What's the frequency response of vinyl?

With the proper turntable set up, vinyl yields better bass than most CD set ups. For instance, my old VPI HW19 MkIII with and ET2 arm and an AT33PTG cartridge - nothing on the cutting edge have you - regularly beats the snot out of my Parasound C/BD 2000 transport AES/EBU connected Mark Levinson No.36 from top to bottom and especially on the bottom end. My CD setup sounds good, but I really like vinyl better at my house.

The bass response of vinyl is beyond what you're capable of hearing so you need not worry for your purposes. There are some practical difficulties in recording very low frequencies because of the size of the vibrations on the record groove. It could literally bounce the stylus out of the groove. The greater limitation will be your turntable and what limitation the recording engineer put on the recording, rather than the record itself. Actually, as an aside, record warp will produce a frequency around 8 HZ. You won't hear it but it can cause damage to your system.

"The bass response of vinyl is beyond what you're capable of hearing so you need not worry"

Oh how nice it would be for it to be that simple!

Ball park figure: ~22Hz - 26kHz. How far you go in actually retrieving this bandwidth and reproducing it -- assuming it's embedded in the grooves in the first place -- is another matter.

A phono cartridge has no problem reproducing signal well below 20 Hz, and that can be a big problem. Both the playback and recording turntables have some "rumble" (LF noise from the bearing) and LPs also can be warped. Many phono preamps have a deliberate roll off below 20 Hz so as to minimize this signal, which would needlessly use amplifier power and cause woofer cones to "pump" in and out with adverse effect on the higher frequencies. Most rumble is vertical groove modulation, and better rumble filters cut this component of the signal, starting at a higher frequency like 30 Hz, without drastic effect on the horizontal groove modulation signal. Little is lost when this type of rumble filter is used because records are usually cut without any LF vertical groove modulation because less-than-audiophile cartriges might hop right out of the groove. Another way of saying this is that LP bass is mono, which is certainly OK for people who use a single subwoofer.