Amina ALF50SM
Invisible in-wall subwoofer, designed to be concealed within a stud partition or hollow ceiling and diffuse sound through a discreet slot.
Description
The ALF50SM from Amina is a subwoofer designed to disappear completely into a stud partition or hollow ceiling. Rather than adding to the décor, it blends into it: sound is delivered through a discreet slot, with no grille or visible front panel, allowing the wall or ceiling to retain its traditional appearance while still benefiting from bass reinforcement.
This subwoofer has an impedance of 4 ohms and a power rating of 100 W, with a sensitivity of 89 dB at 1 m under 2.83 Vrms. Its frequency response extends from 48 Hz to 165 Hz at -6 dB, positioning it as a bass complement rather than a subwoofer capable of reaching very low frequencies: it reinforces the low end of an existing system rather than reproducing deep sub-bass. Its operation requires an external DSP, which is essential for proper use.
With dimensions of 99 mm x 409 mm x 653 mm and a weight of 9 kg, the ALF50SM is fixed directly onto the studs of a partition or hollow ceiling, which requires the installation to be planned in advance, typically during building work or a renovation that allows access to the framework.
This type of subwoofer is intended for installations where aesthetics matter as much as listening quality: a concealed home cinema, a living space with no visible speakers, or a high-end audio integration project where no grille or traditional cabinet is feasible. It is aimed at users prepared to incorporate the electronics required for the project rather than simply connecting a standalone subwoofer.
Technical specifications
| Impedance | 4 ohms |
| Power | 100 W |
| Sensitivity | 89 dB (1 m / 2.83 Vrms) |
| Frequency response | 48 Hz – 165 Hz (-6 dB) |
| Weight | 9 kg |
| Dimensions (H × W × D) | 99 mm x 409 mm x 653 mm |
| Mounting | Direct to studs |
| DSP | External required |
What to check before buying used
When buying used, it is advisable to check the condition of the diffusion slot and the driver, which is not visible from the front, as well as check for any signs of impact or deformation on the chassis intended to be built in. The presence and compatibility of the external DSP required for its operation should also be confirmed, as this component is inseparable from the subwoofer's proper functioning. It is also worth ensuring that the mounting points on the studs have not been damaged during removal.
Looking for this reference: ALF50SM ?
Tell us what you are looking for: our merchants are notified, and one of them may have it in stock.