In this review, we will be comparing HT 1205 MKII and SB-1000 Pro, two Powered Subwoofer speakers from REL and SVS. Being Powered subwoofers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them. Let's have a brief look at the main features of REL HT 1205 MKII and SVS SB-1000 Pro first before getting into our more detailed comparison.
The sections below take each area in turn: driver and amplifier, frequency response, physical size and connectivity.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.REL HT 1205 MKIIand SVS SB-1000 Pro have the same driver set up: Both subwoofers have 1 x 12" drivers.
Frequency Response
HT 1205 MKII has a frequency range of 22-200 Hz whereas SB-1000 Pro has a frequency range of 20-270 Hz. With a minimum frequency of 20Hz, the SB-1000 Pro can go slightly deeper then the HT 1205 MKII's min frequency of 22Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Subwoofer class in our database.
Low Frequency
Subwoofer Speakers
High Frequency
Subwoofer Speakers
Physical Specs
The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare REL HT 1205 MKII's and SVS SB-1000 Pro's external dimensions. REL HT 1205 MKII has external dimensions of 387.4 x 412.8 x 485.8mm () whereas SVS SB-1000 Pro has external dimensions of 343.0 x 331.0 x 402.0mm (13-1/2inch x 13inch x 15-13/16inch).
REL HT 1205 MKII is clearly the larger of the two speakers. Its body is 81.8mm wider, 44.4mm taller and 83.8mm deeper than SVS SB-1000 Pro.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the REL HT 1205 MKII is approximately 2005.4cm2 / 310.8inch2 and base area of the SVS SB-1000 Pro is approximately 1330.6cm2 / 206.2inch2. The HT 1205 MKII requires 51% more surface area than the SB-1000 Pro which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a subwoofer may become an important factor if you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. The REL HT 1205 MKII weighs 19.60kg / 43.1lbs and the SVS SB-1000 Pro weighs 11.82kg / 26lbs. This makes the HT 1205 MKII 66% heavier than the SB-1000 Pro.
Here is a comparison of how HT 1205 MKII and SB-1000 Pro's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
20 Hz
vs
22 Hz
|
Generates deeper bass |
 High Frequency Response |
270 Hz
vs
200 Hz
|
Generates higher frequency |
 App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
 Height |
343mm
vs
387mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1330cm2
vs
2005cm2
|
Takes less floor space |
 Price per pair* |
600USD
vs
899USD
|
costs less (*prices may change depending on the seller, location and time) |
Size, drawn to scale
Both subwoofers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same floor and pushed back to the same wall, so the bigger one visibly takes more of the room.
REL HT 1205 MKII needs about 51% more floor area. REL HT 1205 MKII stands 84mm further into the room. REL HT 1205 MKII is 44mm taller.
| General |
REL HT 1205 MKII |
SVS SB-1000 Pro |
| Brand |
REL |
SVS |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
22-200 Hz |
20-270 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
500-watt RMS |
325-watt RMS |
| Watts Peak (Max) |
n/a |
820-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
12" |
| Woofer Composition |
|
Fiber-composite |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
387.4mm (15.3") |
343.0mm (13.5") |
| Width |
412.8mm (16.3") |
331.0mm (13") |
| Depth |
485.8mm (19.1") |
402.0mm (15.8") |
| Weight |
19.60kg (43.1lbs) |
11.82kg (26lbs) |
| Enclosure |
|
Acoustic Suspension |
| Available Colors |
n/a |
Black,White |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
5 Years |
| Labor Warranty |
3 Years |
5 Years |
No single best subwoofer here. Your room, where the box can physically go, and whether this is mainly for films or mainly for music will settle it long before the specs do.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (22Hz vs 20Hz). |
| Amplifier power | A | REL HT 1205 MKII has the bigger amplifier - 500W against 325W RMS, about 1.9dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | evenly matched | Near-identical radiating area (12" against 12"). |
| Enclosure | evenly matched | Both are sealed designs, so they roll off in much the same way. |
| Cabinet size | depends | SVS SB-1000 Pro is about 41% smaller by volume. In a subwoofer that is a real trade rather than a preference: box volume is how you get output low down without a bigger amplifier. |
| Warranty | B | SVS SB-1000 Pro carries 5 years on parts against 3 years. A subwoofer amplifier works harder than anything else in the system, so this is not a throwaway line. |
| Price | B | SVS SB-1000 Pro costs less - $600 against $899, about 33% less. |
A REL HT 1205 MKII B SVS SB-1000 Pro
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both subwoofers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Neither runs away with it - they trade advantages. Let your room size and where the box can actually stand settle it. If placement is the constraint - a corner, behind a sofa, under a desk - SVS SB-1000 Pro is the one that will actually go there, and a well-placed small subwoofer beats a badly-placed big one every time.
One thing outweighs everything above: where the subwoofer stands. Room modes can add or remove 10dB or more at a given seat, which is far larger than any difference on this page. Before spending more, try the sub in two or three positions - the crawl test, where you put it in the listening seat and crawl the room to find where the bass sounds best, costs nothing and usually beats an upgrade.