Official SVS Owners/Support Thread. - Page 638 - AVS Forum
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post #19111 of 19125 Old Today, 04:39 AM
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2 out of the 4 subs I got from svs have had the same problem (hooked up backwards inside). Im really surprised to hear they are still having this QC problem.

I bet some of the svs owners out there have subs that are hooked up wrong inside and they don't even know it. Svs really needs to get this issue fixed. + and - are not that hard if the builder cares even a little about what he's doing.

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post #19112 of 19125 Old Today, 07:13 AM
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Quote:
Originally Posted by Reference_head View Post
2 out of the 4 subs I have got from svs have had the same problem (hooked up backwards inside). Im really surprised to hear they are still having this QC problem.

I bet some of the svs owners or there have subs that are hooked up wrong and they don't even know it. Svs really needs to get this issue fixed. + and - are not that hard if the builder cares even a little about what he's doing.
When they are paid $3/day I Guess they don't care all that much.
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post #19113 of 19125 Old Today, 08:27 AM
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Quote:
Originally Posted by Reference_head View Post
2 out of the 4 subs I have got from svs have had the same problem (hooked up backwards inside). Im really surprised to hear they are still having this QC problem.

I bet some of the svs owners or there have subs that are hooked up wrong and they don't even know it. Svs really needs to get this issue fixed. + and - are not that hard if the builder cares even a little about what he's doing.
Well, they are built in China. Not sure if they check for the correct polarity or test phase as a part of QC.
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post #19114 of 19125 Old Today, 03:14 PM
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I did not know that . I might get bashed here but I will never understand why a US company would take jobs away and send them to another country. You would think at some point making more money just wouldn't be worth it. Sure lots of places do it I know. And the subs would cost more I get that too. But mostly it would be the rich gets a little less rich.

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post #19115 of 19125 Old Today, 03:49 PM
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Consumers are causing the problem. I am with you, I would rather pay more for a product made in the good ole' USA but I feel I am definitely in the minority.

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post #19116 of 19125 Old Today, 03:54 PM
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Quote:
Originally Posted by Mongo171 View Post
Well, they are built in China. Not sure if they check for the correct polarity or test phase as a part of QC.
They're not assembled in the USA? SVS does not test them here before they ship them out?
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post #19117 of 19125 Unread Today, 03:59 PM
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Built in Hong Kong, P.R.C. The subs are designed here. Built for pennies on the dollar. Shipped on the slow boat from China. Not sure if they are QC'd here.
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post #19118 of 19125 Unread Today, 04:21 PM
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Consumers are causing the problem. I am with you, I would rather pay more for a product made in the good ole' USA but I feel I am definitely in the minority.

The vast majority of consumers buy on price alone.


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post #19119 of 19125 Unread Today, 04:48 PM
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Many consumer electronics are made in China, it just seems like something like a crossed wire in a sub happens more frequently than it should around here, I.M.O.
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post #19120 of 19125 Unread Today, 06:40 PM
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Svs would have to cut into their profits. And I'm sure some rich people would be a little less rich. I mean there must have been a time when they built everything here (like when they were smaller staring out maybe?). And at some point they sent the jobs out for more money.


Im not trying to put all the blame on svs. Tons of places do this. I just didn't see svs as one that would trade more money for sending jobs over seas. Its just not the image I had of them. Oh well it is what it is

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post #19121 of 19125 Unread Today, 06:44 PM
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Well, OPPO is a Chinese company.

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post #19122 of 19125 Unread Today, 07:12 PM
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Quote:
Originally Posted by Mongo171 View Post
Well, OPPO is a Chinese company.
Like I said, many electronics are made overseas. I think back when SVS was still selling woodgrain subs those were assembled here but the internals were assembled elsewhere. It just becomes an economy of scale to keep costs lower, if they were all made here then the price would rise.
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post #19123 of 19125 Unread Today, 07:14 PM
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Well it is trend what it is now around world, just because it is build in China doesnt mean quality is bad. There is no garanties if subs will be build in US it will be better. Problem is final quality control and testing what SVS have, it is like cloth on cylinder subs many have issues.

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post #19124 of 19125 Unread Today, 07:19 PM
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The Sledge amps are from a separate company who makes the amps and puts on the SVS nomenclature.

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post #19125 of 19125 Unread Today, 07:39 PM
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Originally Posted by mantaraydesign View Post
My subs was making the rattling sounds from the 12" drivers. SVS told me one of the sub was connected incorrectly internally. I had to opened the sub apart and switched the Red and the Black cable. That was it.
But wasn't that a long time ago? I do remember you had that problem maybe what, 1 year ago or so? Not able to go above like -15 dB from ref on Undeworld: Awakening without distorting your dual Pluses if I remember correctly. I even checked on my own setup and made a movie of what the driver looked like above ref to compare

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Here is a question I have about the PB-12 Plus. When you plug all 3 port holes (Sealed Mode), what is the lowest signal it can produce? In Sealed Mode, can the PB-12 Plus go down to 16 Hz or more?
Yes -- but it's more room-dependent. When the sub is sealed, the roll-off at low frequencies is shallower that for ported subs, with a slope of 12 dB/octave. Combine that with room gain, which can pick up what's left of the signal and you can have significant output lower than a ported sub, but probably not as much output.

On a ported sub, the port resonance adds lots of output around the tuning frequency. But below that frequency, the roll-off is twice as fast as for sealed sub, at 24 dB/octave. Furthermore, since the sub enclosure is in effect "open" at frequencies below tuning, the driver doesn't see any resistance from the enclosure -- the enclosure is then said to be "unloaded". To protect the driver against extreme excursions, a rumble filter is applied on the input. It's basically a high-pass filter with a cut-off a bit below tuning (e.g. 13 Hz for the 16 Hz tuning mode on the Plus and Ultra models). This filter further cuts the frequencies below tuning so that there's very little remaining below tuning.

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Originally Posted by Bond 007 View Post
They're not assembled in the USA? SVS does not test them here before they ship them out?
I think they QC the subs in the US but checking for polarity may not be part of their tests. You'd have to hook them to a mic'ed rig to detect the polarity inversion -- it's not something you can hear, unless you're running dual subs with opposite polarities.

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