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Post by counterpoint on Jan 8, 2013 19:01:39 GMT -5
Hey all,
I'm connecting the XDA-2 and the XPA-200 with XLR cables. Now, I connected the X-Ref 12 using the RCA outputs of the XDA-2 and I tried daisy chaining my Ultra Sub 10 using the XLR output of the X-Ref 12 but that didn't work. I'm guessing that only works if you're using the XLR input of the sub. So my question is, am I going to have to use an RCA splitter?
On a side note and just out of curiosity, if you wanted to, how would one go about connecting a sub with a single XLR input to the XDA-2 which has 2 XLR outputs (L/R)?
Thanks.
counterpoint
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Post by garbulky on Jan 8, 2013 20:56:01 GMT -5
Maybe an XLR 3 pin to 4 pin convertor? I honestly don't know. Just throwing some guesses.
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Post by Dark Ranger on Jan 8, 2013 21:43:42 GMT -5
I have an XDA-2 + XPA-200 setup connected via XLR. Although I normally use this in a straight full-range 2.0 configuration, sometimes I want the subwoofer to play along. For that, I connect my sub via the RCA outputs from the XDA-2. If I was in your situation with two subs, I'd use Emotiva's RCA splitter. That way you can utilize both subs. Otherwise, I have no ideas at the moment for using a single XLR input. |
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Post by rocky500 on Jan 9, 2013 9:27:20 GMT -5
I think this will work. Just run 1 RCA lead to one sub and the other RCA lead to the other sub. So only one lead to each sub.
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Post by counterpoint on Jan 9, 2013 12:33:30 GMT -5
I think this will work. Just run 1 RCA lead to one sub and the other RCA lead to the other sub. So only one lead to each sub. So, set them up in stereo? That would make sense if they were matching subs, but since they are not is that appropriate? |
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Post by Dark Ranger on Jan 9, 2013 13:18:52 GMT -5
I think it also comes down to placement. If the subs are positioned for stereo (e.g. left sub next to left speaker, right sub next to right speaker), this arrangement could work. However, you still have the issue of non-matching subs. I have not heard either of these Emo subs, so this point is better left to others like geebo. Perhaps they sound very similar.
I think it's worth trying rocky500's suggestion first. If you're happy with the sound, you're good to go. Otherwise, two RCA splitters (for a stereo feed to both subs) will do the trick.
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Post by rocky500 on Jan 9, 2013 19:38:07 GMT -5
I thought I read somewhere that most all low bass is recorded in mono anyway. So I don't think you would hear a difference. Just might need to turn up the gain a little on the subs when only using 1 lead.
You could do your own test. Using one sub on say the left channel, listen to something.
Then switch to the right channel and have a listen to see if you can hear any difference.
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KeithL
Administrator 
Posts: 9,962
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Post by KeithL on Jan 10, 2013 2:35:06 GMT -5
The XDA-2 does not offer a summed output signal. The ideal thing you want to do would be to sum the two channel outputs, then send the summed signal to both subs. You need to sum them through resistors since simply shorting them together may cause distortion (unfortunately, Y-cables, and virtually all splitters, do NOT do this - they connect both lines together directly). This gadget (below) looks like exactly what you would want. It takes two RCA outputs, combines them through resistors, and sends the mixed output to a balanced XLR output - you would then send that output to both subs through a splitter (any splitter will work there). www.bhphotovideo.com/c/product/155414-REG/Rolls_DB14B_DB14_Director_Stereo_Direct.htmlIf either sub has a passthrough, you could simply chain them together and avoid the splitter. I think this will work. Just run 1 RCA lead to one sub and the other RCA lead to the other sub. So only one lead to each sub. So, set them up in stereo? That would make sense if they were matching subs, but since they are not is that appropriate? |
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Post by counterpoint on Jan 10, 2013 2:50:43 GMT -5
The XDA-2 does not offer a summed output signal. The ideal thing you want to do would be to sum the two channel outputs, then send the summed signal to both subs. You need to sum them through resistors since simply shorting them together may cause distortion (unfortunately, Y-cables, and virtually all splitters, do NOT do this - they connect both lines together directly). This gadget (below) looks like exactly what you would want. It takes two RCA outputs, combines them through resistors, and sends the mixed output to a balanced XLR output - you would then send that output to both subs through a splitter (any splitter will work there). www.bhphotovideo.com/c/product/155414-REG/Rolls_DB14B_DB14_Director_Stereo_Direct.htmlIf either sub has a passthrough, you could simply chain them together and avoid the splitter. So, set them up in stereo? That would make sense if they were matching subs, but since they are not is that appropriate? Thats pretty cool. I learn something new every day. But is there something like that without the unneeded attenuator controls? |
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Post by GreenKiwi on Jan 10, 2013 7:11:03 GMT -5
I'd just get a splitter. Maybe not as nice since you'd have two runs of wire, but you could put the splitter right at the first sub. I got some I really like from www.knukonceptz.com/I think emo said the xda would happily drive 6 devices off its outputs. |
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Post by AudioHTIT on Jan 10, 2013 12:17:04 GMT -5
I'd just get a splitter. Maybe not as nice since you'd have two runs of wire, but you could put the splitter right at the first sub. I got some I really like from www.knukonceptz.com/I think emo said the xda would happily drive 6 devices off its outputs. But without summing, theoretically you could be losing some information from one channel. |
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Post by GreenKiwi on Jan 10, 2013 14:27:03 GMT -5
I would just a stereo pair of RCA to sub 1 and have two splitters allowing me to run a stereo pair from sub 1 to sub 2.
Note you can put the splitters any where that makes sense depending on sub layout.
I'm using some myself to hook my xda up to my amp and sub.
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