How much LF info on LPs?

How about keeping the stylus in the groove with the kind of excursion required for deep bass at real volumes? The cd has less dynamic range than an lp? That statement is surely based on perceived dynamic range through casual listening. Insofar as drums not being a sine wave is concerned, please elaborate. I actually believed that it was a all a sine wave at any given moment in time which was the total of all the sounds being reproduced, whether drums, kettles or Stradivari. Then again, I come from a time long ago and a place far away. I seek enlightenment.

Euh, boy. Don't let facts get in the way of a good story. The analog LP is a perfect source. Nothing can touch it. Every recording available is a flat, clean, noise-free pressing, does not deteriorate with age and does faithfully reproduce 7hz (to 25Khz, an upper range tested by human ears no doubt) or, as someone else put it, an unbelievable amount of bass. The other way of reproducing music is a conspiracy from hateful, deaf, nasty, large corporations only thinking of themselves and out to rid the world of the only natural source of high definition sound reproduction: the non-compromised analog lp. There is not one aspect of the other way of doing things that is remotely close to the vinyl lp. You name it: bass, treble, mid-range, definition, resolution, noise, dynamic range etc. And if one number should ever be tested properly (which is an impossibility, as you know) and come out better, well it simply is too high (or low, depends) and anything more (or less, depends) you don't need and detracts from a musical presentation. Now if anyone hss actually believable data on this, let's hear it. The fear induced by the original poster is that he is trying to find fault with the analog lp and the bass thing is just the thin edge of the wedge. Better stop this dead in its tracks and come out with answers that have no relationship with the real world. When is the last time you heard 7Hz through your speakers from an lp, or anything else for that matter?

Leaving aside the theoretical outer limits of vinyl's frequency range as proposed by TWL, which are one part wishful thinking to two parts religious belief, I would venture to say that there is enough low frequency information on most, if not all lps, to make having a speaker system with good deep bass response worth your while. Check out a recent thread where the issue of sacrificing deep bass response for perceived benefits elsewhere (notably the mid-range) was discussed. IMHO you can have speakers with both at very decent prices, you just don't get to run with the status seekers, that's all. Keep Canada green, buy Canadian speakers!