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Post by eclypse on May 2, 2016 19:30:15 GMT -5
It's been bugging me just looking at my xpa-2 sitting there being wasted runing wides in my 7.1.2 setup after upgrading to a pair of xpa-1Ls.
How would I go about using that xpa-2 bi amped with the xpa-1L from the xsp-1?
I have the xpa-1Ls connected with xlr cables.. do I need a xlr splitter or can I use the rca out to the xpa-2? Or maybe the balanced sub left and right out?
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Post by jdc on May 2, 2016 20:25:22 GMT -5
Sure, all those outputs will work. If you're not using subs just set to full range and use the balanced sub outs.
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Post by lehighvalleyjeff on May 2, 2016 21:21:57 GMT -5
You might want to try a few things to see what sounds best but here is how I would set it up...
XSP-1 balanced out to XPA 1L for mids & highs
XSP-1 RCA out to XPA-2 for lows
You might notice a slight to moderate improvement with more dB and fuller bass. In theory your mids and highs might be clearer but that's in theory. YMMV. I've had great success passively biamping several systems. Let us know how it sounds! Good luck. Happy listening
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Post by repeetavx on May 2, 2016 21:50:55 GMT -5
I would definitely use the XPA-2 for the lows. The balanced and unbalanced outputs are usually a couple of dB different. You may need to increase your bass frequencies to compensate.
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Post by eclypse on May 2, 2016 23:57:44 GMT -5
Thanks guys.. I've read there's like a 6db difference between the balanced out to rca.. so I'd like to try the low balanced left and right out and keep the sub on the summed rca out.
Just gota order another pair of balanced cables.
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Post by lehighvalleyjeff on May 3, 2016 1:10:42 GMT -5
The XPA-2 has balanced inputs but it's not a fully balanced amp. Meaning RCA or XLR the signal is still unbalanced.
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Post by lehighvalleyjeff on May 3, 2016 1:12:10 GMT -5
What I mean is that there shouldn't be any reason to spend money on another set of XLRs unless you want to for aesthetics.
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Post by eclypse on May 3, 2016 9:28:05 GMT -5
I want to keep all xlr because of the volume difference (+6db) since I'm using balanced on the xpa-1L. No way to adjust the volume up on the rca connection if I use that on the xpa-2.
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Post by eclypse on May 4, 2016 8:33:28 GMT -5
Already ordered another set of xlr cables to use for the xpa-2 in bi amping.. then had a scary thought.
I've already blown and had replaced a subwoofer in my polk audio 705. Then added a sep sub to keep the low range off the mains to avoid this happening again.
So if I do as planed I'll be sending the low req range to the towers agsin and the sub. So that's not gona be a good long term idea for me when I use ht bypass durring movies.
So now it's either a xlr y cable or emotiva xlr splitter to bi amp off rhe main left and right out on the xsp1.
Prob is it will take a long time to get the emotiva xlr splitter from amazon. From emotiva they will charge $25 to ship them!
I can order just a xlr y cable if that would work.
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Post by jdc on May 4, 2016 9:26:37 GMT -5
Try the RCA outputs, couple db's less.
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Post by garbulky on May 4, 2016 9:39:24 GMT -5
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Post by eclypse on May 4, 2016 12:25:34 GMT -5
Thanks. That's the exact y adapter is was looking at. Just ordered it. Gona play around now using rca cause I can and see how it is.  Tomorrow I'll have the xlr cables and set it up right. |
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Post by eclypse on May 4, 2016 13:59:10 GMT -5
Crazy difference bi amping!!!!
My speakers are only rated for 250 watts but I've read they will use and love alot more just fine.
250 watts on the xpa-1L and 300 watts on the xpa-2 and I'm speachless!
No doubt there's some crazy seperation going on now more then before! A ton more midrange and bass as well as expected.
So what I'm I using now since it's not totally a pure mono block 2 channel setup?
No flipping doubt it's staying this way from here on out.
Honestly didn't expect this much of a difference.
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Post by eclypse on May 4, 2016 14:28:43 GMT -5
Even thought about using one channel off the xpa-3 and one off the xpa-2 to keep it like all mono blocks for music hehe..
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pongo
Seeker Of Truth
Posts: 1 
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Post by pongo on May 26, 2016 19:22:01 GMT -5
Crazy difference bi amping!!!! .... Honestly didn't expect this much of a difference. Just to clarify for me, you are doing passive bi-amping correct? (where the same signal is connected to both amps) I am new to hi-fi and am considering upgrading my system from a receiver to using a pre/pro and amps. I am looking at the XMC-1 and the new modular XPA Gen 3 amps. I am also trying to learn about bi-amping. My front main speakers are bi-amp capable and I am thinking of trying it. Regards, Greg |
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Post by eclypse on May 26, 2016 21:04:14 GMT -5
Crazy difference bi amping!!!! .... Honestly didn't expect this much of a difference. Just to clarify for me, you are doing passive bi-amping correct? (where the same signal is connected to both amps) I am new to hi-fi and am considering upgrading my system from a receiver to using a pre/pro and amps. I am looking at the XMC-1 and the new modular XPA Gen 3 amps. I am also trying to learn about bi-amping. My front main speakers are bi-amp capable and I am thinking of trying it. Regards, Greg Yes the signal is split with a y connector from the output on the preamp for both left and right channel. So yes ea amp is getting the same signal.. the internal crossovers in the speakers are seperating the high/mid and lowes.. top connection on rhe speakers are highs/mids and the bottom connection is the lows. Just make sure ea amp is using the same gain.. since you plan on using the gen3 amps it will be even. I had to remove my bi amp cause my amps didn't match. :/ If I had it to do all over again I'd just go xpa-1 pair and been done with it.. though I did not know my 250 watt rated speakers love wattage so much and really shine with more juice! Though really I can't complain.. I could not pass up these xpa-1l amps I got for only $200 ea. Crazy deal cause of a mix up. Though could of got 3 amps for $700.. then I could of just bought another and did the dual bi amp hehe.. wish the thought would of crossed my mind. |
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Post by novisnick on May 26, 2016 21:27:49 GMT -5
Just to clarify for me, you are doing passive bi-amping correct? (where the same signal is connected to both amps) I am new to hi-fi and am considering upgrading my system from a receiver to using a pre/pro and amps. I am looking at the XMC-1 and the new modular XPA Gen 3 amps. I am also trying to learn about bi-amping. My front main speakers are bi-amp capable and I am thinking of trying it. Regards, Greg Yes the signal is split with a y connector from the output on the preamp for both left and right channel. So yes ea amp is getting the same signal.. the internal crossovers in the speakers are seperating the high/mid and lowes.. top connection on rhe speakers are highs/mids and the bottom connection is the lows. Just make sure ea amp is using the same gain.. since you plan on using the gen3 amps it will be even. I had to remove my bi amp cause my amps didn't match. :/ If I had it to do all over again I'd just go xpa-1 pair and been done with it.. though I did not know my 250 watt rated speakers love wattage so much and really shine with more juice! Though really I can't complain.. I could not pass up these xpa-1l amps I got for only $200 ea. Crazy deal cause of a mix up. Though could of got 3 amps for $700.. then I could of just bought another and did the dual bi amp hehe.. wish the thought would of crossed my mind. Please excuse the interruption,,,,,,,,,I've never found a speaker that DIDN'T fall in LOVE with more clean POWER,!!    Now, back to your regularly scheduled programming! CEO
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