Below 20 HZ Notes/Instruments


What are the music CDs and Music Instruments that have or produce deep notes under 20 hz? Want to set and tune the new REL subwoofer I just bought that is intended to supplement my 2 channel system. My main speakers are full range and goes flat up to 21 HZ ( Dunlavy V's in my room ).
e.g Pipe organ goes way under 20 Hz.

Appreciate your responses in advance.
nilthepill
I have stereo rel subs like suggested by Nilthepill and if it is finicially possible for you I would recommend it. Stereo subs are amazing and it has benefits like clearer and deeper soundstage. Better seperation and of course a ton more bass. I was amazed on how much it cleaned my sound stage up.

Seandtaylor. You could be right. The dealer that sold me the Rel, who has never steared me wrong, told me not to put it in the corner and to put it exactly where you have yours. Sumiko claims that Rel is designed not to sound boomy in the corner. I also have a different model but Im not sure if that makes a difference.

I did find that it was clearer in the corner but maybe that has something to do with the room too. Im not sure.

I know you just cant throw it in the corner and you have to try different distances and even try turing the Rel the other way. Sumiko told me to put the Rel tight in the corner and with a continous 20 hz signal back it out an inch at a time until it gets clear and then when it just starts to get boomy again back it up an inch.
I was persuing the Dunlavy Tower subwoofers option futhermore. ( They have info on their web site- spec and description summary and some owner systems). The description mostly talk about the bass notes that can be heard from the movies. The built in cross-over 20-100 Hz tuned similar to the V's and that the DTS's should be placed right next to the V's. No mention of music! I am skeptical about musical merit of this arrangement. Of course I will have to call them tommorow to find out more. If this works, man that would be one heck of a stereo!!!
Even if you cross over at 21 Hz you will still tend to blurr the imact of the SC-V's on music. The ears sensitivity increases enormously as the tone goes from 21 to 42 to 63 to 84 based on the Fletche Munson curves. This effect will be magnified by half wave length standing wave room modes.

You didn't say what kind of room treatment and placement you have but it also takes very careful placement to not just load the room. I used a RTA to first position the speakers and then the Sigtech to align them for very smooth low bass. You can easily ear the difference on good organ and electronica recordings.

If you just want the explosions to jolt your house, these niceties don't really matter
You might want to check out this list of "Top 30 Bass CD's"

http://www.oakland.edu/~djcarlst/basscds.htm
The human brain is unable to recognize the directional source of frequencies below approximately 100-150 Hz, (according to my M&K owner's manual.) This would make "stereo" subwoofer use unnecessary. Experiment with your corners for placement and ease your cutoff as low as possible over time. It is easy to think you really need to "hear" your subwoofer when you first get it. Give it time, you will love it. Happy listening. Charlie