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Double Bass scritchy scratchy piezo sound - URB pickup HELP!

Hi - I've been playing electric fretted n fretless for many years, recently started playing standup again. Got a "decent" URB - Christopher's Workshop Busetto style - and some good amps/cabs - Acoustic Image, TC Electronics RH450, Bergantino and Aguilar cabs. I recently bought the Radial PZ Pre, love the way it works.

I currently have a Fishman Full Circle on my bass, mounted "threads up" on the bass side of the bridge, installed by a local luthier.

I want to get a warmer, more "organic" sound than I'm currently getting and the main culprit seems to be the pickup. Over the years I've been pretty mindful about choosing gear that's "hi-fi yet warm" and I work pretty darned hard at getting a tone from each of my instruments that is clear and full yet not harsh. But I haven't yet found a good balance with the URB.

This is my first time having any instrument with a piezo pickup and I feel like I'm spending all my time trying to dial out the scritchy, scratchy sound of the pickup. It's that same sound that you hear if you take a piece of notebook paper and wad it up. It's the same sound I hear if I have the bass plugged in and I run my fingers over the bridge or along the top of the body near the bridge. The Full Circle is picking up WAY too much of the extraneous stuff, not enough of the fundamentals for my taste.

I know my way around a parametric and I've got some pretty effective EQ and filtering between the PZ Pre and the EQ on the amps. But even so, there's only so much you can notch out before the sound of the instrument starts to get muffled. I don't want to EQ the thing to death! It's a very warm sounding bass un-amplified.

So I'm wondering, can you guys recommend some URB pickups that aren't so harsh sounding? Or perhaps some of you are using the Full Circle and have it installed "threads down" and can tell me if that makes a positive difference?

Thanks much.
 
Before you change out the Fishman Full circle, there are two things to try, according to page 2 of the owner's manual, to get more of a "body" sound with that particular pickup: 1) flip the pickup so it is against the lower side of the bridge. This will entail a luthier reversing the studs on your adjustible bridge, and 2) the rotation of the adjuster in relation to the strings will affect "round" verses "dry" tone.

Link Removed
 
Tim - you asked about the input impedance - 10 meg ohm w preamp piezo buffer engaged. As I understand it, the preamp I'm using is optimized for piezo pickups. Here's a link to the Radial website page about this preamp:

http://www.tonebone.com/tb-pzpre-features.htm

I'm fairly confident that the issue isn't with the preamp. For what it's worth, I've had this pickup on my URB for over a year now and have had the opportunity to try it out in different settings, in studio and with several different amps/preamps: always the same harsh tonal coloration.

But I'm an experienced beginner here and I'm wide open to hearing of other's experiences with URB pickups, definitely appreciate anything you have to offer.

iiipopes - thanks for that link. I have the Full Circle manual and, truth be told, I am perplexed by it. It says:

"When you mount the Full Circle “threads up,” the hot side of the pickup faces the body of the bass. You’ll get a bit more woody acoustic tone this way, with a rounded attack and less “edge”

My threads are up, yet when I tap above and below the pickup (adjuster wheel) it is much louder on the top than on the side facing the bass. The "hot" side of the pickup seems to be opposite what it's telling me in the manual...

I would love to hear from any other Full Circle users regarding this.

Hey. Tim and iiipopes, thanks very much for responding.