FWIW, the VTC may appear to be somewhat trivial; but, IME, that control is worth it’s weight in gold. Here’s why: in the larger spectrum of tones available with the Sadowsky preamp, you get a lot of higher freqs, which though useful for certain tones, can create the impression of being too “modern.” Since so many important bass tones are “old school,” having the VTC lets you get those as well. Extremely important and effective, if apparently trivial. Which it isn’t. I think quite a few Sadowsky players would agree with this as being consensus.
So, that abbreviated preamp is really aimed at basses that have some kind of collector value; and where the player may want a reversibly swapable preamp on a collectible passive bass. If your instrument is not a collector piece and you gig it, I would strongly recommend the regular onboard, bite the bullet, and drill and route as needed. Great luthiers, like Pat Wilkins, can do this for very reasonable cost, and it will be done right. Here are my two “Fendowsky’s:”
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