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Official SVS Ultra 13 thread - Page 273

post #8161 of 10036
10/25/10 at 3:10pm
Quote:
Originally Posted by Ron Temple View Post

If I'm reading this correctly, the Sledge amp can be heard while the sub is inactive. Is this a humm or buzz? Groundloop?

It's a rather high-pitched pink noise.

SVS is aware of it, but they consider its level acceptable.
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post #8162 of 10036
10/25/10 at 3:21pm
Does the amp itself give off the noise or does it send it through the driver? If it sends it through the driver, it could be stopped by using the sub's crossover unless it originates after the crossover stage.
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post #8163 of 10036
10/25/10 at 3:35pm
Quote:
Originally Posted by LeoB View Post

If you don't hear the noise two feet away from the sub that's fine! In my case the noise is limited to the same distance with the BASH amp, but with the Sledge I could hear it from 14 feet away over the noise of my HTPC and plasma TV (muted) running at the same time. Buy the way, the noise I'm talking about is independent of the gain control.

So you are hearing noise from both the BASH and the Sledge amps? That almost seems like it's coming from something external to the amps.
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post #8164 of 10036
10/25/10 at 3:52pm
Quote:
Originally Posted by LeoB View Post

It's a rather high-pitched pink noise.

SVS is aware of it, but they consider its level acceptable.

All of mine make that sound as well. I have power conditioners and a ground loop isolator for the buttkicker. It's not the signal being sent to the subs.
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post #8165 of 10036
10/25/10 at 4:02pm
Quote:
Originally Posted by d_m1010 View Post

All of mine make that sound as well. I have power conditioners and a ground loop isolator for the buttkicker. It's not the signal being sent to the subs.

I can gladly say my Ultras don't have that issue at all.
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post #8166 of 10036
10/25/10 at 4:11pm
Mine all make a sort of 'wind tunnel' noise.
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post #8167 of 10036
10/25/10 at 4:17pm
Quote:
Originally Posted by d_m1010 View Post

Mine all make a sort of 'wind tunnel' noise.

I think that's a separate issue.
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post #8168 of 10036
10/25/10 at 4:28pm
Dude that's the least of my issues lol.
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post #8169 of 10036
10/25/10 at 5:20pm
Quote:
Originally Posted by croseiv View Post

So you are hearing noise from both the BASH and the Sledge amps? That almost seems like it's coming from something external to the amps.

I can barely hear 60Hz hum no more than 1.5-2 feet away from the sub with the BASH in it, and I could hear that pink noise about 14 feet from the sub with the Sledge in it. The first thing is fine with me, the second one is not.
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post #8170 of 10036
10/25/10 at 5:21pm
Mine are quiet
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post #8171 of 10036
10/25/10 at 5:25pm
Quote:
Originally Posted by rampage123 View Post

Mine are quiet

x2 both my plus and my ultra ...............KNOCK ON WOOD !
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post #8172 of 10036
10/25/10 at 5:25pm
Quote:
Originally Posted by mojomike View Post

Does the amp itself give off the noise or does it send it through the driver? If it sends it through the driver, it could be stopped by using the sub's crossover unless it originates after the crossover stage.

It sent it through the driver.

I guess that noise came as a side effect when SVS tried to squeeze extra 200W from the amp originally designed to produce 800W.
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post #8173 of 10036
10/25/10 at 5:31pm
Rampage and TheFactor, it seems you have missed my point - only the subs with the Sledge amps are affected by this "noise problem". I think both of you have BASH amps.
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post #8174 of 10036
10/25/10 at 5:57pm
Are you the only one here so far with the Sledge amp? I find it difficult to believe SVS would call any amount of "noise" coming from the sub detectable from 14 feet away "within acceptable limits".
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post #8175 of 10036
10/25/10 at 8:54pm
I also just got a PB 13 ultra in black oak with the sledge amp.

I acutally had the PB 12 PLUS and upgraded to the 13.
I have not done fine tuning and such yet but at moderate to higher listening levels there doesn't seem to be a huge difference.

I have not tried giving it closer to its max output yet as I would like to work the unit in first..

Someone posted they would like to see a picture of it... I will try to post it soon. It looks a heck a lot better than the PB12 plus that had the laminate or whatever you call it on the top and oak only on the left.

The whole cabinet is covered with the black oak... Matches my Energy RC-70, LC-R's very nicely...

It is quite true that I can't compare the impact of bass to my Image Dynamics IDMAX 12 in my hatchback car as generally tuning on the ported boxes are higher e.g. 26-40 hz vs home theatre below 20hz...

Although I am surprised that 1000 watt RMS on the pb13 plus does not seem to move the xmas of the speaker as much as my JL Audio 500/1 DC amp... eh... complete different comparison..

Do people generally leave all the settings flat? and just change the Volume?
I did not play around with any phasing, or PEQ 1/2 ...
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post #8176 of 10036
10/26/10 at 3:59am
I ordered my sister 2 Pluses with the sledge amps in the last month and she tells me they're quiet.

Each of my individual Ultras and Pluses are rather quiet, it's just that there are six of them in a small quiet space and my ears are rather sensitive perhaps.
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post #8177 of 10036
10/26/10 at 4:21am
Quote:
Originally Posted by d_m1010 View Post

I ordered my sister 2 Pluses with the sledge amps in the last month and she tells me they're quiet.

Each of my individual Ultras and Pluses are rather quiet, it's just that there are six of them in a small quiet space and my ears are rather sensitive perhaps.

When you say "small", how small?
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post #8178 of 10036
10/26/10 at 4:36am
12x12x7 sealed.
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post #8179 of 10036
10/26/10 at 4:51am
Quote:
Originally Posted by d_m1010 View Post

12x12x7 sealed.

With 6 subs in a 12'X12' room, I think I've determined why you don't hear a hum.
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post #8180 of 10036
10/26/10 at 5:40am
Quote:
Originally Posted by clarionguy View Post

I also just got a PB 13 ultra in black oak with the sledge amp.

I acutally had the PB 12 PLUS and upgraded to the 13.
I have not done fine tuning and such yet but at moderate to higher listening levels there doesn't seem to be a huge difference.

I have not tried giving it closer to its max output yet as I would like to work the unit in first..

Someone posted they would like to see a picture of it... I will try to post it soon. It looks a heck a lot better than the PB12 plus that had the laminate or whatever you call it on the top and oak only on the left.

The whole cabinet is covered with the black oak... Matches my Energy RC-70, LC-R's very nicely..

It is quite true that I can't compare the impact of bass to my Image Dynamics IDMAX 12 in my hatchback car as generally tuning on the ported boxes are higher e.g. 26-40 hz vs home theatre below 20hz...

Although I am surprised that 1000 watt RMS on the pb13 plus does not seem to move the xmas of the speaker as much as my JL Audio 500/1 DC amp... eh... complete different comparison..

Do people generally leave all the settings flat? and just change the Volume?
I did not play around with any phasing, or PEQ 1/2 ...

Congrats on your new sub. can't wait to see what that black oak looks like. hint hint
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post #8181 of 10036
10/26/10 at 9:01am
Quote:
Originally Posted by princenk007 View Post

............ I am depending on the forums to get the justifications for my future sub. since there are no authorized SVS outlets available in my country India, i can't get any demo's of the ultras or experiment with them. All the forum reply's and posts will be the guidelines to me. Thank you people for your interest in reply!

Hsu has an authorized dealer in India.
http://forum.hsuresearch.com/showthread.php?t=30334

There are many boutique A/V stores if you live in a large metro like Bombay or Delhi or Bangalore. They will resell you practically anything.

The problem with "electronics" is that they need to be compatible with 220v/60Hz. The bigger problem is that they need to be tropicalized that means they should work with the 100% relative humidity and 30 C heat that will exist during the Monsoons.

Unless you have a HT setup in a room with A/C (humidity control) you can quickly end up with a 50kg paperweight.

So be careful about what you buy and how well it is supported.

Also with the 100% duty on any legally imported electronic product you are looking to pay double of what a Hsu VTF-3 Mk.3 would cost in the US. But at least it will be support.
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post #8182 of 10036
10/26/10 at 9:51am
100% duty......all together..... uuugh
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post #8183 of 10036
10/26/10 at 5:51pm
Yep, import duty is pretty steep.

Well I am hoping that some of you SVS owners can help ME out.

How on earth do you transport a PC13 Ultra when the original packing is not available? It's a 5-10 mile drive on a freeway. So can I just lay it flat on a truck bed? Or does it need to be transported standing up? I am pretty sure it wont rain but it will be exposed to the elements during the drive.

Also HOW do you test the PC13 when its not connected to an amp? Can I carry test tones on an iPod and connect the the iPod via line level inputs to play the 20-200Hz sweep and other tones? Will that be as effective as a HT test CD?
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post #8184 of 10036
10/26/10 at 6:59pm
Quote:
Originally Posted by mungee View Post

Yep, import duty is pretty steep.

Well I am hoping that some of you SVS owners can help ME out.

How on earth do you transport a PC13 Ultra when the original packing is not available? It's a 5-10 mile drive on a freeway. So can I just lay it flat on a truck bed? Or does it need to be transported standing up? I am pretty sure it wont rain but it will be exposed to the elements during the drive.

Also HOW do you test the PC13 when its not connected to an amp? Can I carry test tones on an iPod and connect the the iPod via line level inputs to play the 20-200Hz sweep and other tones? Will that be as effective as a HT test CD?

You can lay it flat, just put some blankets under it and tie it so it can't roll. Maybe cover it with plastic also.
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post #8185 of 10036
10/26/10 at 11:22pm
Quote:
Originally Posted by mungee View Post

...snip...

Also HOW do you test the PC13 when its not connected to an amp? Can I carry test tones on an iPod and connect the the iPod via line level inputs to play the 20-200Hz sweep and other tones? Will that be as effective as a HT test CD?

It has a built in amp. You only need to send it a line level signal.

I was going to suggest a laptop with an external sound card. Don't have an iPod but it sounds like it might work.
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post #8186 of 10036
10/27/10 at 3:19am
Surfing You Tube Vids, I saw car/truck/van audio systems with for example, 8 18" drivers, 24 10" drivers etc. All driven with several thousand watts (multiple amplifiers) DB in excess of 150. I thought I had a pretty big home stereo system, until I saw these extreme systems.
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post #8187 of 10036
10/27/10 at 4:26am
rampage,

In car audio competition, isn't it all about SPL?

If you remove half those drivers and power, you're only dropping 3-6 dbs.
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post #8188 of 10036
10/27/10 at 4:43am
Quote:
Originally Posted by JimP View Post

rampage,

In car audio competition, isn't it all about SPL?

If you remove half those drivers and power, you're only dropping 3-6 dbs.

I suppose it would.What is it,2 times the amplification for each 3 db increase?
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post #8189 of 10036
10/27/10 at 4:56am
Quote:
Originally Posted by rampage123 View Post

I suppose it would.What is it,2 times the amplification for each 3 db increase?

Right...then another 3 for close proximity...sometimes.
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post #8190 of 10036
10/27/10 at 5:44am
Quote:
Originally Posted by JimP View Post

Right...then another 3 for close proximity...sometimes.

Ok then for example say 89 db sensitivity at one watt, then what would these 30,000 watt systems do. Also their multiple drivers are very close prox. Like 4 rows of drivers times 6 per row.

To answer my own question, a speaker with a sensitivity of 89 DB at one meter with a one watt input......., would produce 134 DB at one meter, with 32,768 watts!!!! (doubling the wattage for each 3 DB increase)

My mains are 89 DB/one meter/one watt. My two mono amps are rated a @ 300 watts each ( I'm using one amp per speaker) . So If I'm correct the most I could get is 113 DB @256 watts input at one meter. Is this correct?
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