agent that it might not just be a case of swapping a driver as the crossover may be set to a different frequency on a 4 ohm than an 8 ohm. not definitely but possibly altho they look the same.

end our confusion.

As you can see I already sent them to Dave. I never took the things apart so never saw the 4 and 8 labels.

Yes, Peavey do them in both impedances and yes there'll be a major difference between the sound if they're used as left and right on the same system. If they're used with a two-way crossover in bass bins then they wont cross over properly if the bass bins are identical. The amplifier wont mind with a lop-sided load so long as both loads are within the amp specs.

Never come across this one before!!

Typical, This kind of thing always happens to me!!!!! I guess when you first start out without the added bonus of being a forum member you can end up buying a pup. Let me know if you can use them Dave and we will go from there.

I have used peavey speakers i use hysis 2s hysis 4s 215 subs 118 subs with peavey pv2000 amps the crosover is built in to the amp and i can honestly say they sound great and i have found them very reliable i got some unusual hysis 2s today they have a vocal socket on the back and a normal input socket with a swithed flat /eq im going to have to look up what differance this makes if any

Run the 8 ohm side in series with 1 sub ...that should bring that side down to 4 ohms ..use a 8 ohm sub too.