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Post by brubacca on Feb 26, 2017 16:16:22 GMT -5
How many input cables are you running to the XPA-5 Gen 3?
It sounds like you are only running one pair of L/R cables to inputs 1 and 4 on the XPA-5??
Then you are trying to bi-amp , with speaker output (1) going to HF, output 2 going to LF on your speaker. Then outputs 4 &5 going to HF and LF on your other speaker?
Is this right?
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pcga
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Post by pcga on Feb 27, 2017 3:58:51 GMT -5
Yes, that is correct, Brubacca, - one pair of cables going from pre-amp to main input on the power
Left Loudspeaker connected to Power modules 5+4 and Right Loudspeaker connedted to Power moduled 1+2
+ one cable from sub out (the summed channel) to Power 3 - then cable to sub (sub does not have power amp it-self) from Power module 3
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Post by junchoon on Feb 27, 2017 5:02:58 GMT -5
Sorry guys, if this is the wrong thread, but I could not figure out where to post it. And I do use the XPA Gen 3 for stereo....  and do tell me where to post my questions if this is the wrong place, thanks.
Two Questions:
I just got my new XPA Gen3 5 modules home : Outstanding sound. I replaced an old Linn 5125 - and the Emotiva Gen3 - though cheaper - sounds MUCH better - LEAGUES better. Both during low volumes and especially when power is needed. The XPA Gen3 is very clear in the mid-range and much better bass handling. Treble is beautiful. It was so easy to set it up. My old Linn needed cables to pass on signal from one module to the next for the bi-amp set up. The Emotive does not. WHY does it work? Is there some internal logic in the XPA-Gen 3 guessing (correctly!) that the two left modules are powering one speaker and the two right modules power the other speaker? I have have a bi-amping stereo-set up: - Connecting the pre-amp (XSP-1) to the main input on the XPA Gen 3.
- Using one pair of modules to run the front Sub/bass in each speaker - separate speaker cables to the sub/bass in each speaker
- Using second pair of modules to run the mid-range and treble in each speaker - another set of speaker cables to midrange/treble in each speaker
- Using the fifth module of the XPA Gen3 to run a sub placed in the back of the room to balance out room distortion around 46-48 hz.
Great, however I would like to understand why it works?
Secondly - the power goes from -100 to 0 and then on to +Something. What is "0" (besides being very loud? :-) And how far does the power goes beyond 0 -to +"how much"? The XPA Gen3- does not really kick in before -40 and up and then the curve seems to be fairly exponential - not linear at all. The XPA Gen 3 user-manual is very short and does not explain this.
Thanks!
Peter
looks like the connecting links on the speakers were not removed. hope I am wrong. caution - just unplug all the power cords of all connection equipments BEFORE you do anything else if the above is true - then remove the connecting links, and carefully reconnect the speaker cables and you will need a pair of Y-Splitter for each channel of the XSP-1 outputs before plugging the power cords. good luck! |
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pcga
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Post by pcga on Feb 27, 2017 5:46:03 GMT -5
Thanks for reply Sensei Junchoon. On the speakers, the connections have been removed. Bass and Mid-Trebel are seperate.
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pcga
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Post by pcga on Feb 27, 2017 5:48:45 GMT -5
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Post by brubacca on Feb 27, 2017 7:18:32 GMT -5
Yes, that is correct, Brubacca, - one pair of cables going from pre-amp to main input on the power Left Loudspeaker connected to Power modules 5+4 and Right Loudspeaker connedted to Power moduled 1+2 + one cable from sub out (the summed channel) to Power 3 - then cable to sub (sub does not have power amp it-self) from Power module 3 Stop right here. I highly suggest you speak with Emotiva tech support. To my knowledge the xpa-5 gen 3 that is available today is basically 5 separate amps in the same chassis. If you have a rca cable to module 1 then only module 1 speaker outputs are getting that signal. Module 2 should be no signal out. (Ditto 4&5). I think that you have the High Frequency drivers being powered by the XPA and the low frequency drivers are getting no signal. If you have floorstanders that probably means you are energizing the tweeter and midrange while not energizing the woofer. Basically the tower is now a bookshelf (crude approximation). Why does this sound better? It is very possible that the sub and bass drivers from your speakers are overloading the room, or just aren't playing together nicely. Please contact tech support so they can work you through this. My info above is a deduction based on the information you gave us. I could be completely wrong on this, but this is what it sounds like to me. |
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pcga
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Post by pcga on Feb 27, 2017 7:28:00 GMT -5
Thanks, Brubacca - I will cal them later tonight.
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pcga
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Post by pcga on Feb 27, 2017 8:14:12 GMT -5
An afterthought, if the XPA GEn 3 modules were completely indenpendent, they should have a seperate input for each module (as my old Linn 5125 did). The XPA Gen3 does not, Hence my suspicion that some internal logic tells it how to operate. I know you point with room distortion - that is why I the old set up had a filter to the main-front subs, and am using the filter as well on the XMC
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Post by brubacca on Feb 27, 2017 9:36:45 GMT -5
Something really isn't adding up. The XPA-5 should have 5 blades that all have rca/XLR input and pair of speaker output. A XPA-3 should have 3 blades with the same as above.
The stereo modules on this thread are not available yet nor are the double wide 600w modules.
Good luck with you tech call, I hope they get this sorted out for you. I'm officially stumped.
I have a pair of XPA-100 Monoblocks that have one input and dual speaker outputs and internally they are tied together, but I didn't think that the XPA-5 had this. I can tell you a friends XPA-5 Gen 2 does not.
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pcga
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Post by pcga on Feb 27, 2017 10:26:18 GMT -5
Thanks - sorry if I mislead you. I have a XPA Gen 3 5-blade. As depicted in my drawing - attached. And it seems to work as if the blades are internally linked. Will speak with Tech support later today and update this thread.
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KeithL
Administrator 
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Post by KeithL on Feb 27, 2017 14:43:42 GMT -5
While the blades on the XPA Gen3 share a common power supply, their signal connections are NOT INTERNALLY LINKED.
Therefore, you MUST have something going on with the speaker connections or the speakers themselves.
Note that SOME speakers have connections between the sections, and even between the channels, through the crossovers - so we would really need to know what speakers you have.
Incidentally, the "0" setting on the XMC-1 is 0 dB (which is a gain of 1).
The maximum gain is +11 dB.
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pcga
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Post by pcga on Feb 27, 2017 16:30:07 GMT -5
Thanks Keith for your reply. Speakers are Audiovector Si 6 AA - they have a connector on the back that is linking treble and mid. I have seperate cables from treble/mid to and from bass to each blade.
There is clear bass coming from the main.
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pcga
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Post by pcga on Feb 27, 2017 16:39:35 GMT -5
As I am connecting the pre-amp to the XPA Gen 3 using the main input -does that not supply the same signal to all 5 blades?
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KeithL
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Post by KeithL on Feb 27, 2017 16:47:49 GMT -5
I'm a little confused when you say "main input". EACH BLADE on the XPA Gen3 has its own Balanced Input and Unbalanced Input.... There is no "main input" that supplies signal to more than a single blade. There is a single TRIGGER Input, but it only accepts a 12 VDC trigger signal.... and NOT an audio signal. Perhaps you could post some photos of the back of your amp so we can see how it's connected. As I am connecting the pre-amp to the XPA Gen 3 using the main input -does that not supply the same signal to all 5 blades? |
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pcga
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Post by pcga on Feb 27, 2017 16:56:39 GMT -5
You are right - that was not correct. I use the main OUT on the XSP to Blade 5 and 1. There is no connection to the Blades 2 and 4 (Blade 3 is connected to the summed sub output to the XSP. It is nigt here, and a picture doesn't work now (just tried)..
Are you saying I need split cable from the XSP to the XPA Gen 3 ? If so can I get a XLR split cable?
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pcga
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Post by pcga on Feb 27, 2017 17:57:19 GMT -5
I stand corrected - the bass I heard from the main speakers was simply the very sensitive built in sub that were "swining along". When I connedted the XSP to the XPA uing tow split cables(non balanced) I sudden got a lot more bass and clarity (and some room distortion, I need to manage)
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KeithL
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Post by KeithL on Feb 27, 2017 18:05:57 GMT -5
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pcga
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Post by pcga on Mar 1, 2017 5:14:15 GMT -5
Thanks a million Keith. Is it "worth it" to use xLR
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Post by Casey Leedom on Mar 1, 2017 13:21:15 GMT -5
XLR is good for Very Long Runs and also when you can't keep your Low-Level Signal and Power Cables from running along side each other. That said, getting reasonable XLR Cables is so cheap and there are no downsides to using them, so why not? I got some Very Nice XLR Cables, Premier Quad Pro 5000 Series, from B&H Photo in New York City Which are well shielded with Quad Twisted Conductors and Neutrik XX Connectors. 10 foot cables. They also have a very nice article on XLR Cables that's worth reading. Casey |
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Post by bigsam411 on Mar 10, 2017 16:14:02 GMT -5
I assume there is still no word on Price or availability of these? I am pricing out an HT system and would love to know.
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and do tell me where to post my questions if this is the wrong place, thanks. 
