BEYMA SK-07/T
BEYMA SK-07/T — Shaker
50 W AES - 20 – 100 Hz
Part no.: 42A-CHS-SH-BEY-0001
BEYMA SK-07/T — Shaker
50 W AES · Frequency range 20 Hz – 100 Hz
Technical data
- Power handling: 50 W AES
- Frequency range: 20 – 100 Hz
Series: SK · Part no.: 42A-CHS-SH-BEY-0001
Beyma SK-07/T: tactile transducer with 50 W AES for bass you feel from 20 to 100 Hz
The Beyma SK-07/T is not a loudspeaker in the usual sense but a shaker: an electrodynamic tactile transducer that feeds vibration directly into a structure instead of moving air. Its working range spans 20 to 100 Hz, exactly where bass is felt rather than heard. Rated at 50 W AES, it is intended for mounting to seating, risers, stage floors or cinema chairs.
The principle is that of a loudspeaker without a cone: a voice coil in a magnetic field drives a mass, and the reaction force travels through the mounting bolts into the substrate. The SK-07/T thus adds the tactile dimension that even large bass cabinets cannot provide in small rooms or at limited levels. Beyma positions it within the SK series as a rugged component for home cinema, simulators and stage use, and 42.audio carries it as part of its Beyma transducer range.
Use and enclosure
The typical application is home cinema: the SK-07/T is bolted to the frame under a sofa or chair and fed from the LFE channel or a low-pass filtered sum signal. In the studio a shaker under the chair helps judge sub-bass without pushing high levels into the room acoustics. On stage it sits in the drummer's or bass player's riser and makes the low end tangible without a monitor adding more bass to the room.
For operation you need a dedicated amplifier channel with a low-pass filter that cleanly limits the signal to 20 to 100 Hz; content above that only produces rattling in the furniture. The 50 W AES rating is continuous power, so a small channel of a multi-channel amplifier is enough for short impulses. Mounting has to be rigid: any soft interlayer absorbs energy, so bolt it straight onto the wooden frame or a mounting plate.
What to look out for
- Working range 20–100 Hz: a low-pass is mandatory, otherwise the structure rattles audibly.
- 50 W AES: a small dedicated amplifier channel is enough, never run it in parallel with the subwoofer.
- Rigid bolting to the frame: no damping mats in between.
- No sound pressure, only structure-borne vibration: it complements a subwoofer, it does not replace one.
Frequently asked questions
Does the SK-07/T replace a subwoofer?
No. It moves no air and creates no sound pressure, only vibration in the structure it is mounted to. It complements a subwoofer with the tactile component between 20 and 100 Hz.
What amplifier do I need for the SK-07/T?
A dedicated channel with a low-pass filter passing the 20 to 100 Hz band. With 50 W AES continuous rating a small power amplifier is sufficient; clean filtering of the signal matters more than raw power.
Where is the best place to mount the shaker?
Directly and rigidly on the wooden frame of the sofa, chair or riser so the force enters the structure without losses. Several transducers make sense on large sofas, each on its own channel or wired appropriately.
At 42.audio you get the BEYMA SK-07/T with all key data in the driver database. More drivers from this manufacturer: Atlas Beyma.
Thiele-Small parameters
| Total Q Qts | 1 |
|---|---|
| Equivalent volume Vas | 16.0 l |
Specifications
| Manufacturer | BEYMA |
| Category | Shaker / Transducer |
| Series | SK |
| Power handling (W) | 50 |
| Frequency from (Hz) | 20 |
| Frequency to (Hz) | 100 |