Monoprice Monolith M-IWSUB8 and M-IWSUB82: two In-Wall subwoofers that go unnoticed

Monoprice has some really interesting speakers and subwoofers in its catalogue. Among them we have a series of devices designed to be placed embedded in the wall. A catalog that grows with two new additions: the Monoprice Monolith M-IWSUB8 and the Monolith M-IWSUB82. Is about two in-wall subwoofers, that is, designed to be embedded in the wall and thus free up the space occupied on the floor. The well-known manufacturer has been quite active for a few months, as they have presented new LCR speakers and dual-speaker subwoofers.

The new Monolith M-IWSUB8 and M-IWSUB82 are designed for wall installation. This means that its installation will be considerably more complicated than that of a normal subwoofer, but it will have the advantage that it will not be necessary to find space on the floor for a large subwoofer. However, we must bear in mind that, unlike most subwoofers sold for Home Cinema, these subwoofers are passive. Namely, need an external amplifier to work, since they do not have their own built-in amplifiers. It is a fairly common solution for dedicated high-performance rooms, although it can also be used in home installations if we design it that way.

Monolith M-IWSUB8

Let’s take a look at the features of the Monolith M-IWSUB8. It is a subwoofer that has a single 8 inch driver with polypropylene cone with rubber edge. Offers a 36 – 200Hz frequency response (±3dB)a sensitivity of 91 dB and a crossover frequency of 120Hz @ 12dB/oct.

comes with one white magnetic cover, but that can be painted in the color that we want. It measures 30.2 x 33.8 cm, while the subwoofer frame is designed to fit into 16-inch (40.6 cm) wood walls.

Monolith M-IWSUB82

The M-IWSUB82 it is a more advanced and larger model than the Monolith M-IWSUB8. It is equipped with two 8-inch wooferswith a 36 – 200Hz frequency response (±3dB) and a sensitivity of 91 dB. Like the previous model, it has an impedance of 4 ohms and a crossover frequency of 120Hz @ 12dB/oct. That is, it is practically like placing two M-IWSUB8 on top of each other.

Monoprice Monolith subwoofers M-IWSUB8 and M-IWSUB82 indoor M-IWSUB82

It has measurements of 29.7 x 54.1cm, being designed, like its little brother, to fit into 16-inch wooden walls. It is also provided with Heavy-duty mounting tabs for easy installation and with the commented white front grille, which can be painted to adapt it to the decoration of the room.

As we have commented, To use these subwoofers you need to connect an external subwoofer amplifier. Although virtually any 4-ohm compatible amp can be used, Monoprice has the SWA-400. It is a compact mono amplifier that offers 400W output with DSP and presets to optimize performance with 8-, 10- or 12-inch recessed subwoofers. Its price is $309. Of course, if we choose to put several subwoofers in our room, we will need an amplifier for each one of them.

And speaking of prices, the Monolith M-IWSUB8 It is already on sale on the manufacturer’s website with an official price of $399. For his part, the Monolith M-IWSUB82 is for sale with an official price of $599.

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