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Official SVS Owners/Support Thread. - Page 395

post #11821 of 15593
You should buy it from AV Science. They have great prices.
post #11822 of 15593
Quote:
Originally Posted by teckademic View Post

discount? Do you have to return within a certain time frame to get this discount?

Nope. Just be a return customer.
post #11823 of 15593
Quote:
Originally Posted by Sweetmeat View Post

You should buy it from AV Science. They have great prices.

+1
post #11824 of 15593
Quote:
Originally Posted by teckademic View Post

discount? Do you have to return within a certain time frame to get this discount?

No. I was offered the return customer discount; my last SVS purchase was a 16-46PC+ I bought new over 10 years ago (it's still going strong). smile.gif
post #11825 of 15593
I currently have to two pb-10s up front and pb-1000 behind the couch that works exceptionally well with low lfe content, but I have my speakers crossed over at 100hz and was wondering if I could manually turn down the pb-1000's crossover to something lower so that it doesn't play the upper frequencies to avoid localizing the sub behind the couch? Does that sound like something that could work?
post #11826 of 15593
Quote:
I bought a PC13 Ultra a few months back, and always felt my room still lacked bass in certain areas no matter where I placed the sub. So, I moved my old PCI 20-39 sub into the home theater room to test dual subs for the first time. This room is only 10x15ft, but it has a doorway that opens into a larger room. I still figured a single PC13 Ultra would be complete overkill for such a small room. I was wrong. I've been turning the much weaker PCI 20-39 on/off and listening to the same scenes. I ensured both subs are outputting at 75DB. The differences is incredible. There seems to be so much more depth in everything I watch.

I'm really debating grabbing a second PC13 Ultra. Can someone call me crazy so I don't end up putting damn near $3000 in subs in a 10x15ft room.

I'm glad you figured out what was wrong with your PC13 Ultra. I can't believe you have 2 cylinders in a room that small and don't have head splitting bass. I have one 20 - 39 pci cylinder in a 23' x 17' x 11' tall ( peaked ceiling ) room. My room is more or less closed though, and the cylinder is in a corner. It can vibrate the room. Watched the 2nd episode of The Pacific last night - you could easily feel the mortar blasts and the palm trees falling.....................

Decided to get a 2nd sub though anyway, just because I can. SVS recommended the SB1000, since I'm not exactly lacking LFE currently. Should be here in a couple of days !! smile.gif
post #11827 of 15593
Quote:
Originally Posted by Sweetmeat View Post

You should buy it from AV Science. They have great prices.

+2
post #11828 of 15593
New owner here I just got my svs pb12+ with the bash amp and I didn't know what I was missing I have been hearing boomy bass with my previous subs, I love this new high end bass, so low and feels and sounds great , I have this beast in a bedroom lol
post #11829 of 15593
I have this beast in a bedroom lol

That you do! Try to replicate the 12+ over in DIY with a 12” driver. rolleyes.gif Congrats!
post #11830 of 15593
Are they really trying to replicate this sub in the DIY ??
post #11831 of 15593
Quote:
Originally Posted by dave00gt View Post

Are they really trying to replicate this sub in the DIY ??

Lol.. No most of them go for 18” 21 or 24” drivers in a large enclosure and such, or the use of more drivers. What I was trying to get across is the 12+ is a very nice SW that if one were to try to replicate with a 12” driver would be a very respectable build imo. What SVS does with a 12” some can’t/don’t do with a 15” or even a 18” for that matter. You have a great sub. Add 4-5dB to the PB12-NSD numbers over at Data http://www.data-bass.com/systems and that might give you a idea of what I’m talking about.
post #11832 of 15593
Oh ok lol thanks I'll check it out
post #11833 of 15593
Quote:
Originally Posted by dave00gt View Post

Oh ok lol thanks I'll check it out

You can go to the measurement tab and select another sub to compare the NSD to and then look a the graph, just be sure to add 4-5dB to the PB12-NSD numbers to get a idea of the 12+ you have, oh and be sure you click on the PB-NSD and not the SB-NSD. wink.gif Spl isn’t everything, but it’s a good indicator we use quite a bit.
post #11834 of 15593
Quote:
Originally Posted by teckademic View Post

I currently have to two pb-10s up front and pb-1000 behind the couch that works exceptionally well with low lfe content, but I have my speakers crossed over at 100hz and was wondering if I could manually turn down the pb-1000's crossover to something lower so that it doesn't play the upper frequencies to avoid localizing the sub behind the couch? Does that sound like something that could work?

It's easy enough to try! Report back in any case ...

But it may lead to a dip in the combined frequency response of the three subs where you reduced the crossover for the third one. If you have enough headroom, this can be corrected through EQing (via Audyssey or an external solution).
post #11835 of 15593
Quote:
Originally Posted by steve nn View Post

Add 4-5dB to the PB12-NSD numbers over at Data http://www.data-bass.com/systems and that might give you a idea of what I’m talking about.

Even easier:

PB12-NSD:



PB12-Plus DSP:



In the numbers that we see, we add to the plus 4 to 6 dB depending on the frequency. rolleyes.gif
post #11836 of 15593
I just posted ... There 7db more, depending on frequency.
post #11837 of 15593
That's good right ?? Lol I don't know and wzup with roll eyes emoticons?
post #11838 of 15593
Lecter: dave got a BASH amp PB12-Plus, not the Sledge DSP one.

In any way, yeah dave, quite good biggrin.gif

If you're new around, here's a quick tip. When two noises sources are not correlated (e.g. they play different sounds) but they're the same loudness, the total added loudness will be +3 dB. When they're correlated (i.e. they play the same thing *and* they're placed really close to each other), then it's +6 dB. To the ear though, twice as loud is about +10 dB.
post #11839 of 15593
Quote:
Originally Posted by neutro View Post

Lecter: dave got a BASH amp PB12-Plus, not the Sledge DSP one.

Upss! biggrin.gif You have reason, for some reason did not see the word "bash". Thanks for the correction.
post #11840 of 15593
Oh yhea, he he
post #11841 of 15593
Quote:
Originally Posted by neutro View Post

Lecter: dave got a BASH amp PB12-Plus, not the Sledge DSP one.

In any way, yeah dave, quite good biggrin.gif

If you're new around, here's a quick tip. When two noises sources are not correlated (.g. they play different sounds) but they're the same loudness, the total added loudness will be +3 dB. When they're correlated (i.e. they play the same thing *and* they're placed really close to each other), then it's +6 dB. To the ear though, twice as loud is about +10 dB.

I know this has been heavily debated, but from some the research I have done, a +6db gain in bass below 100hz is percieved to be twice as loud...where as a +10db gain in the upper frequency range is percieved to be twice as loud. I think this gets confused alot on the internet. I will try to find the links where I found this info and post them.

Also when two identical subwoofers are co-coupled they produce a +6db gain....when placed outside of a 1/4 wavelength in distance or non co-coupled, the gain can vary from 3-5db at the LP. However any time displacement is doubled while maintaining the same voltage swing, a full +6db gain is added to the room, but it may or may not be present at the LP depending on placement.
post #11842 of 15593
Thanks basshead for the correction -- I was merely quoting the cliché for the +10 dB part. The +3 and +6 dB parts are pure physics. Well, maths, more precisely. +3 dB (actually +3.01 dB) is a factor sqrt(2) in amplitude, i.e. RMS addition of two noise sources. +6 dB (actually +6.02 dB) is perfect addition of two identical waveforms, i.e. a factor of 2 in amplitude. Thus it is totally agreed that to get +6 dB from two subs they have to be identical and co-coupled as you say. Else they will provide between +3 and +6 dB depending on their position and the room.
post #11843 of 15593
Quote:
That's good right ?? Lol I don't know and wzup with roll eyes emoticons?

That’s a good question? How about filling me in Lector? cool.gif
post #11844 of 15593
Quote:
Originally Posted by dave00gt View Post

That's good right ?? Lol I don't know and wzup with roll eyes emoticons?

It's great.

The PB12 + "bash" will be much more muscular and will have more reserves when the uphill.
post #11845 of 15593
Quote:
Else they will provide between +3 and +6 dB depending on their position and the room.

I have always thought that but that might be a general statement?? It seems I came across a post by Bill F stating at certain freq it can actually be more. Now I’m not saying it can be by any measure, but it does seem Bill posted that correcting me, or someone else once?? I don’t know the physics involved.
post #11846 of 15593
One thing I was told by an svs rep that the new model with the sledge amp is better by 2-3 db , just saying cause all this db talk
post #11847 of 15593
Quote:
Originally Posted by dave00gt View Post

One thing I was told by an svs rep that the new model with the sledge amp is better by 2-3 db , just saying cause all this db talk

Yeah I just asked Ed/rep about the plus just the other day and he informed me 4-5 dB. It’s good to get the rest of the story. I was trying to be sure when I posted regarding.. although I was right, in a way that was by accident. Anyway you still have a great sub. I would kick back and enjoy smile.gif
post #11848 of 15593
I will thanks a bunch it's nice to be in this group
post #11849 of 15593
Quick question about setting up the Dual subwoofers.

I am using the SPL sound meter for measurement. Do you set EACH subwoofer to 75dB or BOTH subwoofer together at 75dB?

Right now, the Volume on the subwoofer is -16dB for the LEFT and RIGHT subwoofer. Then I use the SPL sound meter to set BOTH subs at 75dB with the Volume Sub Level with the receiver.

Or should I set the subwoofer Volume on BOTH subs to 0dB, and then set the Volume Sub Level on the receiver to 75dB?

Talk about confusing right? lol
post #11850 of 15593
I set each sub to around 72db using their gain knob with the sub trim at 0. Then set them together to 75 using the sub trim
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