📞 Call us for a free consultation! 520–392–9486, 8am – 6pm / Log in or Sign up / Contact
logo for room acoustics forum showing a waveform within a circle and the title of the forum
Avatar
Please consider registering
Guest
Search
Forum Scope


Match



Forum Options



Minimum search word length is 3 characters - maximum search word length is 84 characters
Register Lost password?
sp_Feed sp_TopicIcon
Perforated CCP vs carbon foam
sp_NewTopic Add Topic
Avatar
JD
Guest
Guests
1
June 15, 2018 - 9:58 am
sp_Permalink sp_Print sp_QuotePost

Dennis- for a given 2” depth panel, am I correct in thinking the perforated product over more absorption over an extended frequency range BUT a similar slope to the product (ie equally gradual ?) if so, wouldn’t the ceilin panel have applicability in vertical areas (walls ) as well ? I infer the only downside is it cannot be covered in fabric, but you allude to painting it (if so what paint is recommended, and codes that not change its absorptive characteristics ?)

Avatar
Chief Acoustics Engineer
Forum Posts: 387
Member Since:
August 12, 2013
sp_UserOfflineSmall Offline
2
June 15, 2018 - 10:02 am
sp_Permalink sp_Print sp_QuotePost

JD, Foam is a limp mass treatment technology. When you place it in a box with a perforated board (peg board) you change it from a limp mass to a perforated absorber . This lowers the resonant frequency, so the unit goes lower; 90 Hz. The foam starts at 125 Hz.

Forum Timezone: America/Los_Angeles
Most Users Ever Online: 31
Currently Online:
1
Guest(s)
Currently Browsing this Page:
1 Guest(s)
Forum Stats:
Groups: 4
Forums: 10
Topics: 357
Posts: 991

 

Member Stats:
Guest Posters: 23
Members: 14384
Moderators: 0
Admins: 2
Administrators: admin, Dennis Foley
FREE ROOM ANALYSIS
Call Us 520–392–9486
100% Money Back Guarantee