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Old 12-12-2018, 12:31 AM
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Join Date: Dec 2018
Posts: 15

Originally Posted by guitaniac View Post
I highly recommend this passive undersaddle pickup.

The caveat is that your Tonewood amp would probably need an input impedance of at least 2 or 3Mohms for best results. Some of the passive undersaddle pickups out there require a 10 Mohm input impedance for best results.

I took a quick look at the Tonewood Amp manual but didn't see a reference to input impedance. Its probably in the neighborhood of 1Mohm if its designed to be used with mag pickups. The OTSS pickup will work with that, but it might sound a bit trebly. (You could inquire about that to OTSS's pickup designer, David Enke.)

What's puzzling me is why you believe a passive undersaddle pickup would be less susceptable to feedback than an active system. Undersaddle pickups in general are inherently a bit more feedback prone than magnetic pickups. If feedback is an issue with the Tonewood amp, that may be why its bundled with a magnetic pickup.

An advantage of the Pure Mini would be that it works well with an input impedance of 1Mohm or as little as half that in some cases. With respect to feedback issues, however, it would be more troublesome than a magnetic pickup or an undersaddle pickup.

By the way, the issue with the Baggs M1 or Baggs M80 is not that they are active pickups (in some cases). They are a little more feedback prone than a pure mag pickup because they are hybrid pickups which respond to soundboard vibrations as well as string vibrations.

I donít really know much about pickups or the physics of their capabilities etc. the reason I was thinking a passive is because the active LRBaggs M80 had a major feedback issue. Also I have another guitar with a Fishman under saddle with an active preamp and same problem. However when I use a soundhole mounted Fishman passive pickup ( Neo D ) it works great with the tonewood amp. I just donít like a pickup mounted in the sound hole because itís kind of an interference for finger style playing, at least for me it is.

Just donít want to glue a K and K mini on my guitar and find out it has feedback issues with the tonewood amp also.
Martin 000-15M
Yamaha LL16ARE
Martin Dreadnought Jr
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