Schatten UST-1 Series Pickups for Steel String Guitars
New Piezo Cable Under The Saddle Pickup
Available in one passive and two preamped models.
Introduced at the 2010 Winter NAMM show in Los Angeles, the New UST
Series of under the saddle steel string guitar pickups is now
available.
Featuring great sound and tremendous affordability,
this pickup is sure to become a favorite.
The UST Series utilizes a robust polymer
cable piezo element for a full, rich tone. This pickup is designed to
used with a preamp, either with our new Player endpin jack preamp or
with our new Mini Pre belt clipable preamp
or with one of our outboard Preamp-DI's.
We offer the UST-1 in passive format for those players that
already own a preamp, either on board or outboard.
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Details
You may add a magnetic pickup and have it feed passively
through the Player Preamp. The attachements to the circuit board
are shown by the 'Secondary Passive Pickup Pass Through (+) and
'Secondary Passive Pickup Pass Through (-) solder points.
Output from the Player Preamp would be through a stereo
cord with the preamped signal on the tip, the secondary passive
signal from the magnetic pickup on the ring, and the sleeve ground
shared by both pickups.
The pictures below show the circuit board of the Player Preamp that is used with the UST Active pickup systems. For more information view the Installation Instructions: UST-1 Player (passive) pdf UST-1A Player and UST-1A Plus 2 (active) pdf

Pictures

UST-1 Player (passive) with endpin jack

UST-1A Player (active) with Player Endpin Jack Preamp

UST-1A Plus 2 (active) with Player Endpin Jack Preamp and Thumbwheel Volume and Tone Controls
About Pickups and Amplification
Terminology
Passive Pickup - A piezo pickup.
Impedance - To simplify things as much as posssible we'll say that impedance refers to the range in which an amplifying device can 'hear' a pickup plugged into it.
Preamp - A device specifically designed for use with piezo pickups that increases the signal strength and lowers the impedance of a passive pickup.
Active Pickup - A piezo pickup with an attached preamp.
Microphone Preamp - a device that may be built into P.A.systems and mixers that is designed to work with microphones. These units will not generally work with passive pickups.
'Normal' Electric Guitar Amps: A passive pickup has an impedance of approximately 2 mega ohms (2 million ohms) which virtually all 'normal' electric guitar amps can generally handle without issue.
'Acoustic' Amps: may or may not require the use of a preamp with a pickup and that will depend upon whether or not there is a special built in preamp section to that amp that specifically allows for the choice in plugging in either a passive (non-preamped) or active (preamped) pickup. This choice is quite often in the form of pushbutton on the amp's control panel. Many acoustic amps show a selection that may indicate the choice of 'high impedance' and 'low impedance'.
Low impedance in these instances usually indicates that in this range the amp will handle an impedance of 1000 ohms or less - which will allow active pickups with preamps to be used.
High impedance in these instances may indicate an allowable impedance into the 2 or 3 mega ohm range - which will allow passive pickups to be used. Or it may indicate a maximum input impedance allowed of 20,000 ohms or less - which will handle magnetic electric guitar pickups but not passive pickups. You should carefully read the technical specifications of your acoustic amp in order to see what it will do.
P.A. Systems, Mixers: all of these units will require the use of a preamp between themselves and a passive pickup. Microphone preamps built into P.A.'s and mixers are not designed for use with passive pickups and will not work properly.
Computers: Due to the vagaries and variables inherent in the sound cards found in computers, the only thing that we can advise is that a preamp will almost certainly be necessary.

