SVS PB10-ISD (sealed)

[Ilkka]

Manufacturer: SV Sound
Model: PB10-ISD
Provided by: Jeje2
Manufacturer link: SV Sound, L-Sound
Price: $429

Manufacturer specs:
• Proprietary SVS-designed long-throw 10" woofer
• 300 watt BASH digital switching amp
• Computer aided cabinet design with 1" front baffle
• Front-firing design with flush fit woofer and vent
• Patented 3" wide-flare port fittings
• Six removable, compliant floor isolation points
• Four finish choices to match any décor
• Color-keyed fabric grill with chromed mounting pins
• Extra heavy-duty, removable 8 foot power cord
• Contemporary, "seamless" cabinet styling
• +/- 3dB from 20-100 Hz anechoic, in room extension will be 2-5 Hz deeper
• Size: 15 ½" wide x 19" high x 21 ½" deep
• Weight: 60 pounds
• 220~240V 50/60Hz configuration available

Configuration as tested:
Phase: 0 degrees
Orientation: Woofer and port facing left
Front grill removed
Port plug was used

[Ilkka]

+/- 3 dB points: 32.5 Hz - >200 Hz

[Ilkka]

[Ilkka]

[Ilkka]

[Ilkka]

Since so many people had asked about plugging the port of the PB10-ISD, I had to test whether there were more positive than negative effects. Naturally the shape of the frequency response changes drastically, the -6 dB point shifts up to 32 Hz which is a good thing if your room has lots of low frequency room gain and the normal open port version causes a rising response towards the low end. Naturally the low frequency maximum output is also reduced by around 6 dB. Up higher the max output stays similar with the ported version. The amount of distortion goes slightly higher, especially at lower frequencies, which naturally isn’t a good thing. The group delay stays below the 1 cycle limit all the way down to the test limit at 15 Hz. The amount of ringing is also cut down, though one can still see the effect of a high pass filter at around 19 Hz which can’t be disabled.

The artificially sealed PB10-ISD is a good option for those whose room has lots of low frequency room gain and who feel that the low end sounds a little bit too strong but don’t want to use any EQ to reduce it.

+ Good frequency response for smaller rooms

- Lower deep bass maximum output compared to ported version
- High distortion, especially above 40 Hz
- No crossover