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Need help with wiring second pair of speakers

I am considering hooking up a second pair of speakers to my 2 channel system. My integrated amp has only one set of left and right speaker terminals. I have heard that improper wiring can cause serious impedence issues.  My amp puts out a good amount of power. My primary pair of speakers are rated at 6 ohms (nominal) and the second pair are rated at 4 ohms (nominal). 

My questions are:
Firstly, will the two different impedences be compatible?
Secondly,  do I wire them parallel with cables from the amp feeding both sets of speakers; or in series by hooking up the second pair from the first pair?  I know one of these is wrong, but not which one.







larstusor

Showing 1 response by tls49

tls49's avatar
tls49
1,351 posts
 
Impedance for 4 ohm and 6 ohm in parallel is 2.4 ohms, in series is 10 ohms.

A series connection is + from the amp to + of the first speaker, then - from first speaker to + of the second speaker, and - of second speaker to - on the amp. A parallel connection can be a separate cables to each speaker from the amp or connecting second speaker directly to the first. Both of your descriptions seem to imply parallel.

Series is the safest, but will likely not sound good, and parallel will likely be too low of an impedance load for the amp.

Is this second pair of speakers for the same or different room?


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