TheOrganDoc wrote:My problem, with my "Big Shaker",
is that my amp does not have flat response down below "16' E" ,
so I have to switch amplifiers, to get the effect I desire !
(BTW, A "headphone amp will definitely not provide,
the power required for any Shaker")]
You need to check the specs for the amp you want to use for the shaker(s). Even some sub amps don't go down into the range that you are looking for, some even cutoff at 100 hz which is too high for the bass. The amp should go down to some where around 20 hz or so) even if not totally flat down there. Likewise the top freq you feed the shakers must be considered and compliment (in the case of either head phones or spkrs) their frequency response. You want the transition between the headphones or spkrs and the shakers (or subs) to be relatively even, not abrupt or you won't be satisfied. Some folks have said - audio - no big deal. Well it is if you want good results. As has been said many times, even when you consider pedal tones (as being low frequencies), there is considerable harmonic content in upper frequencies as well. Hence the need to make the transition that we mentioned as even and smooth as possible that is if want impressive results.
Another important consideration (aside from a low amp's freq response characteristic) is the fact that it takes quite a bit of power to (in the case of a spkr type sub) to move air at these ultra low frequencies. This is the "
feel that bass" effect. (And you know of my posts about the HouseWrecker system that if we want to believe the marketing hype, it states that the HouseWrecker can levitate a small rug off the floor at a distance of 3 ft away.. In the case of pucks or ButtKickers, they, too, have to move, well let's say the "occupier" of the organ bench proper.
BTW, speaking of silent, if you read Brett's announcement, you know the Forum will be silent after Dec 25 for a short time. We can likewise wish Brett, Martin D and all others involved in making this Forum happen the very best for these upcoming holidays and we, too, look forward to the New Year with Hauptwerk and all the many contributors who share with us on this Forum. Good Job(s) all.
Rgds,
Ed