Official Power Sound Audio Subwoofer Thread - Page 1895 - AVS Forum | Home Theater Discussions And Reviews
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post #56821 of 57533 Old 05-31-2020, 10:29 PM
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Quote:
Originally Posted by rhelliott2 View Post
That's easy Play EOT at reference lol
if i remember correctly the test tones in that intro start at 30hz and drop down to 10hz in increments of 5hz five times.

@badtlc this is by far easier to use and you can pick any frequency your heart desires: https://www.szynalski.com/tone-generator/


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post #56822 of 57533 Old 06-01-2020, 05:24 AM
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I’m still hoping to upgrade to the Neo “sound” but I’m more budget constrained so I’m hoping the Chinese cabinet options will be my answer!
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post #56823 of 57533 Old 06-01-2020, 05:40 AM
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Quote:
Originally Posted by rhelliott2 View Post
That's easy Play EOT at reference lol

What does EoT stand for?

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post #56824 of 57533 Old 06-01-2020, 05:45 AM
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Originally Posted by badtlc View Post
What does EoT stand for?
Edge of Tomorrow the movie also known as Live, Die, Repeat. Stars Tom Cruise and Emily Blunt.

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post #56825 of 57533 Old 06-01-2020, 05:51 AM
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I wouldn't crank your system to reference and play the EOT intro without knowing your sub(s) capabilities prior.
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post #56826 of 57533 Old 06-01-2020, 05:54 AM
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Originally Posted by basshead81 View Post
I wouldn't crank your system to reference and play the EOT intro without knowing your sub(s) capabilities prior.

I agree.

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post #56827 of 57533 Old 06-01-2020, 08:41 AM
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Originally Posted by basshead81 View Post
I wouldn't crank your system to reference and play the EOT intro without knowing your sub(s) capabilities prior.
Don’t all PSA subs have built in protection?

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post #56828 of 57533 Old 06-01-2020, 09:07 AM
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Originally Posted by mnc View Post
Don’t all PSA subs have built in protection?
Yes most subs have some form of limiting. I still recommend having a idea of your systems limits before going HAM and playing test tone sweeps at a level that might be much higher then your sub is capable of. There is a good chance the Subs protection circuits will save it, but I believe you can still damage a PSA sub playing with test tones if the levels are above the subs limits. Tom mentioned it a few years back and said that playing this type of stuff can void the warranty as well.
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post #56829 of 57533 Old 06-01-2020, 09:10 AM
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Originally Posted by mnc View Post
Don’t all PSA subs have built in protection?

Define "protection"..

Protection could be a single 50 cent resistor used in a highpass circuit in many non dsp enabled products for example.

Specifically, in this neck of the woods....people discussing sine waves at port tunes and craziness like that...there's not much you can do for bullet proof protection. This is absolute worst case scenario for a voice coil. Max heating, minimum cooling(cooling is dependent on VC movement---at tune there is minimal movement unless the system is unusually lossy).

You can either incorporate something unusual and fairly complex like a temperature monitoring circuit on the VC.

Another option, albeit a very expensive one, is to use woofers with a motor design so over-built that they can handle an extraordinary amount of continuous power---even at "port tune".

At the end of the day, as noted, these "tests" should be avoided or at least limited to short duration.

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post #56830 of 57533 Old 06-01-2020, 09:59 AM
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Quote:
Originally Posted by Tom Vodhanel View Post
Define "protection"..

Protection could be a single 50 cent resistor used in a highpass circuit in many non dsp enabled products for example.

Specifically, in this neck of the woods....people discussing sine waves at port tunes and craziness like that...there's not much you can do for bullet proof protection. This is absolute worst case scenario for a voice coil. Max heating, minimum cooling(cooling is dependent on VC movement---at tune there is minimal movement unless the system is unusually lossy).

You can either incorporate something unusual and fairly complex like a temperature monitoring circuit on the VC.

Another option, albeit a very expensive one, is to use woofers with a motor design so over-built that they can handle an extraordinary amount of continuous power---even at "port tune".

At the end of the day, as noted, these "tests" should be avoided or at least limited to short duration.

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So are sealed subs more protected than ported?

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post #56831 of 57533 Old 06-01-2020, 10:04 AM
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Originally Posted by badtlc View Post
I agree.
Good idea.

dont do what this guy did.

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post #56832 of 57533 Old 06-01-2020, 10:04 AM
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Quote:
Originally Posted by Tom Vodhanel View Post
Specifically, in this neck of the woods....people discussing sine waves at port tunes and craziness like that
Do you read this thread with your head in your hands thinking "what are they trying to do to my subs!"

Last edited by Conrad Nash; 06-01-2020 at 11:44 AM.
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post #56833 of 57533 Old 06-01-2020, 10:41 AM
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Originally Posted by rhelliott2 View Post
Dude... I just can't! I can't even... Seriously, WTF!?!


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post #56834 of 57533 Old 06-01-2020, 10:46 AM
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Dude... I just can't! I can't even... Seriously, WTF!?!
Yeah like WTF playing a sine wave for THAT long will burn the VC.
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post #56835 of 57533 Old 06-01-2020, 10:48 AM
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Originally Posted by Conrad Nash View Post
Do you read this thread with your head in your hands thinking "what are they trying to do do to my subs!"
I don't know if he did but I can tell you I've been reading some posts and shaking my head wondering what people are trying to do. I thought it was common knowledge if you want to kill a sub, any sub... play sine waves at loud volumes. I know it can be done for short durations but why take the risk? And how long is "short"?

Basshead gave some good advice a few posts back, don't go crazy before you understand what you're doing and what your subs can handle.

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post #56836 of 57533 Old 06-01-2020, 11:41 AM
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Originally Posted by Hopinater View Post
I don't know if he did but I can tell you I've been reading some posts and shaking my head wondering what people are trying to do. I thought it was common knowledge if you want to kill a sub, any sub... play sine waves at loud volumes. I know it can be done for short durations but why take the risk? And how long is "short"?

Basshead gave some good advice a few posts back, don't go crazy before you understand what you're doing and what your subs can handle.



I don't know how short is short but when I'm goofing off testing different things with pure sine waves I won't typically do it more than about 5 seconds and I usually keep it to a very low volume.

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post #56837 of 57533 Old 06-01-2020, 12:10 PM
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Originally Posted by badtlc View Post
I don't know how short is short but when I'm goofing off testing different things with pure sine waves I won't typically do it more than about 5 seconds and I usually keep it to a very low volume.
Yep, that should be fine.

LOL... when I watched that video posted above I actually felt my self getting more and more nervous as he kept turning the volume up. He literally cooked that subwoofer, and I bet there may be damage to the others as well.

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post #56838 of 57533 Old 06-01-2020, 12:34 PM
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Originally Posted by basshead81 View Post
I wouldn't crank your system to reference and play the EOT intro without knowing your sub(s) capabilities prior.
Talked my into it! Ordered the blu ray.

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post #56839 of 57533 Old 06-01-2020, 02:52 PM
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Originally Posted by badtlc View Post
What does EoT stand for?
www.youtube.com/watch?v=AZynRC-2Wp0


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post #56840 of 57533 Old 06-01-2020, 02:58 PM
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Originally Posted by mnc View Post
So are sealed subs more protected than ported?
It depends. Even with the VC moving, sealed = interior heat build up. And the you have VC movement varying with frequency as well.

I've been trying to talk Bennett into testing their coils in Mt. Vesuvius. I mean, it's right there.

Maybe we'll soon see a new AES standardization...

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post #56841 of 57533 Old 06-01-2020, 03:05 PM
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tv18ipal_r3

S2410(first poc)

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post #56842 of 57533 Old 06-01-2020, 05:41 PM
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tv18ipal_r3

S2410(first poc)

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Me likey👍 Can’t wait for the pair to come.
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post #56843 of 57533 Old 06-01-2020, 06:50 PM
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Originally Posted by Tom Vodhanel View Post
tv18ipal_r3

S2410(first poc)

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Multiple typos or something new and special?
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post #56844 of 57533 Old 06-01-2020, 07:04 PM
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Multiple typos or something new and special?
Sealed 2x12" dual opposed "proof of concept"?

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post #56845 of 57533 Old 06-01-2020, 07:27 PM
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Pretty sure the S2410 is in the 3rd pic unfinished next to the TV18's.
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post #56846 of 57533 Old 06-01-2020, 08:45 PM
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Sealed 2x12" dual opposed "proof of concept"?
IIRC it had a Passive radiator.
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post #56847 of 57533 Old 06-01-2020, 09:18 PM
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You got me Tom, was looking all over for the sealed SI 24” driver, little 12” is a little too small for my current needs, but I know a guy


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post #56848 of 57533 Old 06-01-2020, 10:27 PM
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IIRC it had a Passive radiator.
Passive radiator is a Vented alignment.
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post #56849 of 57533 Old 06-02-2020, 05:25 PM
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I just ordered a TV3612 that I’m going to pair with my V3600I! I’m ready to make my theater seat float!

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post #56850 of 57533 Old 06-02-2020, 06:04 PM
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I just ordered a TV3612 that I’m going to pair with my V3600I! I’m ready to make my theater seat float!
Congratulations! They will make an awesome pair!
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