In this review, we will be comparing Thetis 340 and Thetis 300, two Powered Subwoofer speakers by Triangle. 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 Triangle Thetis 340 and Triangle Thetis 300 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.Both Triangle Thetis 340and Triangle Thetis 300 have a single woofer setup however the Triangle Thetis 340's woofer is 10-inch whereas the Triangle Thetis 300 features a 8-inch woofer.
Frequency Response
Thetis 340 has a frequency range of 25-120 Hz whereas Thetis 300 has a frequency range of 32-120 Hz. With a minimum frequency of 25Hz, the Thetis 340 can go significantly deeper on the low side and provide stronger bass compared to the Thetis 300's min frequency of 32Hz.
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
Cabinet Type
Both Triangle Thetis 340 and Triangle Thetis 300 have Bass Reflex type cabinets. Bass Reflex type subwoofers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.
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 Triangle Thetis 340's and Triangle Thetis 300's external dimensions. Triangle Thetis 340 has external dimensions of 380.0 x 340.0 x 340.0mm (14-15/16 x 13-3/8 x 13-3/8inch) whereas Triangle Thetis 300 has external dimensions of 340.0 x 300.0 x 300.0mm (13-3/8 x 11-13/16 x 11-13/16inch).
Triangle Thetis 340 is clearly the larger of the two speakers. Its body is 40mm wider, 40mm taller and 40mm deeper than Triangle Thetis 300.
Size, drawn to scale
Both speakers 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 surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Triangle Thetis 340 needs about 28% more floor or shelf area. Triangle Thetis 340 is 40mm deeper, so it stands that much further out from the wall. Triangle Thetis 340 is 40mm taller.
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 Triangle Thetis 340 is approximately 1156.0cm2 / 179.2inch2 and base area of the Triangle Thetis 300 is approximately 900.0cm2 / 139.5inch2. The Thetis 340 requires 28% more surface area than the Thetis 300 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 Triangle Thetis 340 weighs 16.10kg / 35.4lbs and the Triangle Thetis 300 weighs 10.60kg / 23.3lbs. This makes the Thetis 340 52% heavier than the Thetis 300.
Here is a comparison of how Thetis 340 and Thetis 300's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
25 Hz
vs
32 Hz
|
Generates deeper bass |
 Height |
340mm
vs
380mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
900cm2
vs
1156cm2
|
Takes less floor space |
 Price per pair* |
650USD
vs
825USD
|
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.
Triangle Thetis 340 needs about 28% more floor area. Triangle Thetis 340 stands 40mm further into the room. Triangle Thetis 340 is 40mm taller.
| General |
Triangle Thetis 340 |
Triangle Thetis 300 |
| Brand |
Triangle |
Triangle |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
250 watts |
150 watts |
| Frequency Response |
25-120 Hz |
32-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
250-watt RMS |
150-watt RMS |
| Watts Peak (Max) |
400-watt RMS |
250-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
8" |
| Woofer Composition |
Paper composite |
Paper composite |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
Physical Specs |
|
|
| Height |
380.0mm (15") |
340.0mm (13.4") |
| Width |
340.0mm (13.4") |
300.0mm (11.8") |
| Depth |
340.0mm (13.4") |
300.0mm (11.8") |
| Weight |
16.10kg (35.4lbs) |
10.60kg (23.3lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |
Siblings in Triangle's Thetis range - same design thinking, different size. It comes down to your room and your budget.
| Area | Better | Why |
|---|
| Bass depth | A | Triangle Thetis 340 goes deeper - 25Hz against 32Hz. That gap covers the lowest notes of a five-string bass and a concert bass drum. |
| Amplifier power | A | Triangle Thetis 340 has the bigger amplifier - 250W against 150W RMS, about 2.2dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | Triangle Thetis 340 moves more air: 10" against 8" is 1.56x the cone area, not the 1.25x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | evenly matched | Both are ported designs, so they roll off in much the same way. |
| Cabinet size | depends | Triangle Thetis 300 is about 30% 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. |
| Price | B | Triangle Thetis 300 costs less - $650 against $825, about 21% less. |
A Triangle Thetis 340 B Triangle Thetis 300
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?
Triangle Thetis 340 leads across most of the measured areas for a modest premium, so it is the easier pick if the budget stretches. Triangle Thetis 300 is the one to take if it does not. If placement is the constraint - a corner, behind a sofa, under a desk - Triangle Thetis 300 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.