Proficient BB-IWS10 Medium-Density Fiberboard Back Box for IWS105 Subwoofer

Deliver cleaner, more controlled bass where it matters most — behind the wall. The Proficient BB-IWS10 Medium-Density Fiberboard back box is an in-wall speaker enclosure engineered to isolate and optimize the IWS105 subwoofer (also compatible with IWS100), reducing translational energy transfer to adjacent walls and improving low-frequency clarity. Built from MDF and specifically tuned to the IWS105, this back box enhances bass response while minimizing rattles and vibration that can degrade audio or interfere with sensitive monitoring and surveillance environments. Designed to fit any standard 16" stud bay, the BB-IWS10 streamlines installation for integrators, installers and AV professionals working on residential theaters, commercial audio, paging or security audio projects. The robust enclosure protects the subwoofer and maintains consistent performance over time — a key benefit for mission-critical installations in security and monitoring systems. For a reliable, manufacturer-matched in-wall solution that improves bass integrity and reduces structure-borne noise, choose the Proficient BB-IWS10. Order today or contact your Proficient dealer to specify the back box for your next AV or surveillance audio installation.

• Reduces wall-to-wall vibration for clearer, tighter low-frequency performance
• Tuned MDF enclosure optimizes the IWS105 in-wall sub for consistent bass response
• Fits any standard 16" stud bay for fast, code-friendly retrofit and new-construction installs
• Durable medium-density fiberboard construction provides acoustic isolation and long service life
• Ideal for AV, paging and security/surveillance audio systems that require reliable low-frequency support