Cabinet type and stated extension, not the number on the amplifier · review
The only subwoofer here that states power as RMS and gives a frequency range with both ends — 40 to 250 Hz — which makes it comparable in two ways at once.
The bottom line The most rigorously stated subwoofer in this catalogue on paper — RMS power, both ends of the range, adjustable crossover — in a modest cabinet.
80 W RMS, and 40 to 250 Hz. The first is a measurement of continuous power; the second gives both ends of the range rather than only the low one. Together they let this cabinet be planned into a system rather than bought and hoped for.
It sets how high the crossover can be placed. With small satellite speakers that roll off early, a subwoofer that stops at 120 Hz leaves a hole; one that reaches 250 can cover it. That is the question the upper figure answers and almost no listing addresses.
On the cabinet itself, which means integration is possible even with an amplifier that has no crossover control. Set it where the main speakers stop, not where the subwoofer can reach.
Fill a large room, or reach the lowest octave. 40 Hz is a higher floor than the 35 Hz stated on the Edifier, and an 8-inch driver on 80 W is a small-room component.
Tolerances. “40 to 250 Hz” without a decibel reference is a range rather than a specification. It is nonetheless the second-best-stated subwoofer here.
On sale at around 130 € on the German, French, Italian and Spanish Amazon stores at the time of checking.
Listed but with no offer on the American and British Amazon stores — the reference exists there and nobody is currently selling it.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 4 September 2026. The live price is at the top of the page.
| Driver | 8 inch — stated |
|---|---|
| Power | 80 W RMS — stated as RMS, which is a measurement |
| Frequency range | 40 Hz to 250 Hz — stated with both ends |
| Crossover | Adjustable — stated |
| Use | Hi-fi and home cinema — stated |
| Amazon reference | B09XHMJN4F (same reference on 6 Amazon marketplaces) |
| EAN | 8437023900345 |
Because RMS is a measurement of continuous power, and the larger unconditioned numbers on soundbar boxes are sums of peaks. Comparing them directly is meaningless. An RMS figure can be compared with another RMS figure and with nothing else.
Where the subwoofer stops being useful. It sets the highest crossover point available, which matters when the main speakers are small satellites that cannot reach far down — a subwoofer that stops at 120 Hz cannot fill the gap.
Active · 60/120 W stated as a pair · sold singly
A German-made active subwoofer quoted conservatively — 60/120 W — in the two-figure form that makes a rating comparable rather than impressive.
Best for: A small or medium room, and a system built from components rather than bought as a package.
≈ 252 €
8-inch driver · 70 W · low-pass filter · down to 35 Hz stated · MDF cabinet · RCA · standby
The best-specified subwoofer in this catalogue: it publishes a frequency extension figure — 35 Hz — which nothing else here does.
Best for: A small to medium room, and anyone who wants to compare a published number rather than infer from a driver size.
≈ 129 €
30.5 cm (12 inch) driver · digital amplifier · 200 W / 400 W stated · active
The largest driver in this catalogue — 30.5 cm — with power stated in the two-figure form the trade uses: sustained and peak.
Best for: A large room, or a small one where the lowest octave is the point rather than an afterthought.
≈ $249
