Jump to content
The Klipsch Audio Community
Sign in to follow this  
Avi Brenner

RP-140sa and RP-280fa wired in parallel

Recommended Posts

Hi,

 

I have generally a klipsch setup with rp-280fa, rp-450c, and s-250s sorrounds, I also have rp-140sa pair and a pair of svs prime elevation speakers. I only have a 11.2 ch receiver (and a 7-channel, 200 watt amp for my front, center and sorround speakers).

 

I was thinking of wiring my prime elevation speakers as back height channels, and wiring then wiring the rp-140sa and the height channels for the rp-280fa so the same output in parallel, and wondering if this makes any sense at all, would work, or is too crazy.

Share this post


Link to post
Share on other sites

Stop!

 

Somebody else with more technical background will give you more detailed information, BUT:

 

If I remember correctly, wiring two identical speakers in parallel will halve the nominal impedance.  So, two 8 Ohm speakers = 4 Ohms the amplifier will "see."   You don't know how the impedance varies with frequency on those speakers, unless you have found a source. 

If it drops to, say, 3 Ohms at a certain frequency, two such speakers will cause the amp or AVR to "see" 1.5 Ohms at that frequency.  I'm assuming that would cause overheating, clipping, shutdown, (fire???) or The Big Sleep.

 

JBL used to have "Series by Parallel" wiring diagrams for some multiple woofer systems (like the big 4 woofer, horn loaded, ones they used in 70 mm Todd-AO theaters).  They explained that Parallel halves the nominal impedance, and Series doubles it.  But to make that work, one needs 4 identical speakers, I would think.  At my level, we are getting into imponderable impedance.

  • Like 1

Share this post


Link to post
Share on other sites

For simplicity, if there is a way to wire things to a direct channel and avoid the series or parallel  will work better.  When wired together, the two set of speakers act as one and no additional surround benefit is achieved.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...