• Security doors Sound Plus
  • Security doors Sound Plus
  • Security doors Sound Plus

Sound Plus

The security door with acoustic insulation 40 dB

There is nothing better than a cosy, warm, safe and quiet house. That’s why Di.Bi. has focused its production on Sound line security doors.

Sound Plus security door offers the same anti-intrusion class 2 of the Poker 1 doors, with an acoustic insulation up to 40 dB, to allows the customer to find the comfort he likes in his house.

What makes Sound Plus a sound-proofing security door is hidden inside the door and between the frame and the subframe, and it can be used both as a security door for internal or external installation.

Sound Plus has the same aesthetical care for the details as Poker 1 model.


Finishing panels for security doors

Security for windows

Thermal insulation
1,55 W/m²K
Acoustic insulation
39-40 dB
Class 2
Air permeability
Class 3
Resistance to wind load
Class 5
Class 9
Security doors for external installation
Acoustic insulation notes
39 dB with external panel 4mm thick 40 dB with external panel 10mm thick
  1. Subframe made with 20/10 thick galvanized steel with 12 anchors to wall
  2. Frame made with 20/10 thick galvanized steel, painted brown Ral 8017 and complete with plastic covers, gasket and footers
  3. Adjustable hinges on 3 axes with brown hinge covers
  4. Doorleaf made of one galvanized steel sheets16/10 thick. Gasket in the perimeter of the leaf
  5. Inner reinforcement spar
  6. Thermal and acoustic insulation with rock wool (density about 120 kg/m3)
  7. 2 panels made of polyester fibre, placed in the locking system area, all along the bars
  8. Wide-angle peephole
  9. Security locking system with core with European cylinder with 1 master key + 5 keys with card equipped with a hardened steel drill-proof plate. Patented Rolly defender, drill-proof and dust-proof
  10. Opening limiter and inside service lock
  11. Lateral deadbolt
  12. Upper deadbolt bar
  13. Handle set in bronzed aluminium (inside handle + outside fixed knob)
  14. Acoustic weatherstrip bar or bottom rebate of the door threshold
  15. 5 fixed deadbolts on the hinge side

D-SMART Cablata

Il cilindro elettrico D-SMART è disponibile anche in versione cablata, diventando così una serratura elettro-meccanica. La porta si apre con chiave tradizionale, trasponder, pulsantiera interna da remoto, tastierino numerico e app da smartphone e tablet.  

Locking system with European cylinder 1+5

European cylinder locking system with 1 red master key + 5 black keys (1 master key for each cylinder) with card for key duplication. The lock is equipped with a service lock inside and it is protected inside by a hardened steel drill-proof plate. Outside, patented Rolly magnetic defender, drill-proof, dust-proof, with tear-proof base.

European cylinder Yale

European locking system with a set of 5 user keys. (outside: cylinder, inside: service lock with little knob).

Top security European Cylinder EVVA 3KS

3KSplus is the most resistant mechanical locking system, due to its unique, patented, springless operating principle. Unlike conventional cylinders, in 3KSplus the locking elements move along the curves on the key and are not driven against a spring force. The reversible key have a unique rounded tip and overlapping curve millings, that practically rules out key manipulation within the locking system. The additional coding also provides highest security. 3KS ensures picking and scanning protection,drilling and plug pulling protection. It's provided with 3 or 5 key plus a disposable cyclinder to change after installation.

High security European Cylinder EVVA ICS

ICS offers different locking technologies for high protection: the time-tested curve system, the durable length profi le and distinctive track system with internal recesses. It ensures anti-picking and scanning protection, drilling and plug pulling protection. It is produced in modular design and can be adapted to the door requirements directly on-site. The high-quality nickel silver alloy make the key durable and resistant. The concealed, inner recesses make unauthorised duplication of keys practically impossible. It's provided with 3 or 5 key plus a disposable cyclinder to change after installation.


cm W 80-85-90 x H 210


Push opening

Installation solutions

Complete file

Download the PDF with the technical drawings of all installation solutions of frames and subframes proposed by Di.Bi.

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Documents download

Price list
Products guarantee
Performances - Reg. EU 305/2011
Checklist for taking dimensions
  • Price list Sound 541,01 KB
    Price list of Sound DOWNLOAD
  • Steel Frames price list 2020 396,82 KB
    Steel Frames price list (Rev. September 2020) DOWNLOAD
  • Aluminium Frames price list 2014 229,33 KB
    Aluminium Frames price list 2014 DOWNLOAD
  • Guarantee for Di.Bi. products 25,95 KB
    Guarantee statement for all Di.Bi. products (rev. July 2018) DOWNLOAD
  • Form Installation Check 571,32 KB
    Form for the Installation Check - to be used after the installation DOWNLOAD
  • Certification Sound Plus - Anti-intrusion 214,52 KB
    Anti-intrusion certification for security door Sound Plus model DOWNLOAD
  • Certification Sound Plus - Acoustic insulation 605,93 KB
    Acoustic insulation certification for security door Sound Plusb model DOWNLOAD
  • Certification Sound Plus - Resistance to wind load 189,62 KB
    Resistance to wind load certification for security door model Sound Plus DOWNLOAD
  • Certification Sound Plus - Thermal insulation 379,68 KB
    Thermal insulation certification for security door Sound Plus model DOWNLOAD
  • Checklist for taking dimensions of security doors 2,34 MB
    Checklist for a proper procedure for taking dimensions of security doors (rev.2014-05-07) DOWNLOAD
Technical drawings
Instruction manuals
  • Technical drawings for Sound door leaf 1,86 MB
    Technical drawings for Sound Line Door Leaf, Frame and Subframe (in Italian). DOWNLOAD
  • Installation Instruction for Subframe without Angle Stiffeners 1,79 MB
    Installation Instruction for the Subframe without the Angle Stiffeners DOWNLOAD
  • Instruction manual for the installation of frames on 1 leaf security doors 1,70 MB
    Instruction manual for the installation of frames on subframes of 1 leaf Di.Bi. security doors (rev. 07/2020) DOWNLOAD
  • Assembly instructions for frame sol. B (with top window) 310,13 KB
  • Instruction manual for the installation and adjustment of security doors with regular hinges 1,22 MB
    Instruction manual for the installation and adjustment of Di.Bi. security doors with regular hinges (rev. 07/2020) DOWNLOAD
  • Instruction manual for security door handle kit 2,18 MB
    Instruction manual for Di.Bi. security doors handle kit (rev. 07/2020) DOWNLOAD

Catalogue download

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