Connecting Infinity RS 4.5's

[Infinity!]

I'm curious if you are using the Active Crossover unit for your 2.5's and if you have the manual for that? There is a paragraph in it that threw me.
"Since the RS crossover/equalizer inverts phase at its outputs, both in the equalizer and bichannel
modes, it is recommended that each amplifier to speaker cable be phase reversed at
one end only so that red or "hot" at the amp end goes to black at the speaker input terminals.
This is done to preserve overall system absolute phase."
http://www.infinity-classics.de/technik/manuals/RS 2.5 - 4.5 Crossover Manual.PDF

Someone also sent me a few pages from the 4.5 User Manual (which I'm still seeking) and this made me question my understanding. (see attached image)
View attachment 1466623View attachment 1466623

This leads me to believe that since my amplifiers (M-70 and M-45) aren't identical, perhaps I should eliminate the Active unit entirely. ???

Hey, just wondering if you ever figured this out for using the 4.5 eq? I just got a pair of 4.5's and I read the same thing about the phase of the external EQ. So I am supposed to plug the red speaker cable ends into the black binding posts of the speaker and the black speaker cable ends into the red binding posts correct?

 

[pauljh]

Hey, just wondering if you ever figured this out for using the 4.5 eq? I just got a pair of 4.5's and I read the same thing about the phase of the external EQ. So I am supposed to plug the red speaker cable ends into the black binding posts of the speaker and the black speaker cable ends into the red binding posts correct?

If you think absolute phase makes a difference, that is what you should do. If you don’t think absolute phase makes a difference, then you can either hook them up that way, or not.

 

[Infinity!]

If you think absolute phase makes a difference, that is what you should do. If you don’t think absolute phase makes a difference, then you can either hook them up that way, or not.

The whole subject of absolute phase baffles me. I honestly have never done this with any of my speakers and/or systems before. Maybe I will do an A/B test on them tomorrow. What are your toughts on this subject? Itd be interesting to know who actually does this and who doesn't.

 

[Kev_rat]

For my 4.5s I also have the external crossover
Tried playing with it and gave up as I didn't get any improvement so I simply connect them to a single amp which works perfectly well

from my experience they are not hard to drive - 4 ohm capable amps required of course
an F5 works well at reasonable listening levels but a Big Krell really gets them going

 

[Infinity!]

For my 4.5s I also have the external crossover
Tried playing with it and gave up as I didn't get any improvement so I simply connect them to a single amp which works perfectly well

from my experience they are not hard to drive - 4 ohm capable amps required of course
an F5 works well at reasonable listening levels but a Big Krell really gets them going

I havent not used the eq yet, maybe I will give that a try later. For my RS IIb's, when i dont use the EQ, the sound is very unappealing. Sloppy bass and very tamed highs. I wonder how it compares to the 4.5's, in regards to the EQ?!

 

[belgiansound]

I also wonder how i turned out, how do they sound? They 'only' go to 32kHz instead of +40kHz, do you hear this? How is the midrange, can the woofers handle both the deep bass and the transition to the mid? Not too harsh?