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  1. corner Helmholtz resonator

    Home Audio Acoustics
    Hi all, I’m thinking to a room treatment in a new chamber where I will soon move my two channel audio system. I would like to build an absorber for low frequency in a corner, just to hear (and measure) the difference before and after, and evaluate if continue on this way. I’m looking at...
  2. Helmoltz resonator

    Home Audio Acoustics
    :huh: Anyone knows a source for buying a reasonable priced helmoltz resonator around 50Hz anywhere in Europe? got a big fat mode, and have litlle time for DIY, regards
  3. Helmholtz resonator - Group Delay

    DIY Subwoofers - General Discussion
    After reading way to many white pages and making a lot of sawdust over many years, I think I am wrapping my head around this. Am I right in thinking that the Group Delay is a direct result of adding a Helmholtz resonator? Thus if one was to take Martin Kings transmission line electronic circuit...
  4. Questions about tuned Helmholts resonator

    Home Audio Acoustics
    Hi i just started to post and become active here ... i have a room with a strong 61hz mode so i m planning to make a tube helmholts resonator which is tuned for 61 hz. In ETF 5 software it was a calculator to set a port length and other parameters and i need a Q of 1 for it but the problem is...
  5. Panel Resonator vs broadband

    Home Audio Acoustics
    I need to reduce some nulls and peaks in my basement home theater. The room is an l-shaped room with an open stair to the rest of the house (cannot be closed off). I have my sub and speakers optimized after 8-10 hours of trial and error. Seriously, 8-10 hours, moved a few inches, measured...
  6. helmholtz resonator and questions about frequencies

    Home Audio Acoustics
    Hi, I have a "spike" of 38 hz in a room of 11X13X8 feet which has broadband absorption. I have 6 plastic containers of 20 litres each, these containers were once used for antifreeze storage. By using 1/2" MDF and making round tops for the plastic containers, I can then drill holes to...
  7. Adjustable Helmholtz Resonator

    Home Audio Acoustics
    I have a bunch of Sonotube left over from a sub project and I got an idea (but don't know if it would work). My thought is this - use it to build a helmholtz resonator to fix bass peaks in a room. It is my understanding that helmholtz resonators work at fairly specific frequencies and if I...