BST
Passive 15-inch subwoofer with a 4-ohm impedance and an Advanced Transmission Line cabinet, made to sit under PMC QB1 or QB1XBD main monitors. It suits large two-channel, multichannel and cinema-grade monitoring rooms that need deep, high-SPL bass and need an external amplifier.
- Passive 15" subwoofer, 7.4" voice coil
- Response 17Hz – 300Hz (-3dB)
- Max continuous SPL of 120dB
- 2500W RMS continuous power handling
- ATL cabinet with Laminair X vent
- Freestanding, in-wall or soffit mounting
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The BST is a passive subwoofer built around a 15-inch drive unit with a 7.4-inch voice coil. The cabinet uses an Advanced Transmission Line with an effective length of 4.3 m, extending response down to 17 Hz. The driver allows excursion of ±20 mm linear and ±40 mm mechanical, and the unit is rated for 2500 W RMS continuous power. Maximum continuous SPL is 120 dB, measured in half space.
The vent exit carries Laminair X airflow control, which is intended to reduce turbulence and air noise and lower harmonic distortion by up to 3 dB. The front, top, bottom and back baffles are 36 mm thick, and the side panels are braced by the transmission-line structure. Extra-long Laminair X fins ahead of the vent exit add further reinforcement.
Being passive, the BST needs a separate amplifier delivering around 2500 W RMS continuous into 4 ohms. It can be used freestanding, in-wall or soffit-mounted, and works with two-channel or multichannel PMC systems. A line drawing is available as a download.
Spécifications
- Marque
- PMC
- Modèle
- BST
- Catégorie
- Studio › Enceintes de monitoring
Audio
- Drive unit
- 15” drive unit with 7.4” voice coil
- Linear Xmax
- ±20mm
- Xmech
- ±40mm
- Effective ATL length
- 4.3m
- Impedance
- 4 Ohms
- Frequency response
- 17Hz – 300Hz (-3dB @1m half space, on axis)
- Sensitivity
- 84dB 2.83V 1m
- Max continuous SPL
- 120dB (measured in 1/2 space, ground plane)
Power
- Power handling
- 2500W RMS continuous
- Recommended amp power
- 2500W RMS continuous
- Type
- Passive
Physical
- Height
- 432mm
- Width
- 1092mm
- Depth
- 808mm
- Weight
- 110kg
- Baffle thickness
- 36mm (front, top, bottom, back)
- Mounting options
- Freestanding, in-wall, soffit-mounted
Software
- Downloads
- BST-V2 Line Drawings (80 KB)