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

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post #1 of 37 Old 10-02-12, 08:55 AM Thread Starter
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SVSound SB13 Ultra

SVS SB13 Ultra


Read the full review here


Manufacturer Specs:

Spoiler


Subwoofer Specs:
  • Cabinet Dims: 17.4" (H) x 17.4" (W) x 17.4"(D)
  • Overall Dims: 17.9" (H) x 17.4" (W) x 20.4"(D)(includes feet, grille, amplifier)
  • Weight: 92 pounds
  • Rigid and braced MDF cabinet
  • Piano gloss black and real black oak veneer finish options
  • Front-firing driver
  • Protective non-resonant steel mesh grille

Driver Specs:
  • SVS 13.5” high-performance Ultra driver optimized for sealed applications
  • SVS custom-tooled die-cast aluminum basket
  • Flat-wire, 3” diameter, high-power, high-temp, 8-layer, aluminum voice coil - unique to SB13-Ultra
  • Polyimide impregnated fiberglass former/bobbin
  • Dual 9", composite layered, linear roll, extreme excursion spiders
  • Integrated tinsel leads
  • Nickel-plated high-tension spring terminals
  • Proprietary injection molded gasket and parabolic SBR extreme-excursion surround
  • Composite pulp/fiberglass press layered cone with stitched surround
  • Low carbon 1008 steel components, electrophoresis black plating
  • FEA-optimized overhung motor structure with custom gap extension plate enhances force/displacement symmetry, lower distortion and increases linear stroke
  • Copper shorting sleeve reduces gap induction and distortion, and enhances thermal conductivity
  • Dual Genox 8H/Y-35 high grade ferrite magnets
  • Oversized pole vent for greater cooling and low noise

Amp Specs:
  • STA-1000D Sledge with 1000 watts RMS continuous power (3600 watts peak dynamic power)
  • High efficiency cool-running Class D switching topology
  • Detachable power cord with main power switch and ceramic fuse
  • RoHS compliant, lead-free construction and world-wide safety certifications
  • Auto-On / On switch with "green" standby mode
  • Stereo line-level RCA and balanced (XLR) I/O connections
  • Normal and Hi input voltage switch
  • Customized EQ and DSP limiter settings specifically for the SB13-Ultra
  • Fully adjustable (frequency and slope) phase-correct speaker/sub digital crossover
  • Intelligent Feature Control (IFC) with bright LCD display
  • Two (2) digital PEQs with adjustable frequency, cut/boost, and Q values
  • Room gain compensation control with adjustable frequency and slope
  • Adjustable digital delay on main speaker line-level outputs to time-align the speakers and subs


Manufacturers Published Measurements



HTS Results

Setup Images






Frequency Response

Manufacturer Match


Sub Zone Methodology


Max Output Before Compression



Spectral Decay



Group Delay



Waterfall



Spectrogram



Harmonic Distortion




Click the Spoiler button for the REW notes from each individual frequency

Spoiler

32 Hz
65536-point spectrum using Rectangular window and no averaging
Input RMS 107.0 dB
Distortion at 32.1 Hz, -5.3 dB FS based on 8 harmonics:
THD 8.3285 %
THD+N 17.5815 %
2nd harmonic 5.6322%
3rd harmonic 5.9698%
4th harmonic 0.8301%
5th harmonic 0.6636%
6th harmonic 0.4609%
7th harmonic 0.5437%
8th harmonic 0.4142%
9th harmonic 0.4405%

40 Hz
65536-point spectrum using Rectangular window and no averaging
Input RMS 108.2 dB
Distortion at 39.9 Hz, -4.4 dB FS based on 8 harmonics:
THD 5.8492 %
THD+N 33.4584 %
2nd harmonic 3.6352%
3rd harmonic 2.3755%
4th harmonic 2.2460%
5th harmonic 2.1495%
6th harmonic 1.5320%
7th harmonic 1.2049%
8th harmonic 1.0857%
9th harmonic 0.8442%

50 Hz
65536-point spectrum using Rectangular window and no averaging
Input RMS 107.9 dB
Distortion at 49.9 Hz, -4.3 dB FS based on 8 harmonics:
THD 1.9054 %
THD+N 7.3711 %
2nd harmonic 1.2633%
3rd harmonic 1.1979%
4th harmonic 0.5060%
5th harmonic 0.3659%
6th harmonic 0.2960%
7th harmonic 0.2151%
8th harmonic 0.1966%
9th harmonic 0.1933%

63 Hz
65536-point spectrum using Rectangular window and no averaging
Input RMS 107.9 dB
Distortion at 63.1 Hz, -4.3 dB FS based on 8 harmonics:
THD 1.8390 %
THD+N 9.5475 %
2nd harmonic 1.0654%
3rd harmonic 1.3481%
4th harmonic 0.4337%
5th harmonic 0.3346%
6th harmonic 0.2083%
7th harmonic 0.1900%
8th harmonic 0.1538%
9th harmonic 0.1619%

70 Hz
65536-point spectrum using Rectangular window and no averaging
Input RMS 108.0 dB
Distortion at 70.0 Hz, -4.2 dB FS based on 8 harmonics:
THD 1.6726 %
THD+N 11.5492 %
2nd harmonic 0.9928%
3rd harmonic 1.3247%
4th harmonic 0.1420%
5th harmonic 0.1762%
6th harmonic 0.0115%
7th harmonic 0.0669%
8th harmonic 0.0326%
9th harmonic 0.0135%

80 Hz
65536-point spectrum using Rectangular window and no averaging
Input RMS 107.9 dB
Distortion at 80.1 Hz, -4.4 dB FS based on 8 harmonics:
THD 2.1694 %
THD+N 18.9441 %
2nd harmonic 1.2177%
3rd harmonic 0.8941%
4th harmonic 0.6427%
5th harmonic 0.8876%
6th harmonic 0.5434%
7th harmonic 0.6853%
8th harmonic 0.4279%
9th harmonic 0.5244%


Regards,
Dale Rasco



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Last edited by Dale Rasco; 11-07-12 at 07:11 AM.
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post #2 of 37 Old 10-29-12, 10:59 AM
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Re: SVSound SB13 Ultra

Hi Dale, Nice attempt to measure this woofer. But I unfortunately have to say I don't believe that your measurements are correct. I use REW and have a bit of experience measuring speakers and I am quite suspect at the Freq response and the waterfall do not look realistic at all. Way too flat and smooth.

Bob
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post #3 of 37 Old 10-29-12, 11:18 AM Thread Starter
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Re: SVSound SB13 Ultra

Hi Bob, I appreciate your feedback. There are plenty of variables that could lead to the smoothness of a response for instance; I am not sure what type of mic and pre-amp you are using and also do not know what type of testing environment you used. I am also unsure of which response you are referring. The response in my results are less smooth than the one that SVS has listed on their own site which is the very first graph listed.

Regards,
Dale Rasco



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post #4 of 37 Old 10-29-12, 11:48 AM
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Re: SVSound SB13 Ultra

Hi Dale, "There are plenty of variables that could lead to the smoothness of a response for instance"

You got that right. But looking at the other freq response that you posted, they all look wrong/incorrect/impossible. Sorry thats the way I see it.

Bob
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post #5 of 37 Old 10-29-12, 12:06 PM
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Re: SVSound SB13 Ultra

Hi Dale, thanks again for you effort, are you able to post the mdat?

Thanks,
Bob
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post #6 of 37 Old 10-29-12, 12:16 PM
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Re: SVSound SB13 Ultra

Hi Dale, Aso,how about measuring and posting graphs according to the accepted and standard REW graph "standards". IE measure at 75db and post the graphs with the standard 45-105db and 20 to 200hz.

Thanks
Bob
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post #7 of 37 Old 10-29-12, 12:31 PM
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Re: SVSound SB13 Ultra

The responses look very similar to all the other responses I see for outdoor sub measuring, including what Ilkka did and what Josh is doing. They are far from "impossible".

Granted we probably do need some consistency for the graph settings.

VERTICAL = 45dB-105dB
HORIZONTAL = 15Hz-200Hz.

This is the standard for helping others with their home response in the REW Forum. That is not feasible for all of the testing measurements here, but we could easily include one for comparison, yet I would recommend 10Hz-200Hz, because there are many viewers who want to see the lower end.
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post #8 of 37 Old 10-29-12, 12:38 PM Thread Starter
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Re: SVSound SB13 Ultra

That is something I had not considered Sonnie and given that the SB13 has a response up to 460z, I should have kept in mind that the methodology calls for up to 200Hz. I will get that graph posted shortly with better explanation. I will also ensure that they all match going forward and that one offs, such as the 460Hz, are spelled out.

Regards,
Dale Rasco



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post #9 of 37 Old 10-29-12, 12:40 PM
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Re: SVSound SB13 Ultra

You could post two graphs on the odd ones, one at 200Hz and another showing the higher response.
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post #10 of 37 Old 10-29-12, 12:57 PM Thread Starter
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Re: SVSound SB13 Ultra

Alright, I uploaded the images using 10Hz-200Hz versus the 10Hz-500Hz for the FR, Group Delay, Spectral Decay and Waterfall. These are probably more like what you are used to seeing Bob and should be much more consistent with the other subs that were tested.

Regards,
Dale Rasco



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