Urban M3³ – workplace box for 2 people

1. Improved acoustics & sound insulation

• optimized multi-layer wall structure
• further improved sound absorption in the interior
• quiet, concentrated working and conversation atmosphere
• ideal for meetings, workshops & video conferences

Result: Less noise, high speech intelligibility – even with several people

2. Significantly quieter and more efficient ventilation

• newly developed ventilation system
• even airflow throughout the room
• complete air exchange approximately every 2 minutes

Result: pleasant room climate without noticeable fan noise

3. Higher quality materials & sturdy construction

• Aluminum frame ≥ 1.5mm
• additional powder-coated steel panels (1.0mm)
• high stability even with larger room volumes

Result: Durable, high-quality, professional – designed for continuous use

4. New design & configuration options

• new exterior colors and interior colors for acoustic panels
• selectable Frame shapes (square, round, flattened)

5. Smart Plus Glass – thought ahead

• continue 32 ± 3 dB sound insulation
• optional with switchable smart glass for privacy at the touch of a button

6. Barrier-free meeting boxes – Urban-Line 3rd generation

• Interpretation according to the central requirements of DIN 18040
• available as M1³ barrier-free, L1³ barrier-free and L2³ barrier-free

Sound insulation (measured according to the latest ISO 23351-1 standard):

• Plus: 32±3 dB (ISO Class A)
  • Maximum discretion for team meetings and confidential conversations.

(Important: The switchable “Smart Glass” option automatically includes the best possible plus sound insulation).

💡 Good to know: How to read our acoustic values

• Certified standards: Tested according to ISO 23351-1.
• The masking effect: A normal office has a basic noise level of around 45 dB. If our box attenuates a conversation to 30 dB, the room absorbs the remaining noise - inaudible to the team outside.

Dimensions

• Outside: 2150 × 1350 × 2185mm
• Inside: 2003 × 1202 × 2005mm

Weight

• Closed back wall (acoustic panel): 510kg
• Split back wall (acoustic panel + glass): 482kg
• 2x glass wall (front & back): 450kg

Glass

• 6 mm ESG safety glass

Electricity & Certification

• 110-220V/50Hz
• Certification: CE compliant to EU standards
• WEEE reg. no.: Registration currently in the new application process
• Fire protection: Panels Class A / Carpet B1 (flame retardant)

Guarantee

• 5 years on frame & construction
• 1 year on electrical & interior

Fire protection (certified safety)

The Urban-Line meets the highest international fire protection standards for use in modern office environments and public buildings:

• Acoustic panels (walls): Certified to ASTM E84 Class A (highest category). With a Flame Spread Index of 15 and a Smoke Developed Index of 40, they correspond to the German classification "flame retardant".
• Floor covering (carpet): Certified to GB 8624-2012 Class B1 (C). This makes the carpet official flame retardant classified.

Compliance & Environment

• CE conformity: The SoSilent Urban M3³ complies with all relevant European guidelines regarding safety, health protection and environmental protection.
• WEEE registration (ElektroG): We fully meet our product responsibility. Registration for the current generation of devices is currently in the new application process to ensure complete compliance with the Electrical Act.

We will be happy to provide you with detailed test reports (SGS / National Carpet Quality Supervision) upon request by email or via our contact form.

• Various table and seating configurations possible:
  • 2x classic sofa
  • 2x modern sofa
  • 1x normal table
  • 1x table for glass back wall
• ideal for meetings, workshops and longer video conferences

Note: The price shown does not include interior fittings. This can be supplemented individually.

Exterior colors

• White / Black / Individual RAL color

Interior colors – acoustic panels

• Silver gray (default), gray, red, orange, yellow, light brown
• Material: High-density acoustic polyester (fire protection: Class A / flame retardant)

floor

• Carpet in Anthracite (Fire protection: B1 / flame retardant)

Glass options

• Plus – 32 ± 3 dB / SmartPlus with switchable smart glass

Wall configuration

• Closed back wall: Maximum sound insulation, shielded feeling of space.
• Split back wall: Combination of acoustics and transparency.
• 2× glass wall (front & back): Maximum transparency and brightness.

Frame shape

• Square (Standard) / Round / Flattened

• Meeting box for 2-3 people / retreat for teamwork
• Video conferences & hybrid meetings / creative and workshop room