AVS › AVS Forum › Audio › Subwoofers, Bass, and Transducers › Official SVS Owners/Support Thread.
New Posts  All Forums:Forum Nav:

Official SVS Owners/Support Thread. - Page 98

post #2911 of 10835
Quote:
Originally Posted by lalakersfan34 View Post

I'd personally recommend purchasing the best sub(s) you can afford. I have two PB10's in a room smaller than yours and they do a great job. However, I started with one and ended up adding a second later because I found one to be a little lacking in output. Don't get me wrong, a single PB10 was pretty visceral but since I like to watch movies and listen to music pretty loud, I could tell it was running into dynamic compression when I pushed it hard. Adding a second alleviated that issue.

You've mentioned that you don't necessarily want to listen really loud, but -10 from reference on WOTW is quite loud. WOTW is an extremely hot soundtrack with insane LFE. Some of the material on that disc is also unfortunately right at the limit of the extension of my PB10's. In my room they give me very strong output to about 16hz. The lightening strike and pods emerging scenes both have a lot of energy in the 15-20hz range, and while my PB10's do an admirable job, a larger sub like the PB12 Plus would probably do better. However, above 20hz, my dual PB10's actually have more output than a PB12 Plus (according to Ed Mullen). If you must have strong output way down deep (say 15hz or even a bit lower) the PB10 won't cut it. Keep in mind that very few movies and virtually no music contain bass that deep. The PB10 does a great job on 99% of bass out there;

Since you're considering a single PB10 vs. a PB12 Plus, I'd have to assume the Plus would produce a much more visceral, powerful experience, and since the Plus woofers are better than the NSD, you'd likely get slightly better sound quality as well. Assuming you can just have a single sub and you only consider purchasing a PB12 Plus or a PB10 I'd go with the PB12 Plus without thinking twice. However if it's between dual PB10's, a PB12-NSD, or PB12 Plus, the decision becomes much more difficult.

If you're forced to have only one sub, I'd go with either the PB12-NSD or PB12 Plus. These two will give more output than the PB10, as well as digging a little deeper and having more headroom. Cost-no-object the PB12 Plus is obviously the best choice, but if you need to be a little budget conscious, the PB12-NSD is a potent sub that will likely offer much of the PB12 Plus's performance for a lot less money. I'd recommend e-mailing or calling SVS if you haven't already to get their input as well. Best of luck, and keep us posted on your decision .

I would the PB10 give at -10dlb on WOTW. I've never had it up and it was too loud. I usually listen in the -17 > -22dbl depending on how hot the track is.
post #2912 of 10835
Should I enable or disable the crossover? To me it sounds like I get more thump out of the sub with it disabled. My receiver tells me to set my speaker crossover to 80hz and max out my crossover on the sub. I'm confused and laughing about it...Also, what is the best/safe level for the gain dial on the PB12-nsd. Right now im at 2/3 maxed or just on the middle.
post #2913 of 10835
Quote:
Originally Posted by yashiro81 View Post

Should I enable or disable the crossover? To me it sounds like I get more thump out of the sub with it disabled. My receiver tells me to est my speaker crossover to 80hz and max out my crossover on the speaker. I'm confused and laughing about it...Also, what is the best/safe level for the gain dial on the PB12-nsd. Right now I'm at 2/3 maxed or just on the middle.

Some subs don't have a crossover disable switch, so you have to set it at the highest setting and set your AVR to 80Hz, which should be well below the subs crossover. Since the PB12 has a crossover disable switch, it doesn't matter where you set the dial.

On the gain, I wouldn't go any higher than 1/2 way. I have mine set to about 1/4 way up (9:00 position). Use the AVR to set the correct and balanced level.
post #2914 of 10835
So, enable crossover switch to max(granted speakers are all set to small and 80hz) OR disable(speakers are all set to small and 80hz). Which one is a better setting overall?
post #2915 of 10835
Quote:
Originally Posted by yashiro81 View Post

So, enable crossover switch to max(granted speakers are all set to small and 80hz) OR disable(speakers are all set to small and 80hz). Which one is a better setting overall?

Put the enabled/disabled switch on the sub to disabled. Once disabled, it doesn't matter where the crossover dial on the sub is set as it is disabled.
On the sub, set crossover switch to disabled, phase to 0, gain to about the 10:00 position.

On the AVR, set all speaker channels to small, sub to on or yes, crossover to 80 Hz.

Now run through the calibration procedures you can find all over this forum.
post #2916 of 10835
When the crossover dial is disabled and my speakers are set to small/crossover set to 80 hz: all frequencies lower than 80 hz will go to my sub. Is this right?
post #2917 of 10835
Quote:
Originally Posted by yashiro81 View Post

When the crossover dial is diabled and my speakers are set to small/crossover set to 80 hz: all frequencies lower than 80 hz will go to my sub. Is this right?

Correct. It is not a hard crossover. Frequencies below the crossover will roll off sharply to the speakers and will roll up sharply to the sub.
post #2918 of 10835
I finally found my sweet spot for my pb12nsd. This is better than having it on the left corner close to the left tower. I put on LOTR-fellowship of the ring and it rocked my basement when Sauron's finger get chopped. Thanks for the help.

post #2919 of 10835
Quote:
Originally Posted by yashiro81 View Post

When the crossover dial is disabled and my speakers are set to small/crossover set to 80 hz: all frequencies lower than 80 hz will go to my sub. Is this right?

The crossover point is in reality only a region where the sound pressure level, (or volume), of those frequencies will start diminishing in accordance with the crossover order or slope. For example, if your crossover is 80 hz, it doesn't mean that there is a stonewall that prevents frequencies below 80 hz from going to your mains. It just means that the sound level of these frequencies is going to be reduced, (most likely by 12dbl), by the time you go down one octave from 80 hz. But you are still going to have a significant amount of frequencies below that 80 hz crossover point going to your mains, probably all the way down to around 45 hz or so. This is the misconception of many owners when purchasing mains. They believe that it is a waste to buy a larger main with low extension because those low frequencies just go to the sub. This is not true. Yes, the low frequencies do start to go to the sub at the crossover point. But the transition is very gradual. You still get a lot of low frequency content going to the mains. By the time you get down to that mark, your subwoofer is doing most of the work... not your mains. This makes integrating your sub to your mains easier.
post #2920 of 10835
I got a question for fellow svs owners primarily pb-10 nsd. I bought my pb-10 about three weeks ago and just two days ago I watched a movie called Pulse and at the last scene. It had EXTREMELY heavy bass 15-20hz on a loop. It sounded almost like a clapping sound and when I looked at the woofer it was moving like crazy with full excursion. After that movie I've noticed when watching movies that I watched a couple weeks ago it sounds totally different and I even had to turn the gain down a little because it sounded more boomy than the last time I watched the movie and now i'm noticing a little distortion. I've also noticed the the woofer moves a lot more now. Well my question is, do these subs get broken in after heavy use or did I break my sub by pushing it too hard?
post #2921 of 10835
Quote:
Originally Posted by DevilDog151 View Post

I got a question for fellow svs owners primarily pb-10 nsd. I bought my pb-10 about three weeks ago and just two days ago I watched a movie called Pulse and at the last scene. It had EXTREMELY heavy bass 15-20hz on a loop. It sounded almost like a clapping sound and when I looked at the woofer it was moving like crazy with full excursion. After that movie I've noticed when watching movies that I watched a couple weeks ago it sounds totally different and I even had to turn the gain down a little because it sounded more boomy than the last time I watched the movie and now i'm noticing a little distortion. I've also noticed the the woofer moves a lot more now. Well my question is, do these subs get broken in after heavy use or did I break my sub by pushing it too hard?

They do get broken in some, (not to a degree that I would call noticeable, though), but my concern is that that clapping sound that you heard may have been the sub bottoming out during that scene. I believe that the sub does have a limitator to protect the driver from extreme excursions that could damage it. You may have reached a certain limiting factor in that Pulse passage, so I would get in touch with Ed at SVS if you have any concerns that your sub may not be functioning as it should. There should be no distortion or boominess from your PB10 NSD.
post #2922 of 10835
Quote:
Originally Posted by DevilDog151 View Post

I got a question for fellow svs owners primarily pb-10 nsd. I bought my pb-10 about three weeks ago and just two days ago I watched a movie called Pulse and at the last scene. It had EXTREMELY heavy bass 15-20hz on a loop. It sounded almost like a clapping sound and when I looked at the woofer it was moving like crazy with full excursion. After that movie I've noticed when watching movies that I watched a couple weeks ago it sounds totally different and I even had to turn the gain down a little because it sounded more boomy than the last time I watched the movie and now i'm noticing a little distortion. I've also noticed the the woofer moves a lot more now. Well my question is, do these subs get broken in after heavy use or did I break my sub by pushing it too hard?

It sounds like you have not calibrated your subwoofer. If you do not have a SPL meter, run, don't walk, to your nearest Radio Shack and get one. Pulse has some *extreme* low bass, and if you calibrated by ear, it's very likely your sub was quite hot, and that scene is a bit much for the PB10 if it is played too hot. The odds of damage, however, are very slim.

-Robb
post #2923 of 10835
Hey thanks guys. I'm working on getting a spl meter and calibrating my sub. I got a Onkyo 705 I set the lpf of lfe to 120hz and set the gain on the sub at a little over half at about the 1 o'clock position and just ran with that. I've determined that the distortion I thought I was hearing was actually the shelf on the wall where the sub is was vibrating against the wall. I turned down the level calibration on the reciever to -2 and left everything the same and now it sounds perfect. I'm still going to get a meter to calibrate it and my other speakers.
post #2924 of 10835
hey guys i have a pair of logitech 2.1 speakers that i have hooked up to my computer. can i disconnect the sub from my logitech speakers and plug in my pb12/plus2 instead? good idea or bad idea?
post #2925 of 10835
Normally computer speakers require the subwoofer because the amplifiers for the main channels are also located in the sub cabinet.

Some folks use a 1/8" jack splitter and send one output to the PC speakers and the other output to a powered subwoofer (with a 1/8 -> RCA cable). You have to set the volume controls on the speakers and powered sub to match, then use the master sound card volume to control them in tandem.
post #2926 of 10835
Quote:
Originally Posted by jvgillow View Post

Normally computer speakers require the subwoofer because the amplifiers for the main channels are also located in the sub cabinet.

Some folks use a 1/8" jack splitter and send one output to the PC speakers and the other output to a powered subwoofer (with a 1/8 -> RCA cable). You have to set the volume controls on the speakers and powered sub to match, then use the master sound card volume to control them in tandem.

thanks for the quick reply... does that mean i would have to have two settings for my svs sub? one for the computer and one for the HT? if so, then this sounds like more hassle than its worth
post #2927 of 10835
Yeah if you want to use your HT sub with the computer then just hook your PC sound card up to your receiver and forget about the Logitech speakers.
post #2928 of 10835
Quote:
Originally Posted by jvgillow View Post

Yeah if you want to use your HT sub with the computer then just hook your PC sound card up to your receiver and forget about the Logitech speakers.

the problem is my computer is next to my sub but my sub is far from my receiver/tv so i can't really hookup my computer to my receiver. since the sub was so close to my computer i figured i could give it a try but i'm guessing its not a good idea.

thanks though!
post #2929 of 10835
The manual for my 25-31pc-plus states that it is only necessary to use either the L or R low level inputs to connect the receiver's sub output to the sub. In my case it makes a substantial difference if I connect it to both L & R inputs using a Y-cable. Why would this be? (Note: it is connected via a Behringer Eq)

I always wondered why my sub level control had to be set so high (2 o'clock).

Now after connecting with the Y-cable it is backed off to 11 o'clock to achieve the same level.

I have proved this again by connecting each one of the two rca connectors on the Y-cable in turn seperately and, sure enough, the level drops by about 10-12db.

This doesnt make sense to me considering the statements in the manual that only connection to either the left or right input is necessary - could it be something to do with having the Behringer in the loop?
post #2930 of 10835
Quote:
Originally Posted by btiltman View Post

The manual for my 25-31pc-plus states that it is only necessary to use either the L or R low level inputs to connect the receiver's sub output to the sub. In my case it makes a substantial difference if I connect it to both L & R inputs using a Y-cable. Why would this be? (Note: it is connected via a Behringer Eq)

I always wondered why my sub level control had to be set so high (2 o'clock).

Now after connecting with the Y-cable it is backed off to 11 o'clock to achieve the same level.

I have proved this again by connecting each one of the two rca connectors on the Y-cable in turn separately and, sure enough, the level drops by about 10-12db.

This doesn't make sense to me considering the statements in the manual that only connection to either the left or right input is necessary - could it be something to do with having the Behringer in the loop?

When you split the input signal to both the left and right inputs, you have no (or minimal) signal loss to each side. When you feed this split signal to both inputs, the preamp section sums both inputs together. This gives the input a stronger signal as if you increased the output gain on the AVR. This allows you to decrease the gain on the sub's amp.
post #2931 of 10835
I'm about order one of the SB12-Plus and PCi 25-31. Normally I wouldn't discuss it and go for the PCi 25-31 but due to the size of the PCi I'm leaning towards the SB12.

Below is my living room layout. As you can see the room is a total of about 3200 cubic feet (2600 liv.room and 600 kitchen). In red are the possible spots of placing the sub (behind the couch is not an option since I'll get some on-wall surrounds and push the couch all the way to the back wall).

Do you think the SB12 will be able to fill this room adequately? I contacted SVS and they suggested that due to the size of the room it will need, at least, the PCi 25-31 or the PSB-12NSD. However, as someone suggested in another forum these suggestions are for achieving reference levels in a room, but I never listen at really loud levels (in other words I can easily carry out a loud conversation during a movie).

So what will I get less if I go for the SB12, especially at moderate levels that I usually listen? Will I notice the difference in terms of response and depth if I get the PCi 25-31? Do you think its a risk to get the SB12? I don't have an option to return it since I'm placing an order overseas.
LL
post #2932 of 10835
If I were you I'd get the 25-31PC PLUS. It might be a little more than you were thinking, but trust me the triple ports, bigger and better amp, and the plus woofer make it one amazing value!

If you don't want to spend that much....I'd go the 25-31 route over the sb12 because of your room size.


Just from looking at your room too, I think I'd run the sub in one of the back corners behind your seating area. Running it upfront by the mains I think is a bad idea because of how open that area is. The rear allows corner placements which is best for a sub in my opinion.
post #2933 of 10835
Quote:
Originally Posted by panayi View Post

I'm about order one of the SB12-Plus and PCi 25-31. Normally I wouldn't discuss it and go for the PCi 25-31 but due to the size of the PCi I'm leaning towards the SB12.

Below is my living room layout. As you can see the room is a total of about 3200 cubic feet (2600 liv.room and 600 kitchen). In red are the possible spots of placing the sub (behind the couch is not an option since I'll get some on-wall surrounds and push the couch all the way to the back wall).

Do you think the SB12 will be able to fill this room adequately? I contacted SVS and they suggested that due to the size of the room it will need, at least, the PCi 25-31 or the PSB-12NSD. However, as someone suggested in another forum these suggestions are for achieving reference levels in a room, but I never listen at really loud levels (in other words I can easily carry out a loud conversation during a movie).

So what will I get less if I go for the SB12, especially at moderate levels that I usually listen? Will I notice the difference in terms of response and depth if I get the PCi 25-31? Do you think its a risk to get the SB12? I don't have an option to return it since I'm placing an order overseas.

You would certainly notice a difference between the SB and the PCi below about 30hz at any volume. The little SB is great for it's size, but can't quite get down like the big boys. This wouldn't be very obvious with music, but with movies, yes. Since you don't listen too loud, overall output shouldn't be a problem in either case.
post #2934 of 10835
Mojo...you all know how we get. Once you hear good bass..you turn it up a little more and a little more

I think the PC or the PC+ for him is the way to go with a 3000 cuft room, and the layout is pretty open too.
post #2935 of 10835
so is TV officially out of SVS? I've heard some unconfirmed confirmations from audio insiders, but hopefully Ed or Ron can shed a little light.

will SVS change its name, or did they come to an agreement for the name?

just curious.
post #2936 of 10835
SS has a nice ring to it

SMS also sounds very familiar
post #2937 of 10835
If they change their name, they should have it as Subsonic. Sounds cool.
post #2938 of 10835
Thanks for the help. I chose performance over appearance and ordered the PCi 25-31.

Cheers!
post #2939 of 10835
Quote:
Originally Posted by panayi View Post

Thanks for the help. I chose performance over appearance and ordered the PCi 25-31.

Cheers!

You won't be sorry.
post #2940 of 10835
Picked up a used PB12-NSD the other week. Is there any way to decipher when the unit was made by the serial number on back? I'm just curious about that.

I bought this with the intention that I could get my money back if I didn't like it. Well...........The unit sounds great. I found a spot where I'll only need one band of peq to tame a nasty bump at 40hz and I'll be good to go.

I do about 75% music and 25% movies. I was surprised at how much the sub improved music even with pretty much nothing below 40hz. I guess it let's my mains "breath" a little easier (mains are Carver Platinum MKIV's with 4 12" woofers per speaker by the way).

REQ confirms this puppy is flat to 18hz and plays quite loud for a 12" driver. I am now a believer that even if your system does not "require" a sub, It can still benifit from one if properly implemented.
New Posts  All Forums:Forum Nav:
  Return Home
AVS › AVS Forum › Audio › Subwoofers, Bass, and Transducers › Official SVS Owners/Support Thread.