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Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more

Sound Insulation
Two parameters describe sound insulation; Dw and Rw. Dw is the insulation between rooms. Rw is the lab-tested insulation of a wall/floor...more
Part E
Resistance of the Passage of Sound

Grassinton - DEC - 01924 578 029
The office that covers this area is: Wakefield
Phone Number: 01924 578 029 Email: grassinton@e2consultants.co.uk
Our other services include:
DEC can also be known as:
Display Energy Certificate,


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Company No. 06728970
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