But ported are offered unexpectedly compact for this caliber. Moreover, for MAS-12, the volume is even less than WL. I admit that this is just a typo, because the bass in such a case turns out to be quite hard, with a maximum output above 50 Hz. So I would increase the ported, especially for the model from the Master series.

For the 15-inch model , the actual parameters are somewhat different from the declared ones, and therefore I calculated the cases without regard to the proposed options. The speaker turned out to be stiffer than declared (Qts is higher, Vas is smaller), although Fs remains the same, and in this situation it needs a smaller case without losing bass depth.

Judging by the actual parameters, the REV-15 v.2 will play well in a medium-sized GC – in 60 liters the dynamics will be just right. The bass will turn out to be quite deep and at the same time even, without a clear emphasis on individual notes.

Large calibers are chosen for the maximum depth of the bass, so it is logical to count the bass reflex for such an application. In 80 liters with a port on 35 Hz, a good option will be a good option for ”blacks”. True, with a universality of phase inverter clearance, it is more difficult for the phase inverter, so if not only ”negros” are needed, then the option with sealed looks still preferable.

HOW TO CHOOSE A CALIBER

Subwoofers turned out – as in the textbook. If you need an accurate and “fast” bass, without much getting into the infrabass, but at the same time dense and “meaty”, we definitely choose the 10-inch model. In addition, this is a good option when there is little free space in the trunk.

12-inch speakers – station wagons. They can already play a little deeper and still without much loss of articulation. The bass, though not as accurate as that of the ”tens”, but for not too complex musical genres, the ”dvenashka” will be even more preferable.

15-inch caliber – when you want, as they say, ”deep and soft” bass. A closed box is a relatively versatile option, and in a bass-reflex case, you can build a sub with a higher return “for blacks”.

HOW TO CHOOSE A SERIES

Everything is easier here. If you don’t have a very powerful amp, don’t chase the older series. The initial Master series uses 2-inch voice coils, with these we managed to achieve a little more sensitivity even with more modest magnets. The price is lower, the return is higher, isn’t it great? So if a pair of channels of a conventional amplifier that outputs 300-350 watts into 4 ohms in a bridged connection will work on a sub, then the Master series will be preferable.

The Revolution series uses larger coils – 2.5 inches. This entailed the need to increase the magnets and, accordingly, affected the cost. But then you can use these subs with more powerful amplifiers. In addition, Revolutions have dual 2+2 ohm coils, so there is more freedom when building subwoofers on multiple speakers.

SHORT

It’s great to see that SWAT is confidently shedding the stereotype of audio equipment for the most unassuming, in the last couple of years the brand has made a noticeable leap in engineering. For me personally, at one time the Master and Revolution subwoofers became a complete revelation, and their second generation definitely became more interesting. Subs have exactly the parameters that are needed in a particular application – for normal music systems without the removal of glasses and other self-destructive tendencies. For loud systems, SWAT has other series, but that, as one TV presenter says, is a completely different story.

Technically literate designs
Works well with moderate power amplifiers
Speakers do not require huge cabinets (for their calibers)
Have an increased return in ported