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Chris, I used Sonnie Parker's mp3 files and the spreadsheet linked to his excellent BFD site. Using my laptop computer, I outputted the mp3 sine wave files directly to my sub. There were 21 frequencies in all: 16Hz, 18Hz, 20Hz, 22Hz, 25Hz, 28Hz, 31.5Hz, 36Hz, 40Hz, 45Hz, 50Hz, 56Hz, 63Hz...

Chris, Actually, it sounds pretty good! The dip at 45Hz is where my recessed light fixtures vibrate and this is probably my biggest complaint about the sound of my hometheater. Other than that I'm pretty satisfied and only did this graphing as an exercise. Thanks to all who responded. Jeff

Michael, My basic layout is shown below: I've had the sub up and running for about 2 weeks and I'm really impressed. Here is a thread I started showing the sub: http://www.hometheaterforum.com/htfo...threadid=68136 I agree about the toy thing. But I was really suprised that my graph...

Hi, I finished my DIY Adire Alignment vented Tempest sub a couple of weeks ago and thought I'd plot out my room response to it using a Radio Shack meter (with adjusted values) and some sine wave frequencies. What do you all think? I know I have some minor peaks and a general downward trend to...