Official SVS Owners/Support Thread. - Page 254

Originally Posted by syswei

I have seen your post that "a single SB12-NSD can hit ~92 dB @ 20 Hz @ 2M GP per CEA-2010" and also a post comparing 2 SBs to a single PB, where it wasn't clear to me whether the 2 SBs were assumed to be co-located or not.

Could you please provide further detail concerning the output differences between a single SB12-NSD and a single PB12-NSD? If you have them, graphs would be great. Or if not, output (or output differences) at various points, 25Hz, 30, 40, 50, 70 perhaps.

Would also be very interested in any data/description concerning differences in the distortion realm, between the two subs.

I am assuming that group delay looks much better with the SB12-NSD.

Thanks in advance for any help.

Originally Posted by mantaraydesign

For the PB12 Plus, are you leaving everything in the default settings?

• Volume (dB)
• High pass filter adjustment (disable/enable, frequency, and slope)
• Low pass filter adjustment (disable/enable, frequency, and slope)
• Phase setting (degrees)
• High pass delay (milliseconds)
• Room compensation (disable/enable, frequency, and slope)
• Subwoofer tune (sealed, 16Hz, 20Hz)
• Parametric EQ (PEQ) 1 and PEQ 2 (frequency, level and Q for each)



The Volume adjustment is the ONLY thing I understand. The rest of the adjustments....WOW!!!! lol

I have the receiver Onkyo TX-NR905. It does have the Auto Test feature. Should I just use the 905 Auto Test feature and leave all the settings on the PB12 Plus alone?

Originally Posted by warpdrive

Basically, yes, most of the time, people should just leave everything else alone, everything should be disabled on the sub. Start off with 20 (default) as the sub's gain/volume. For the subwoofer tune, the default 20Hz setting is good for most people unless there's a specific goal that the customer wants to achieve (the tuning mode gives you a tradeoff of bass extension over high output)

You should take care to run the Audyssey correctly, there's some good guidelines how to do it right in the Audyssey setup guide in the receiver forum.

Lastly, you might need to make one adjustment AFTER you finish Audyssey setup. That means going in and adjusting the receiver to pick "Small" for the speaker type. The Audyssey guide gives advice about why to do that as well.

Originally Posted by neutro

I never saw a PC in person, only in pictures. They look good. So they have this black velvet sock right... So... what's underneath?

Originally Posted by Auditor55

Why is having that info so important to you?

Originally Posted by neutro

While I have Ed on the line... just a quick comment about SVS's website and the process of shopping there. It's really well done and all but there's one thing missing in my opinion: pictures that give a sense of the size of SVS's various offering. They're all shot alone on a uniform or nondescript background. It would be very interesting to 1) have a few pictures of the subs next to familiar objects to give a sense of size and 2) maybe a familiy picture to see the relative sizes of all the subs.

For example, fantasizing about a PC, I see myself upgrading from my SB12 in the future. But with which should I go... judging by price alone, the process is like, the PC12-NSD would be an upgrade but the smallest upgrade possible, and reselling the SB12 most of the cost of the new sub would be recovered. The PC12-Plus is quite a bit more expensive and would probably provide a much more contrasted upgrade. Then again, in this price range, differences of a few hundred bucks are hard to grasp, so why not go for the PC13-Ultra and be done with it.

Then the sheer size and weight of the thing makes me wonder if it's really a good idea (vs. dual NSDs for example, which would be more manageable and almost the same price). My point is that a pictures are worth a thousand words, and even though your pictures are great, they don't help much when trying to decide which sub to choose. Just my $0.02...

Originally Posted by syswei

I have seen your post that "a single SB12-NSD can hit ~92 dB @ 20 Hz @ 2M GP per CEA-2010" and also a post comparing 2 SBs to a single PB, where it wasn't clear to me whether the 2 SBs were assumed to be co-located or not.

Could you please provide further detail concerning the output differences between a single SB12-NSD and a single PB12-NSD? If you have them, graphs would be great. Or if not, output (or output differences) at various points, 25Hz, 30, 40, 50, 70 perhaps.

Would also be very interested in any data/description concerning differences in the distortion realm, between the two subs.

I am assuming that group delay looks much better with the SB12-NSD.

Thanks in advance for any help.

Originally Posted by Ed Mullen

Below is our 2M GP CEA-2010 (distortion-limited) output data for ONE (1) SB12-NSD. For dual colocated SB12-NSD, add 6 dB to these values. Values rounded to nearest 0.5 dB.

Freq/SPL
16/88
20/92
25/96
31.5/101
40/105
50/106.5
63/108
80/108

Originally Posted by syswei

Thank you VERY much, Ed! Are there any distortion data you can share for the SB12-NSD vs PB12-NSD?

Originally Posted by tvuong

Thanks Ed. I am soon to join the SVS club as my SB12 should be here tomorrow. Like you said ' can't cheat the laws of physics' but with your DSP, the FR, db and distortion numbers seem to be as good as it gets for a 14" cube seal sub. Do you know when AH review will be posted?

Originally Posted by tvuong

One question Ed: is the SB12-NSD an upgrade version of the SB12 plus? What are the differences? Thanks.

Originally Posted by Ed Mullen

PB12-NSD data is posted in the Josh Ricci AH review. Below is our %THD data at the CEA-2010 passing SPL - rounded to nearest 0.5%. No surprises here - typical sealed behavior and this woofer stays in really good shape at the CEA-2010 limits.

Freq/SPL/%THD
16/88/16
20/92/18
25/96/21
31.5/101/12
40/105/8
50/106.5/5
63/108/3
80/108/3

Originally Posted by tvuong

Thanks Ed. I am soon to join the SVS club as my SB12 should be here tomorrow. Like you said ' can't cheat the laws of physics' but with your DSP, the FR, db and distortion numbers seem to be as good as it gets for a 14" cube seal sub. Do you know when AH review will be posted?

Originally Posted by Ed Mullen

Probably won't be too long - I would ask Gene though to be sure. I know Josh is super busy and in high demand (he sets the bar IMO).

Yes, we're very happy with the overall performance envelope of the SB12-NSD - look at FR, deep extension, max output, and THD levels and it's a really solid package for a 14" sealed cube. One thing not shown by the above numbers is behavior at the limits. The dual band DSP limiter/compressor is extremely sophisticated and exceedingly transparent - this sub is very graceful at the limits.

Originally Posted by uncola

Just ordered the sb12-nsd. This will be an upgrade from my onkyo 10" htib subwoofer so I expect quite an improvement. I almost got the emotiva x-ref 12 but I was able to get a great deal from svsound by buying b-stock and they let me choose slow/cheap shipping to hawaii. I was also swayed by svsounds great reputation for customer service and the 5 year all inclusive warranty. Originally I was going to get something like a hsu vtf-2 mk4 but I really wanted the sub to fit in my cabinet where the onkyo htib sub is currently residing and the sb12 fits perfectly.. plus it's going in a bedroom so I'm not sure I really needed a dual ported 12" with such a large enclosure. Anyway I'm looking forward to receiving it
fyi fun fact: shipping from hsuresearch was $260 for fedex, $40 usps from svsound(to hawaii)

Originally Posted by brian6751

The smarts of the amp was probably the deciding factor for me choosing my sb13-plus over the competition. It seems to be in breakable. Never gets distorted.

Originally Posted by bryan338

Is it bad for the amp or sub if the limiter always goes off? My sub is pb12nsd. Volume in the sub is 10 o'clock and -6.5 in the avr (denon 1910). Thanks

Originally Posted by bryan338

Is it bad for the amp or sub if the limiter always goes off? My sub is pb12nsd. Volume in the sub is 10 o'clock and -6.5 in the avr (denon 1910). Thanks

Originally Posted by uncola

... using an rca y-splitter adapter to connect it to the subwoofer. I read elsewhere this makes the subwoofer louder.. is that true or a myth?

Originally Posted by uncola

I was reading the manual for my sb12-nsd which is still shipping.. it recommends using a single connector rca cable and then using an rca y-splitter adapter to connect it to the subwoofer. I read elsewhere this makes the subwoofer louder.. is that true or a myth? Also, my receiver has two subwoofer preouts.. would it be even better for me to run a normal rca cable from these two preouts, one male plug in each subwoofer preout to the subwoofer? I know those two outs are mirrored on the receiver
edit: it's so cheap that I just ordered the cable and adapter already from monoprice
http://www.monoprice.com/products/pr...seq=1&format=2
http://www.monoprice.com/products/pr...seq=1&format=2