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Originally Posted by DanDan  Yes indeed Ethan, direct compartive tests in a real room would be very welcome.
I would not hold LAB testing in higher esteem than that. LF measurements are notoriously unreliable, even in LABS. However your repeated wishes for such tests kinda cast a shadow on those of us that are happy enough with existing tests showing the trends. e.g. here we see thicker panels and more fill in the corner increasing absorption. Intuitively true too IMHO Acoustics Forum • View topic - Studiotips Corner Absorber
I reduced a 34 Hz mode from 1.3 Seconds to 600mS or so using only three SuperChunks. Real world room, Dr. Dan testing. That must count for something.
DD |
I think there is a lot to say about normal testing but have always felt that lab testing is still the best way to go.
As far as super chunks vs 4" panel our 244 at 50 hz tested at 4.65 sabins while our Tri Trap (kind of a super chunk) tested at 6.53 sabins. Check my math but that is around 30% better. Keep in mind though that our 244 has a 1.5" spacer on the back which that alone will put the face further into the room which will help absorb even better. I have seen the same testing (at riverbank) of just normal 4" 703 straddling and the Tri Trap (super chunk) was around 3 times better. It really is still all up in the air but it is a safe bet that it will work MUCH better on the lower frequencies.