Buy the SVS SB-1000 Pro for a small room or shared walls — sealed roll-off plus room gain is the controllable choice, and it's the box you can actually place. Buy the PB-1000 Pro for a bigger dedicated room where its like-for-like 17 Hz (±3 dB) extension and ported output earn their bulk.
As tracked by Home Theater Builder: the SVS SB-1000 Pro tracks at $600; the SVS PB-1000 Pro at $850.How we verify this data →
Same brand, same 325W RMS amplifier and 12-inch driver ($600 vs $850 as tracked today) — the only real variable is the box. This is the purest sealed-vs-ported decision in our catalog.
Specifications · side by side · per-field provenance
● SOURCE-TRACKED
Spec
SVS SB-1000 Pro
SVS PB-1000 Pro
Price
$600
$850
Brand
SVS
SVS
Driver size (in)
12
12
Driver count
1
1
Driver configuration
single
single
Passive or powered
powered active
powered active
Amplifier class
Class D
Class D
RMS power (W)
325
325
Peak power (W)
820
820
Frequency response, low (Hz)
20
17
Frequency response tolerance
plus minus 3dB
plus minus 3dB
Enclosure type
sealed
ported bass reflex
Down firing
No
not stated
Auto on
Yes
Yes
Built-in room correction
Yes
not stated
App control
Yes
Yes
Wireless option
Yes
not stated
RCA inputs
2
2
Speaker level inputs
Yes
Yes
LFE input
Yes
not stated
Height (in)
13.5
18.9
Width (in)
13
15
Depth (in)
14.8
20
Weight (lbs)
26
42.5
Shaded rows differ · green dot = lab-measured · amber = manufacturer-verified · blue = retailer/community-reported · grey = estimated · “not stated” means exactly that
Reading the numbers honestly
This comparison is a rarity: both extension figures are stated at the SAME ±3 dB tolerance — 20 Hz (sealed SB) vs 17 Hz (ported PB) — so for once the two numbers can be compared as printed. Most sub spec sheets don't grant you that; when tolerances differ or go unstated we say so, and here we can honestly say the ported box digs 3 Hz deeper by the same yardstick.
The verdict
Buy the SVS SB-1000 Pro for a small room or shared walls — sealed roll-off plus room gain is the controllable choice, and it's the box you can actually place. Buy the PB-1000 Pro for a bigger dedicated room where its like-for-like 17 Hz (±3 dB) extension and ported output earn their bulk.
A rare like-for-like extension comparison: 20 Hz vs 17 Hz BOTH stated at ±3 dB — same brand, same yardstick, directly comparable, and we can prove it from the stored tolerance field.
Same 325W RMS, same 12" driver, tracked today at $600 vs $850 — the enclosure is the entire decision, isolated cleanly.
The sealed SB-1000 Pro additionally lists built-in room correction in our data — a control advantage in untreated rooms.