Official Power Sound Audio Subwoofer Thread - Page 420 - AVS Forum | Home Theater Discussions And Reviews

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post #12571 of 29859 Old 07-03-2014, 12:18 PM
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Originally Posted by climber07 View Post
If they are stacked and the phase is 180 out, then yes, they are wired out of phase. Pop off the amp and check the wires.
But, do I have to?

Unless it would somehow improve the sound, I'd rather not go mucking about inside the subs.
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post #12572 of 29859 Old 07-03-2014, 12:28 PM
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Originally Posted by Alan P View Post
But, do I have to?

Unless it would somehow improve the sound, I'd rather not go mucking about inside the subs.
It's my OCD... LOL

Being a Marine and a tech, it would drive me absolutely crazy not knowing.

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post #12573 of 29859 Old 07-03-2014, 12:31 PM
 
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Originally Posted by Magibeg View Post
I actually haven't. I'll go buy one (I need another one anyway because I'm moving in about a week). Wouldn't be the first time I've been thwarted by a cable. I could also consider a Y split to plug into both inputs, i doubt it would help but i really want to cover all bases.
don't think its your cable if it works on the other sub..


what is the phase set at.. ? put at 0 or 180...


good luck eh.. did you ask tom?
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post #12574 of 29859 Old 07-03-2014, 12:33 PM
 
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Originally Posted by Alan P View Post
But, do I have to?

Unless it would somehow improve the sound, I'd rather not go mucking about inside the subs.


I have 2 subs going onto a truck soon .. going to be a long wait.. xs15se


is it a good Idea to sit them beside each other to check the phase?


cheers
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post #12575 of 29859 Old 07-03-2014, 12:44 PM
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Wouldn't be a bad idea, but I'm pretty sure my situation is the exception, not the rule.
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post #12576 of 29859 Old 07-03-2014, 12:45 PM
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Originally Posted by climber07 View Post
It's my OCD... LOL

Being a Marine and a tech, it would drive me absolutely crazy not knowing.
Yeah, you're right....I'll probably end up having to open 'em up.
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post #12577 of 29859 Old 07-03-2014, 12:50 PM
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Originally Posted by cableguy301 View Post
don't think its your cable if it works on the other sub..


what is the phase set at.. ? put at 0 or 180...


good luck eh.. did you ask tom?
Tried 0 and 180 for the phase but didn't appear to do anything. Talked to Tom this afternoon. He's a pretty awesome guy so I'm certain a solution will be found. I'm feeling optimistic for tonight!
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post #12578 of 29859 Old 07-03-2014, 01:20 PM
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Magibeg,

After running your Audyssey calibration, did you check to make sure that your other speakers are set to "small"?

When I calibrate my system, my AVR sets my speakers to "large". After completing the calibration, I must go into the menu and change them to "small", otherwise my sub would not receive any re-directed bass from the other channels. This is an entirely separate menu from the crossover settings, so it could be easy to miss.
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post #12579 of 29859 Old 07-03-2014, 01:53 PM
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Quote:
Originally Posted by tboe77 View Post
Magibeg,

After running your Audyssey calibration, did you check to make sure that your other speakers are set to "small"?

When I calibrate my system, my AVR sets my speakers to "large". After completing the calibration, I must go into the menu and change them to "small", otherwise my sub would not receive any re-directed bass from the other channels. This is an entirely separate menu from the crossover settings, so it could be easy to miss.
I actually don't think I have that option but I'll double check with the manual. I recall only having the option to set my speakers to full range and then adjust at 10hz intervals. That could be an option with the Audyssey XT32
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post #12580 of 29859 Old 07-03-2014, 01:53 PM
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I think most of the obvious stuff was sorted out when Magibeg said that he can unhook the XV15 and hook up the PL-200 and have instant bass. That tells me the cable is good and the audyssey settings are close enough. Might be a amp calibration issue.
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post #12581 of 29859 Old 07-03-2014, 01:56 PM
 
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Quote:
Originally Posted by Magibeg View Post
I actually don't think I have that option but I'll double check with the manual. I recall only having the option to set my speakers to full range and then adjust at 10hz intervals. That could be an option with the Audyssey XT32


yeah you need the speaker to be small.. even if they are large...


still would be lfe content to the sub tho...


cheers..
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post #12582 of 29859 Old 07-03-2014, 02:00 PM
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Quote:
Originally Posted by cableguy301 View Post
yeah you need the speaker to be small.. even if they are large...


still would be lfe content to the sub tho...


cheers..
Unfortunately they're not set to full range though, just the option is there. Choices for me and my limited version of audyssey are from full range to 120hz cross over i believe (with mine being set to 80hz).

edit - Checked my manual

"
Speaker Configuration
With these settings, you can specify which speakers are connected and a crossover frequency for each speaker. The following crossover frequencies can be specified: “Full Band”, “40Hz”, “50Hz”, “60Hz”, “70Hz”, “80Hz(THX)”, “90Hz”, “100Hz”, “120Hz”, “150Hz”, or “200Hz”. Specify “Full Band” for speakers that can output low frequency bass sounds adequately, for example, speakers with a good sized woofer. For smaller speakers, specify a crossover frequency."

Last edited by Magibeg; 07-03-2014 at 02:04 PM.
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post #12583 of 29859 Old 07-03-2014, 02:19 PM
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Yeah, on your AVR if it's set to anything other than "Full Band" they are set to "small". You got it right.
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post #12584 of 29859 Old 07-03-2014, 02:33 PM
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Well I stopped by PSA this morning met Jim and exchanged my old drive units for the SE version. I didn't have a lot of time to stick around and met Tom but in the end it was nice to see the shop and check things out. I saw some interesting things while I was there...anyhow....I can't wait to get home and set up my XS30 with the new drivers...I didn't want to waste to much of Jim's time but I now see why he is called him the "quiet one"...lol.

I'll post some pics once we arrived home...this trip certainly had its bumps...but going from home to Boston with a stopover at friends in Longmeadow, MA then Fenway, Baltimore and finally Pittsburgh. Today we drove to Grove City for some shopping and Mineral Ridge OH...I'm beat. I'll take a cab this evenings game at PNC park....I estimate we've travelled about 2500 km so far and leaving for home tomorrow AM.

I hope you all have a great July 4th long weekend....

All the best...


Ps: This note is for Raynist...we checked out the Thai food place on Western Av and it was legit!!

Thanks again for the suggestion...


Bill....
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post #12585 of 29859 Old 07-03-2014, 04:31 PM
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Quote:
Originally Posted by Billy p View Post
Well I stopped by PSA this morning met Jim and exchanged my old drive units for the SE version. I didn't have a lot of time to stick around and met Tom but in the end it was nice to see the shop and check things out. I saw some interesting things while I was there...anyhow....I can't wait to get home and set up my XS30 with the new drivers...I didn't want to waste to much of Jim's time but I now see why he is called him the "quiet one"...lol.

I'll post some pics once we arrived home...this trip certainly had its bumps...but going from home to Boston with a stopover at friends in Longmeadow, MA then Fenway, Baltimore and finally Pittsburgh. Today we drove to Grove City for some shopping and Mineral Ridge OH...I'm beat. I'll take a cab this evenings game at PNC park....I estimate we've travelled about 2500 km so far and leaving for home tomorrow AM.

I hope you all have a great July 4th long weekend....

All the best...


Ps: This note is for Raynist...we checked out the Thai food place on Western Av and it was legit!!

Thanks again for the suggestion...


Bill....
Great!

I just ate there for lunch yesterday.

Enjoy the game tonight!! Let's go bucs!!
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post #12586 of 29859 Old 07-03-2014, 05:08 PM
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. I saw some interesting things while I was there...anyhow....
Oh? Can you please explain these interesting little things in great full length detail

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post #12587 of 29859 Old 07-03-2014, 05:36 PM
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Karen what brand is your ET center and where did you get? How much ?
Thank you so much
Cheers Jeffrey
I had the ET unit made to order at a local furniture manufacturer cost me about $800, however I'm in Australia so that's probably of no help to you.

Cheers, Karen
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post #12588 of 29859 Old 07-03-2014, 05:39 PM
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How do you like your mini split?

I wired one for my theater, however I won't be able to install it till last. Do you notice any noise that affects your audio? I really have no choice but to add a mini split as it will be very hard to run an AC line to my room. I actually like the idea of the unit as I can use it when needed. Also, how does the heat pump work? I have seen units on you tube that put out heat in -12 below 0.
The split a/c works quite well, I don't have any noticeable noise affecting the audio, but I only use it in summer for cooling, I have ducted gas heating for winter.
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post #12589 of 29859 Old 07-03-2014, 05:41 PM
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Well, it appears the amp on one of my xv15se's is dead... Tom helped me troubleshoot and they will be shipping one out ASAP (likely Saturday due to holiday tomorrow). Tom is great to deal with. Must say even with this hiccup I'm really impressed with their company and products.

This leads me to a question for all you experts out there. It occurred to me that instead of sitting around being grumpy about this situation, I can drag my outlaw lfm1-ex out of the bedroom and hook it up in the main room. I will for sure do 1 v 1 testing, but I am wondering, how would it mix with my other xv15se?

Any thoughts?
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post #12590 of 29859 Old 07-03-2014, 05:41 PM
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Nice setup! Narly cat tree you got there.
Thanks.

Yep the cats love it.
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post #12591 of 29859 Old 07-03-2014, 07:40 PM
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Good news!

I talked to Tom and did some trouble shooting tonight and my XV15se is now pounding away properly. So as it turns out, my receiver and the sub didn't seem to play nicely with each other, however once we added a Y cable and plugged into both inputs the sub promptly blew my face off.

Without the Y cable i was able to run near max gain with +4dB hot on the receiver and it barely made a whimper, now with the Y cable I'm running -7.5dB at about 1:30 gain. I now understand why some of you were going so crazy when I was running this sub hot. If it was working properly it might have taken down the house!

So compared to my PL-200 now.... much much more powerful. It packs an incredible punch but remarkably is still less "boomy". Watched pieces of a couple of movies and you can really feel the force move through you. When I threw on some music it had the ability to be tight and musical still.

Very very happy! I can barely imagine what it must be like to have 2.. or more of them!
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Last edited by Magibeg; 07-03-2014 at 07:48 PM.
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post #12592 of 29859 Old 07-03-2014, 08:17 PM
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Originally Posted by Magibeg View Post
Good news!

I talked to Tom and did some trouble shooting tonight and my XV15se is now pounding away properly.... once we added a Y cable and plugged into both inputs the sub promptly blew my face off.
Nice! lol
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post #12593 of 29859 Old 07-03-2014, 08:25 PM
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Originally Posted by Magibeg View Post
Good news!
Very very happy! I can barely imagine what it must be like to have 2.. or more of them!
Glad you got it up and running brother.

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post #12594 of 29859 Old 07-03-2014, 09:51 PM
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I can barely imagine what it must be like to have 2.. or more of them!
oh, trust me...you will know soon enough when that bug bites you again!
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post #12595 of 29859 Old 07-04-2014, 07:26 AM
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Yep, start off with one, then two and three. Now you will keep wondering how would a 4th sound
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oh, trust me...you will know soon enough when that bug bites you again!

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post #12596 of 29859 Old 07-04-2014, 08:44 AM
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i have had the same experience with mine, i guess its ok to use a y connector. the manual says to just plug in left/lfe. what gives..
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post #12597 of 29859 Old 07-04-2014, 09:28 AM
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i have had the same experience with mine, i guess its ok to use a y connector. the manual says to just plug in left/lfe. what gives..
The "Y" splitter is recommended when the auto power on feature doesn't power the subwoofer on. Some AVR may output a lower level LFE signal (especially when calibrating) preventing the sub amp from powering on. My old JBL was like that.

INPUTS
The subwoofer INPUTS consist of LEFT/LFE and RIGHT RCA
jacks. You only need to use the LEFT/LFE connection if you are
using a receiver or processor with an LFE or subwoofer output.
You can use a Y-connector on the subwoofer if it doesn’t power
up in AUTO mode at low levels. (Please make sure to recalibrate
if you use a Y-connector.)

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post #12598 of 29859 Old 07-04-2014, 10:50 AM
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Quote:
Originally Posted by climber07 View Post
The "Y" splitter is recommended when the auto power on feature doesn't power the subwoofer on. Some AVR may output a lower level LFE signal (especially when calibrating) preventing the sub amp from powering on. My old JBL was like that.

INPUTS
The subwoofer INPUTS consist of LEFT/LFE and RIGHT RCA
jacks. You only need to use the LEFT/LFE connection if you are
using a receiver or processor with an LFE or subwoofer output.
You can use a Y-connector on the subwoofer if it doesn’t power
up in AUTO mode at low levels. (Please make sure to recalibrate
if you use a Y-connector.)
The interesting thing with my experience was that the amp WAS powering on. Unfortunately though the signal must have been very weak, enough to turn it on, but not enough to give any meaningful LFE experience. It still doesn't calibrate properly on the first pass of Audyssey which makes me think that down the road when I get a better receiver I might get the unexpected benefit of slightly more bass.
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post #12599 of 29859 Old 07-04-2014, 11:27 AM
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Glad you got it sorted, Magibeg. How's your face?!?! (That comment gave me a good laugh!)

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post #12600 of 29859 Old 07-04-2014, 11:33 AM
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Quote:
Originally Posted by leadliner View Post
i have had the same experience with mine, i guess its ok to use a y connector. the manual says to just plug in left/lfe. what gives..
It is always okay to use a Y and hit both inputs on the sub. However it is usually not required to achieve maximum performance. In most cases using a Y split will double the input voltage as both inputs still receive the same voltage but it is summed before the amplification stage.

The variables here are,

1)The output voltage from the receiver's sub out RCA jack (and how this varies with both master volume and bass level control changes)

2)The input sensitivity of the subwoofer jack(which is controlled by the GAIN control on the sub---remember, the gain control is not a volume control)

3)The input impedance of the subwoofer jack(and how it relates to the impedance of the subwoofer output jack on the receiver).

In about 499 cases out of 500(estimate of course), a single mono cable to either input will provide all the "gain" needed to push our products to their full potential. A few times a year we'll run into one of these cases where something in the gain structure chain just isn't allowing the subwoofer to "see" enough input voltage to reach its performance capabilities.

I would say, as a rule of thumb, if you need to have our gain control set any higher than the "3 o;clock" positioning on the dial....try an inexpensive Y cable.

Tom V.
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