Daloc S30 – 50 dB Sound door in steel
Daloc’s top range of acoustic doors – for extreme sound insulation requirements.
Daloc S30 in the 50 dB version represents the top level in single doors for sound insulation. This is the solution for those who cannot accept that the sound door is the weakest point in the construction.
The door is often used in demanding professional environments, but is also an obvious choice for uncompromising high-end home cinemas.
Daloc is a top-class professional door manufacturer, and the S30 series is their most advanced steel acoustic door.
Important before ordering – read this carefully
🔹 Light opening = width × height
All dimensions stated apply to the light opening, i.e. finished hole dimensions in the wall in which the door (frame + door leaf) is installed.
These are not door leaf dimensions and not outer dimensions of the frame.
🔹 Width selection – important information
For technical reasons, the online store can only show 80-90 cm width in total.
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All heights except 210 cm:
➜ Preferred width(80 cm or 90 cm) must be specified in the comments field when ordering. -
210 cm height:
➜ Here the width can be selected directly in the online store.
Failure to specify the width will result in delayed order processing.
🔹 Left or right hinging – this is how it is understood
Hinging is defined as follows:
➡️ When you pull the door towards you, the hinges are either on the left or right side.
This is the correct industry definition, but also a common source of error.
Double sound door (tandem door)
The only thing in our range that attenuates more than S30 50 dB as a single door is a double sound door (tandem door) of the same type. This can be supplied on request.
Important to note:
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The dB scale is logarithmic – 50 + 50 dB is not summed
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Extra power depends on:
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the distance between the doors
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the design of the lock
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30 cm spacing provides better insulation than 10 cm
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Too small distance can cause vacuum effect and heavy door
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Acoustic panels on the inside of the lock further increase insulation
In practice, you can normally expect 60-70 dB of overall attenuation, approaching the level of a fully ProSilence-insulated wall.
Delivery and production
NB! ALL CUSTOM-MADE DOORS ARE SHIPPED DIRECTLY TO YOU. SHIPPING COST IS INCLUDED IN THE PRICE.
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Production time: 3-6 weeks
(depending on factory capacity at time of order) -
Each door is manufactured and calculated individually
Standard included in the delivery
Frame – type 41
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Steel frame
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Color: Black – NCS S9000-N
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Fixed alignment on the hinge side
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Adjustable frame sleeves (12 mm umbraco)
The frame is covered with insulation (not included) and sealed with sealant to achieve correct fire, sound and smoke tightness.
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Correct installation is essential to achieve the specified performance.
Recommended fasteners
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Concrete/masonry/wood studs:
Fischer FFS 7.5 × 72 (with or without 10 × 50 nylon plug) -
Steel studs:
Würth Zebra Pias 6.3 × 38
These are included in our complete installation kits, which are delivered with the order.
Other standard components
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Threshold: Steel
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Lockbox: Assa 310
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NB: Only lock case is included
– door handle and lock not included
For example, we recommend electronic locks from Yale, which can be purchased separately via ordinary builders’ merchants.
Sizes (light opening)
Available heights in the online store:
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200 cm
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210 cm
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220 cm
Available widths:
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80 cm
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90 cm
(must be specified in the comment field for all heights except 210 cm)
Other finishes
As with the T34, the Daloc S30 is available in a number of other finishes and customizations that cannot be configured in the online store, including
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alternative frame depths
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other surfaces
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project and special solutions
👉 Please contact us before ordering if you want something other than the standard version. Prices and orders are always confirmed before production.
In a nutshell
Daloc S30 50 dB is a reference door for sound insulation. To achieve the expected results, correct ordering and installation are crucial.
If you are unsure about dimensions, hinges or design, please contact us before ordering.






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