Acoustic Door System
TORDRIX EchoBlock Plus
Silence Engineered. Performance Delivered.
TORDRIX EchoBlock Plus is a high-performance acoustic door system designed for studios, hospitals, conference rooms, and noise-sensitive environments. Featuring a precision-sealed edge system and high-density mineral wool core, it delivers superior sound insulation with STC ratings up to 52 and noise reduction up to 45 dB — ensuring undisturbed environments where acoustic control is critical.
Acoustically tested. Precision sealed. Engineered for silence.

Key Advantages
Why TORDRIX EchoBlock Plus?
EchoBlock Plus combines advanced acoustic engineering with durable construction to deliver measurable sound insulation in environments where noise control is essential.
STC Rating Up to 52
Achieves Sound Transmission Class ratings up to 52, significantly reducing airborne noise transfer between adjacent spaces.
Up to 45 dB Noise Reduction
High-density mineral wool core and multi-layer construction deliver measurable noise attenuation across a broad frequency range.
Precision-Sealed Edge System
Compression seals on all four edges eliminate acoustic leakage through door-to-frame gaps — the primary path for sound transmission.
Multi-Layer Composite Construction
Asymmetric steel skins with a high-density mineral wool core create a mass-damping system that absorbs and blocks sound energy.
Heavy-Duty Steel Frame
Robust frame construction ensures structural rigidity, preventing vibration-induced sound flanking through the door assembly.
Acoustic Vision Panels
Double-glazed acoustic vision panels maintain sound insulation while providing visibility — ideal for studios and observation rooms.
Architectural Finish Options
Available in RAL powder-coated finishes, wood-grain laminates, and stainless steel cladding for seamless interior integration.
Adjustable Threshold Seal
Automatic drop-down threshold seal activates on door closure, sealing the bottom gap without impeding door operation.
Applications & Industry Use Cases
Where EchoBlock Plus Performs Best
EchoBlock Plus is engineered for environments where sound isolation is critical to operational function, patient recovery, or acoustic quality.
Recording & Broadcast Studios
High-STC doors for vocal booths, control rooms, and live recording spaces requiring precise acoustic isolation.
Hospitals & Healthcare
Acoustic doors for ICUs, patient wards, consultation rooms, and MRI suites where noise impacts patient recovery.
Corporate Offices
Sound-insulated doors for boardrooms, executive offices, and meeting rooms in open-plan commercial buildings.
Educational Institutions
Acoustic separation for lecture halls, music rooms, libraries, and examination halls.
Hotels & Hospitality
Sound-controlled guest room doors, banquet hall entries, and spa facility doors for premium guest experience.
Industrial & Testing Labs
Acoustic enclosure doors for NVH testing labs, anechoic chambers, and noise-sensitive research facilities.
Technical Specifications
Acoustic Engineering with Measurable Performance
EchoBlock Plus doors are designed and tested for quantifiable sound insulation, using high-mass construction and precision sealing to deliver reliable acoustic performance.
Material of Construction
Galvanized Steel (GI)
Optional Configuration
Stainless Steel 304
Frame Thickness
1.6 mm
Door Leaf (Shutter)
1.0 mm (per skin)
Door Leaf Thickness
54 mm / 65 mm (STC rating dependent)
Core Material
High-Density Mineral Wool
Acoustically optimized mineral wool with density of 96–120 kg/m³ for maximum sound absorption across frequency ranges.
Hardware & Cleanroom Accessories
- Heavy-Duty Hinges (SS 304)
- Mortise Lock with Silent Latch
- Overhead Door Closer (EN 1154)
- EPDM Compression Seals (4-sided)
- Automatic Drop-Down Threshold Seal
- Acoustic Vision Panel (optional)
- Lever Handle Set
Double-glazed acoustic vision panels with air gap for maintained STC performance.
Standard Door Sizes
Single Door
- 900 × 2100 mm
- 1000 × 2100 mm
- 1200 × 2100 mm
- 900 × 2400 mm
- 1200 × 2400 mm
Double Door
- 1500 × 2100 mm
- 1800 × 2100 mm
- 2000 × 2100 mm
- 1800 × 2400 mm
- 2400 × 2400 mm
Custom sizes available for studio, healthcare, and specialized acoustic enclosure projects.
Colour Options (RAL Finishes)
RAL 9001
Cream White
#FDF4E3
RAL 9002
Grey White
#E7EBDA
RAL 7035
Light Grey
#D7D7D7
RAL 7040
Window Grey
#9DA1AA
RAL 9005
Jet Black
#0A0A0E
RAL 5010
Gentian Blue
#0E518D
Custom RAL colours and wood-grain laminate finishes available for interior design specifications.
Materials & Performance
Door Materials
- Galvanized Steel Frame & Leaf
- High-Density Mineral Wool Core
- EPDM Compression Seals
Product Gallery
EchoBlock Plus in Detail
Explore detailed views of the product including construction, hardware, finishes, and installed environments.






Performance Comparison
How EchoBlock Plus Stands Out
| Feature | EchoBlock Plus | Conventional Door |
|---|---|---|
| Sound Insulation | STC up to 52 / up to 45 dB reduction | STC 20–25 (minimal insulation) |
| Edge Sealing | 4-sided EPDM compression seals + drop-down seal | No acoustic sealing |
| Core Construction | High-density mineral wool (96–120 kg/m³) | Hollow or low-density fill |
| Vision Panel | Double-glazed acoustic panel option | Single-pane glass (sound leak) |
| Threshold | Automatic drop-down acoustic seal | Open gap or rubber strip |
Acoustic performance values based on laboratory testing conditions. Field performance may vary based on wall construction and installation quality.
Architect & Specifier Guide
Designed for Acoustic Consultants, Architects & MEP Engineers
EchoBlock Plus is specified in projects where measurable sound insulation is a design requirement — from recording studios to hospital quiet zones.
- STC-rated acoustic doors for noise-sensitive environments
- Precision 4-sided seal system eliminating acoustic leakage
- Double-glazed vision panels maintaining acoustic integrity
- Compatible with access control and BMS integration
- Available in multiple finishes for interior design specifications
Acoustic test reports, STC data, and technical specification sheets available for project planning.
Product Brochure
Access detailed specifications, drawings, and installation guidelines for your project.
Product Information
Frequently Asked Questions
Common questions about TORDRIX EchoBlock Plus
Engineer Silence with EchoBlock Plus
Specify TORDRIX EchoBlock Plus for environments where acoustic control is essential — from studios and hospitals to corporate boardrooms and research facilities.
Our acoustic engineering team responds within 24 hours with STC data, test reports, and project-specific recommendations.