DIY Room Treatment Projects

[crazyBLUE]

Originally Posted by Big Daddy

They are 28" x 28". Did they make a difference? Yes, they did drastically. Am I completely satisfied? No, not yet. I changed the position of a couple and the sound changed a little.

I ran the Audyssey calibration program and I did not like the sound afterwards. It had increased the high frequencies to their maximum level and made the speakers shriek. I thought my ears were going to burn. I wanted to call the fire department.

I had to manually adjust everything with my good old Radio Shack SPL meter and test tones. I used the Velodyne subwoofer parametric equalizer and made the bass sound completely flat from 20Hz to 100Hz. I hated the results afterward. The bass became more refined and deeper, but you could hardly hear it.

After wasting several hours and running Audyssey and Velodyne sevral times and tweaking them to death, the sound is almost perfect. The point I am making is that you need to be patient and experiment. Your HT room is an audio lab. No Physics textbook can teach you that.

I do not disagree with SierraMikeBravo. He is correct. However, this is Blu-ray.com forum and not a college physics course. We are trying to help people to achieve better sound with minimum expense. Room treatment is a tricky subject. I believe my simple diagrams in Post #13 are far more useful than any Physics texbook on waves. You need to be more constructive in providing information. Perhaps, simple examples or links are helpful.

Despite all the negative comments, we managed to build subwoofer risers for less than $20 with drastic results. I am not a perfect judge, but my SPL meter doesn't lie when the sub output went higher by almost 10db after buiding two 10" risers for my Hsu subwoofers.

Liquidice, thanks for your support. I spent two months on A Guide to Subwoofers (Part II) thread alone. Read the comment by Sir Terrence in Post #9. He is an audio engineer and I believe he works for Disney. I don't get paid. My only reward is when a member tells me that he/she found the thread useful.

Madabb is also correct. I am half human and half machine. I agree that the members should do their own research and bring positive input to the forum.

Thanks Big Daddy ! That will put that figure at 5 on my shopping list !!
Now if you would send me you're credit card so I can pay for all this stuff I can start listening to music & my Blu's instead of the room !!