SVSound SB13 Ultra - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 37 Old 10-29-12, 02:47 PM
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Re: SVSound SB13 Ultra

Dale I've been perusing the Sub Zone forum and it's off to a great start. Also, you clearly have some understanding neighbors!
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post #12 of 37 Old 10-29-12, 02:52 PM Thread Starter
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Re: SVSound SB13 Ultra

Thanks Ethan, all neighbors need for motivation is barbecue so I just make sure they stay fed!

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post #13 of 37 Old 10-30-12, 03:47 AM
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Re: SVSound SB13 Ultra

Why doesn't the spectral decay '0' time match the steady state measurements?


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post #14 of 37 Old 10-30-12, 07:16 AM Thread Starter
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Re: SVSound SB13 Ultra

Hi Maverick, thanks for the question. What you may be seeing is the noise floor. I have updated the graph capturing 70db to 105db. My regret on this first series of tests is not taking a proper steady state measurement to account for noise below 65db. Wind could have also been a contributing factor as well. Does this help answer your question?


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post #15 of 37 Old 10-30-12, 07:40 AM
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Re: SVSound SB13 Ultra

Ah, I see what it is! The decay graph has a linear frequency axis!


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post #16 of 37 Old 10-30-12, 07:54 AM Thread Starter
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Re: SVSound SB13 Ultra

Did the second graph help at all?

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post #17 of 37 Old 10-30-12, 08:09 AM
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Re: SVSound SB13 Ultra

You can see it clearly, but it's not directly comparable to the steady state since the frequency axis is different. If you still have the data for it, please post a decay with a logarithmic frequency axis, then the '0' time should match the steady state pretty good. Makes it a bit easier to read and compare, is all.

great effort so far, keep it up!


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post #18 of 37 Old 11-06-12, 02:16 AM
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Re: SVSound SB13 Ultra

Hi Dale,

Nice review, it's great seeing more objective testing.

Question, am I reading the compression graph right, it doesn't look like the SB13 really compresses so much as it just stops getting louder. Is the limiter that effective or was the graph just showing before compression starts kicking in?

Or is it that its late and I should go to bed and stop reading reviews on subs?

SVS did really good job getting that much bass out of such a small box and keeping the FR so flat. For a small sealed box, at a reasonable price, this thing looks pretty impressive.
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post #19 of 37 Old 11-07-12, 07:01 AM Thread Starter
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Re: SVSound SB13 Ultra

Hi Snowmanick, I would have replied sooner but Halo 4 released and that's about all I did yesterday.

In response to your question, there are a couple of things that I need to work on with my testing going forward. I do not use the CEA 2010 methodology and, as Erin H pointed out, there is a more complete test that I could be doing for compression. Additionally, this is the point where the volume really stopped increasing for me and not necessarily a demarcation of compression. The following sweep at 5db higher was compressed though.

Does that help?

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post #20 of 37 Old 11-08-12, 05:08 PM
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Re: SVSound SB13 Ultra

Thanks for the info Dale.
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