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#135166 - 04/16/06 11:35 PM Re: Looking for a sub to mate with M3Ti and NAD
emorphien Offline
hobbyist

Registered: 04/09/06
Posts: 28
Loc: Rochester, NY
At 20k vs 22k it should be relatively close and I can simply adjust accordingly. I am however interested in what the quality of those crossovers is. I would probably intend to try first without them however.
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Axiom M3Ti NAD C320BEE, C542, PP-2, Rega P2 w/ Denon DL110 Grado SR325 HT in the living room

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#135167 - 04/17/06 12:28 AM Re: Looking for a sub to mate with M3Ti and NAD
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10372
Sean, it's the other way around; 6dB is the least steep. Generally, steeper is better(except that some audiophiles make a fetish of preferring 6dB first-order crossovers), and the THX specs for receiver crossovers call for a 12dB/octave high-pass to the speakers and a 24dB/octave fourth-order low-pass to the sub.
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#135168 - 04/17/06 12:35 AM Re: Looking for a sub to mate with M3Ti and NAD
St_PatGuy Offline
axiomite

Registered: 03/07/05
Posts: 7395
Loc: Glendale, Arizona
Again, thank you, John. Looks like I've got some reading to do. I've never really bothered that much with subs. For HT use it seems a bit easier where the receiver does the work. Two-channel stuff is a bit more work.
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#135169 - 04/17/06 07:27 PM Re: Looking for a sub to mate with M3Ti and NAD
emorphien Offline
hobbyist

Registered: 04/09/06
Posts: 28
Loc: Rochester, NY
Right now I'm looking in to cable options instead of buying a hard splitter like that. Perhaps a RCA-M to RCA-F/RCA-M cable with a short length which would simplify connectivity. I'm looking at DIY as well as custom order, I know Cobalt Cables can do it for me as I had a nice talk with one of their guys on phone and via email. He expressed concerns about signal degredation, which I have but I am willing to try it. The cost for two such splitter cables built by them at a length I specify is pretty much the same as buying the splitter and similar quality cable but a much neater option so I'm considering it.

I'm also considering DIY but after adding up everything I'd need that may not work out to be cost effective. It appears there isn't any rush, the subwoofer is out of stock right now anyway.

Ultimately I'll probably try the X-sub with my zany RCA-M to RCA-F/RCA-M splitter idea and a couple of those 70Hz high pass filters. Not particularly expensive and it'll be interesting to try.

edit: nevermind the black one isn't sold out until June, the light maple one is. I'll probably be waiting until June anyway.


Edited by emorphien (04/17/06 07:36 PM)
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Axiom M3Ti NAD C320BEE, C542, PP-2, Rega P2 w/ Denon DL110 Grado SR325 HT in the living room

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#135170 - 04/17/06 10:46 PM Re: Looking for a sub to mate with M3Ti and NAD
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10372
Carl, there doesn't appear to a good reason to make this more complicated or expensive. Regardless of what Cobalt said there's no appreciable "signal degradation" that'll occur over a few inches of wire and no need to be concerned about the "quality" of the cable. If you get the filters from Parts Express, the simplest and least expensive option for cable-type splitters, if you prefer that, would probably be to also get a couple of these from them.
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#135171 - 04/17/06 11:05 PM Re: Looking for a sub to mate with M3Ti and NAD
emorphien Offline
hobbyist

Registered: 04/09/06
Posts: 28
Loc: Rochester, NY
Yeah that's the other option. I'm just having some fun looking at different things.

I am actually looking at getting that from bluejeans cable if I go that route for the slightly better build. I've had probelms with some of the cheaper parts express cables wearing out on me if I'm reconnecting them. I'd like something a little more robust... and the Cobalt Cable isn't much more than the BlueJeans cable but would give me a cleaner cable arrangement.

Depends on how much my tax return is. Haha.


Edited by emorphien (04/17/06 11:12 PM)
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Axiom M3Ti NAD C320BEE, C542, PP-2, Rega P2 w/ Denon DL110 Grado SR325 HT in the living room

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#135172 - 04/18/06 07:02 AM Re: Looking for a sub to mate with M3Ti and NAD
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6720
Loc: The Peoples Republic of Il.
Whom ever you get the splitter from make sure you get one that has one male end into to female ends. This one made by Dayton is a pretty robust cable, no need to worry about it "wearing out" and it's pretty inexpensive to boot.

I've used both kind, the hard splitter and the cable type, with no suffering of sq that I could tell. John is right imo that it is an unnecessary worry to think sound will be affected by either type.
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"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


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#135173 - 04/18/06 08:21 AM Re: Looking for a sub to mate with M3Ti and NAD
emorphien Offline
hobbyist

Registered: 04/09/06
Posts: 28
Loc: Rochester, NY
At this point I know what cables I need, it's just a matter of how I want to arrange the setup.

Unless that high pass filter is male-male (and they aren't) I need two males and one female on the splitter cable. Males for the preamp out and amp in and female for the other RCA cable I'll be using to hook up to the sub.

edit: Unless you are thinking the sub needs a single RCA input. It does not, the X-sub has stereo low-level inputs which should be fine for this.


Edited by emorphien (04/18/06 08:28 AM)
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Axiom M3Ti NAD C320BEE, C542, PP-2, Rega P2 w/ Denon DL110 Grado SR325 HT in the living room

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#135174 - 04/18/06 05:50 PM Re: Looking for a sub to mate with M3Ti and NAD
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6720
Loc: The Peoples Republic of Il.
In reply to:

Unless that high pass filter is male-male (and they aren't) I need two males and one female on the splitter cable. Males for the preamp out and amp in and female for the other RCA cable I'll be using to hook up to the sub.






Look I am just trying to help. I don't know what type of cabling you're thinking about but the way I figure is you need as I stated above.

From the preamp out you run the splitters (two of them) to the left and right with the male ends (like I linked to) from the female ends ,two of them for each splitter, you run the interconnect cable left and right back to the main in on the amp section of the Nad. You can insert the hight pass filters directly to the main in.The other female ends you run left and right sub cables to the amp of the sub.

In reply to:

Unless you are thinking the sub needs a single RCA input. It does not, the X-sub has stereo low-level inputs which should be fine for this.




You need not tell me what the X-Sub needs, I own one.





_________________________
Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


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#135175 - 04/18/06 06:13 PM Re: Looking for a sub to mate with M3Ti and NAD
emorphien Offline
hobbyist

Registered: 04/09/06
Posts: 28
Loc: Rochester, NY
Haha that makes it more confusing. A splitter with two female and one male would work but necessitate more cables. At the moment I'm pondering this setup if I'm feeling goosey.



obviously x2 for both channels
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Axiom M3Ti NAD C320BEE, C542, PP-2, Rega P2 w/ Denon DL110 Grado SR325 HT in the living room

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