Front view of the WhisperRoom MDL 4284 S single-wall sound isolation booth with the door open, showing interior acoustic foam panels, dual overhead LED lighting, and a large wall window on the right side.
Exterior view of the WhisperRoom MDL 4284 S single-wall sound isolation booth, shown with the solid door closed and a small window revealing interior acoustic foam panels and overhead lighting.
WhisperRoom MDL 4284 S single-wall sound booth shown from a side angle with the door open.
Rear exterior of the WhisperRoom MDL 4284 S soundproof booth featuring two ventilated silencer units, modular acoustic wall panels, and a portable single-wall design for professional recording and testing environments.
MDL 4284 S

MDL 4284 S

$8,850.00
$8,850.00
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DETAILS

The MDL 4284 S is a single-wall WhisperRoom® sound isolation booth designed to provide reliable noise reduction with a comfortable 3.5 ft × 7 ft footprint. Its extended interior length makes it ideal for applications requiring extra room for movement, equipment, or multi-use workflows, including recording, practice, testing, content creation, broadcasting, and controlled work sessions in residential, educational, and commercial environments.

Built with WhisperRoom’s proven modular panel system, the 4284 S delivers dependable acoustic performance, long-term durability, and the flexibility to fit into a wide range of room layouts. Its larger interior offers increased comfort compared to compact formats, giving users more space for desks, instruments, or additional acoustic treatment while maintaining the portability and non-permanent construction WhisperRoom is known for.

WhisperRoom booths have been trusted in thousands of homes, schools, studios, hospitals, and corporate facilities for over 35 years, delivering consistent sound control and professional reliability.

The MDL 4284 S is an excellent choice for users who need moderate isolation, extra interior room, and a versatile workspace that can evolve with their projects over time.

Key Features

  • Single-wall isolation for environments where moderate sound control is appropriate

  • Expanded 3.5 ft by 7 ft layout for increased working space

  • Modular panel system allowing flexible placement of doors, windows, and ventilation components

  • Fully upgradeable to an Enhanced (double-wall) configuration for increased isolation performance

  • Compatible with a wide range of Options and Accessories for specialized applications

  • Non-permanent construction that can be disassembled, relocated, or reconfigured as needed

  • Straightforward assembly with individually boxed components and a clear, modular process

  • Dual integrated ventilation systems to maintain airflow during extended use

  • Four cable passages for clean and flexible equipment routing

  • Includes four 2 ft × 4 ft acoustic foam sheets for initial interior treatment

Specifications

Feature Detail
Exterior Dimensions 3'8" × 7'2" × 6'11"
Interior Dimensions 3'4" × 6'10" × 6'8"
Weight 875 lbs
Door Window 12" × 30"
Ventilation Systems 2
Cable Passages 4
Included Acoustic Treatment (4) 2' × 4' sheets
Floor Space 24.5 sq ft
Ventilation Clearance Ventilation adds approximately 5.5"

Shipping and Assembly

All components are shipped individually boxed for easier handling and placement. Most orders are processed and ready to ship within 48 hours. Freight charges are calculated during checkout. The booth assembles with standard tools and is designed to be set up in a short period of time.

Important Notes

Some photos show optional accessories such as interior lighting or additional window configurations. These items are not included in the base model.
Manufactured in the USA.