SVS PB13-Ultra 10 Hz tune

[Ilkka]

Manufacturer: SV Sound
Model: PB13-Ultra
Provided by: SV Sound
Manufacturer link: SV Sound, L-Sound
Price: 1630-1751 EUR, 1499-1699 USD (+shipping)

Manufacturer specs:
• Exclusive SVS Ultra-13" high-output woofer
• 750 watt BASH amp with room compensation
• Computer Assisted Design (CAD) enclosure
• Front-firing configuration with co-located vents
• Distinctive magnetic SVS grill and badging
• "Stackable" form factor allows easy dual subs
• 3.5" high-flow flared ports CURVE (TM) tuning
• Assembled in the Ohio SVS factory
• Choice of wood veneers, gloss or textured black
• Selectable Sealed, 20Hz, 15Hz or 10Hz modes
• +/- 3 dB 18 Hz-150 Hz (anechoic) in 20hz mode
• Size: Approx. 27” D x 20.5 " W x 22" H (w/o grill)
• Warranty: 3 year "bumper to bumper" coverage
• Support: Free 7 day/week customer service
• Weight: 155 pounds

Configuration as tested:
Phase: 0 degrees
Crossover: Bypassed
Tuning frequency/Subsonic filter: 10 Hz (two port plugs)
Room Compensation: Off
Orientation: Woofer and ports facing the mic

[Ilkka]

+/- 3 dB points: 16.8 Hz - 55 Hz (crossover min)

+/- 3 dB points: 13.3 Hz - 147 Hz (crossover max)

[Ilkka]

[Ilkka]

[RoKo2001]

We have been testing these (actually two of them) for a couple of months now here in Norway. Quite outstanding output and also superb integration for not only movies but also music.

Definitely a subwoofer for those who wants "it all"...

When will you release your test of the PC-13 Ultra (cylinder/tube)...?

Keep up the good work, Ilkka!

[OvalNut]

The Ultra in 10hz tune is looking better all the time. Those are some very clean clear numbers it posted. I will say that it's amazingly great in 10hz tune up until you get to start pushing port noise which for me happens about 4-5 db louder than I listen, so it's all good.

Thanks to Ilkka and his friends for all this good work.


Tim

[Ilkka]

RoKo2001 wrote:

When will you release your test of the PC-13 Ultra (cylinder/tube)...?

I haven't tested it yet so I can't release it yet. Hopefully I will be able to test it next spring.

[Ilkka]

OvalNut wrote:

The Ultra in 10hz tune is looking better all the time. Those are some very clean clear numbers it posted. I will say that it's amazingly great in 10hz tune up until you get to start pushing port noise which for me happens about 4-5 db louder than I listen, so it's all good.

Thanks to Ilkka and his friends for all this good work.


Tim

I have to say that I don't recommend using the 10 Hz tune unless one uses only low to medium listening levels (especially music is fine). I don't believe one can clearly notice the added extension over the 15 Hz tune, but the higher deep bass distortion and port noise will be perceived pretty easily. It is true that the 10 Hz and sealed settings shape the frequency response by taking out some of the energy around 15-30 Hz and moving it towards the lower frequencies. That can make the bass sound less 'heavy' and less 'boomy' in many typical rooms. So if that is the case with you, the 10 Hz tune is justified. Just remember that you are deliberately hampering down the performance at higher frequencies by doing this.