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Post by Boomzilla on Jun 4, 2022 13:51:45 GMT -5
Probably a question for KeithL... The Emotiva Stealth DC-1 DAC has two pairs of outputs - a fully balanced pair and a pair of RCA unbalanced. How independent are the two sets of outputs? The specific question I have is: If I short the hot leads of the two unbalanced outputs together to feed a mono subwoofer, does this affect the channel separation of the XLR outputs? Yea or nay? Thanks - Boomzilla |
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DYohn
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Post by DYohn on Jun 4, 2022 13:56:00 GMT -5
Unless you mean what happens to them on July 4, you should edit your topic title.  |
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Post by creimes on Jun 4, 2022 21:29:00 GMT -5
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Post by vcautokid on Jun 4, 2022 22:23:57 GMT -5
  I am curious too. Testing understanding here as many subwoofers let you connect RCA left and right in, and you mange the subwoofer high pass from there. Not sure how important separation really is from the XLR to RCA. I think it is a non factor here. How do I know? I had a DC-1 and ran a subwoofer and powered monitors. RCA for the subwoofer and the XLR to powered monitors of my choice. Subwoofers here from Emotiva and SVS respectively. |
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Post by Boomzilla on Jun 4, 2022 22:37:02 GMT -5
Good info - thanks, but the spec sheet doesn't really answer the question. |
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Post by Boomzilla on Jun 4, 2022 22:41:34 GMT -5
I am curious too. Testing understanding here as many subwoofers let you connect RCA left and right in, and you mange the subwoofer high pass from there. Not sure how important separation really is from the XLR to RCA. I think it is a non factor here. How do I know? I had a DC-1 and ran a subwoofer and powered monitors. RCA for the subwoofer and the XLR to powered monitors of my choice. Subwoofers here from Emotiva and SVS respectively. As I understand you, you had two subs - one from each of the RCAs. That won't be possible for me. I'm running a single sub that is not proximate to the equipment rack. I'm using an Emotiva Virtual Cu wireless transmitter/receiver pair to send the (monophonic) sub signal from the equipment rack to the sub. Thus my desire to combine R/L outputs to a single mono signal (without losing channel separation for the mains feeds). I've done this before by using my Dayton DSP-LF box, but I think they've updated their software, and my (older) box doesn't like it - keeps freezing. I'm hoping the DC-1 will let me do what I need. |
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Post by vcautokid on Jun 4, 2022 22:48:01 GMT -5
I am curious too. Testing understanding here as many subwoofers let you connect RCA left and right in, and you mange the subwoofer high pass from there. Not sure how important separation really is from the XLR to RCA. I think it is a non factor here. How do I know? I had a DC-1 and ran a subwoofer and powered monitors. RCA for the subwoofer and the XLR to powered monitors of my choice. Subwoofers here from Emotiva and SVS respectively. As I understand you, you had two subs - one from each of the RCAs. That won't be possible for me. I'm running a single sub that is not proximate to the equipment rack. I'm using an Emotiva Virtual Cu wireless transmitter/receiver pair to send the (monophonic) sub signal from the equipment rack to the sub. Thus my desire to combine R/L outputs to a single mono signal (without losing channel separation for the mains feeds). I've done this before by using my Dayton DSP-LF box, but I think they've updated their software, and my (older) box doesn't like it - keeps freezing. I'm hoping the DC-1 will let me do what I need. Uh, nope one subwoofer. I had connections like the SVS subwoofer and Emotiva ones shown here as an example. An SB1000 at the time and connected both left and right RCA outputs to that 1 subwoofer. |
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Post by Boomzilla on Jun 4, 2022 22:51:30 GMT -5
Yes, my sub has stereo inputs - but I can't use them because I've got only one (monophonic) RF transmitter/receiver coming from the equipment rack. I have to combine the stereo channels to a single mono channel.
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Post by creimes on Jun 5, 2022 2:04:53 GMT -5
Good info - thanks, but the spec sheet doesn't really answer the question. Ah crap sorry, I thought it had the info you were looking for doh... haha |
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Post by Boomzilla on Jun 5, 2022 3:07:40 GMT -5
Thanks for looking it up for me, creimes - I appreciate it! |
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Post by Boomzilla on Jun 5, 2022 9:28:02 GMT -5
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DYohn
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Post by DYohn on Jun 5, 2022 9:33:03 GMT -5
Yes, my sub has stereo inputs - but I can't use them because I've got only one (monophonic) RF transmitter/receiver coming from the equipment rack. I have to combine the stereo channels to a single mono channel. What preamp is giving you stereo subwoofer output? |
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Post by Boomzilla on Jun 5, 2022 9:49:43 GMT -5
What preamp is giving you stereo subwoofer output? I have four choices - all of which have full-range stereo outputs: 2 DACs both with variable, full-range stereo outputs, an integrated amp with a full-range sub mono output, or my PT1 preamp - although this unit has a mono sub output, the 90Hz. (fixed) crossover frequency is too high for my subwoofer to handle. The sub sounds slightly muddy trying to reach that high. |
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DYohn
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Post by DYohn on Jun 5, 2022 10:12:45 GMT -5
What preamp is giving you stereo subwoofer output? I have four choices - all of which have full-range stereo outputs: 2 DACs both with variable, full-range stereo outputs, an integrated amp with a full-range sub mono output, or my PT1 preamp - although this unit has a mono sub output, the 90Hz. (fixed) crossover frequency is too high for my subwoofer to handle. The sub sounds slightly muddy trying to reach that high. So you are running full-range to the sub amp and using the sub amp for the crossover? Plus if your sub sounds "muddy" at 90Hz it is very likely a room effect that could be addressed via positioning. |
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Post by Boomzilla on Jun 5, 2022 10:33:06 GMT -5
Maybe, but of all the sub positions I’ve tried in this room, the current one has multiple virtues:
Lowest bass extension
Best decay
Tightest bass guitar
It just doesn’t like to go much over 70 Hz. without muddying the satellites.
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hemster
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Post by hemster on Jun 5, 2022 18:37:50 GMT -5
I would think that the 2 outputs are independent and you should be able to combine them for a mono output. I'm not sure how that affects the input impedance presented to the subwoofer however. It should be lower but that may not matter. Let's get KeithL's opinion on this.
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Post by Boomzilla on Jun 5, 2022 18:55:39 GMT -5
If the sub signal is going through the Virtual Cu wireless set, it shouldn't matter.
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Post by Boomzilla on Jun 7, 2022 15:33:39 GMT -5
FWIW - The unbalanced outputs of the Emotiva Stealth DC-1 DAC are independent of the balanced XLR outputs. Even when running the unbalanced outputs shorted together to form a mono signal, I'm still getting full separation from the XLR outputs.
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hemster
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Post by hemster on Jun 7, 2022 21:20:55 GMT -5
FWIW - The unbalanced outputs of the Emotiva Stealth DC-1 DAC are independent of the balanced XLR outputs. Even when running the unbalanced outputs shorted together to form a mono signal, I'm still getting full separation from the XLR outputs. Thought that might be the case. Thanks for confirming. |
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