Two 12-inch sealed subwoofers — one stated, one inferred — which should you buy?
Try both in a build →REL Acoustics HT/1205 MKII in the slot, SVS SB-2000 Pro one swap away.
The short answer
The two rows agree on the alignment and the driver — sealed, single 12-inch, Class D — but only the REL states them outright, where the SVS row's driver size, driver count and configuration are inferences in our data and its sealed alignment is a retailer listing. Their amplifier figures are close enough to be one class: 550W RMS against 500W, both manufacturer-stated, or about 0.4 dB. Buy the SVS SB-2000 Pro for the controls and the only extension figure on the page: a 30–200 Hz low-pass range, variable 0–180° phase, app control and a 19 Hz ±3 dB claim — reading that last one as retailer-sourced rather than manufacturer-stated, along with its enclosure type, dimensions and weight. Buy the REL Acoustics HT/1205 MKII for what it states outright: two RCA inputs, an LFE input, White and Black finishes and a manufacturer-stated 43.2 lb cabinet, where the other row leaves finishes and RCA count blank.
As tracked by Home Theater Builder: the REL Acoustics HT/1205 MKII tracks at $899; the SVS SB-2000 Pro at $850.How we verify this data →
REL's HT/1205 MKII and SVS's SB-2000 Pro are the same idea executed twice: a sealed, single 12-inch, Class D subwoofer — manufacturer-stated on the REL, inferred and retailer-sourced on the SVS — $899 vs $850 as tracked today. The amplifiers are close enough to be one class, so the sheets decide.
Specifications · side by side · per-field provenance
● SOURCE-TRACKED
Spec
REL Acoustics HT/1205 MKII
SVS SB-2000 Pro
Price
$899
$850
Brand
REL Acoustics
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)
500
550
Enclosure type
sealed
sealed
Down firing
No
not stated
Wireless option
Yes
Yes
RCA inputs
2
not stated
LFE input
Yes
Yes
Height (in)
15.3
14.6
Width (in)
16.3
14.2
Depth (in)
17.3
17.1
Weight (lbs)
43.2
38.6
Finish options
White, Black
not stated
Peak power (W)
not stated
1500
Frequency response, low (Hz)
not stated
19
Frequency response tolerance
not stated
plus minus 3dB
Low-pass crossover, min (Hz)
not stated
30
Low-pass crossover, max (Hz)
not stated
200
Phase control
not stated
variable 0 to 180
Phase adjustment range (°)
not stated
0° – 180°
Auto on
not stated
Yes
App control
not stated
Yes
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
The one fully like-for-like reading on this page is the amplifier: 550W RMS on the SVS against 500W on the REL, both manufacturer-stated, which is roughly 0.4 dB and nothing a listener places — and only the SVS row records a peak figure (1,500W). Alignment and driver match too — sealed, single 12-inch, Class D on both rows — but only the REL states them outright: on the SVS row the 12-inch size, the driver count and the driver configuration are inferences in our data and the sealed alignment comes from a retailer listing, so the resemblance is recorded rather than verified. Extension exists on one row only — 19 Hz at a stated ±3 dB on the SVS, no frequency figure at all on the REL — and that figure needs a provenance flag rather than a ranking: the SVS's frequency, tolerance, enclosure type, dimensions and weight are ALL recorded from a retailer listing rather than the manufacturer, which is five of the fields an argument would otherwise rest on. Setup splits cleanly. The SVS states a 30–200 Hz low-pass range, variable 0–180° phase and app control, and its auto-on entry is an inference in our data. The REL states two RCA inputs, an LFE input, White and Black finish options and a manufacturer-stated 43.2 lb cabinet, where our SVS row records no finish field and no RCA count. Neither blank is a stated no.
The verdict
The two rows agree on the alignment and the driver — sealed, single 12-inch, Class D — but only the REL states them outright, where the SVS row's driver size, driver count and configuration are inferences in our data and its sealed alignment is a retailer listing. Their amplifier figures are close enough to be one class: 550W RMS against 500W, both manufacturer-stated, or about 0.4 dB. Buy the SVS SB-2000 Pro for the controls and the only extension figure on the page: a 30–200 Hz low-pass range, variable 0–180° phase, app control and a 19 Hz ±3 dB claim — reading that last one as retailer-sourced rather than manufacturer-stated, along with its enclosure type, dimensions and weight. Buy the REL Acoustics HT/1205 MKII for what it states outright: two RCA inputs, an LFE input, White and Black finishes and a manufacturer-stated 43.2 lb cabinet, where the other row leaves finishes and RCA count blank.
Alignment and driverEither — Both rows land on a sealed, single 12-inch, Class D design — but only the REL states the driver and the enclosure outright; on the SVS row the 12-inch size, the single-driver count and the sealed alignment are an inference and a retailer listing in our data, so the resemblance is recorded, not verified.
Stated amplifierSVS SB-2000 Pro — 550W RMS against 500W, both manufacturer-stated — about 0.4 dB — and only the SVS row records a peak figure (1,500W).
An extension figure at allSVS SB-2000 Pro — 19 Hz at a stated ±3 dB on the SVS row; our REL row records no frequency figure at all, though the SVS figure is retailer-sourced rather than manufacturer-stated.
Dialling it in from the subSVS SB-2000 Pro — A 30–200 Hz low-pass range, variable 0–180° phase and app control on the SVS; our REL row records none of the three.
Matching it to the roomREL Acoustics HT/1205 MKII — White and Black finish options are stated on the REL row; our SVS row records no finish field at all.
Connections you can countREL Acoustics HT/1205 MKII — Two RCA inputs and an LFE input are stated on the REL row; our SVS row states an LFE input but no RCA count.
The one fully like-for-like reading here: 550W RMS against 500W, both manufacturer-stated, which is about 0.4 dB — and only the SVS row records a peak figure (1,500W).
The alignment question that usually decides a subwoofer page is settled asymmetrically here: the REL states its sealed enclosure, its single 12-inch driver and its Class D amplifier outright, where our SVS row states only the Class D amplifier — its 12-inch size, driver count and configuration are inferences in our data and its sealed enclosure comes from a retailer listing.
Only one extension figure exists on this page — 19 Hz at a stated ±3 dB on the SVS, against no frequency figure at all on the REL — so depth is reported as undocumented on one side and never ranked.
Provenance honesty, and it matters here: the SVS's frequency figure, tolerance, enclosure type, dimensions and weight are ALL retailer-sourced rather than manufacturer-stated — five of the fields the argument would otherwise rest on.
Three setup fields sit on the SVS row only — a 30–200 Hz low-pass range, variable 0–180° phase and app control — and its auto-on entry is an inference in our data rather than a stated figure.
It runs the other way on what you can see and plug in: the REL states White and Black finishes, two RCA inputs and a manufacturer-stated 43.2 lb cabinet, where our SVS row records no finish field and no RCA count.
