Channel D SETA L User Manual

Congratulations on your purchase of a Seta phonograph preamplifier! The new, ground-breaking
Seta is a low noise, fully balanced design featuring an ultra-wide frequency bandwidth of up to 5 MHz
(Model L), unprecedented for a phono preamplifier. This provides you with the key to obtaining stunning,
three-dimensional music reproduction from your phonograph records. The Seta is designed to be used as a
front-end preamplifier for connecting to high resolution (192 kHz / 24 bit), balanced - input computer
audio interfaces. In conjunction with Channel D Pure Vinyl software, used for applying the RIAA phono
correction curve, the strengths of the latest, 21st century cutting-edge analog and digital technologies are
brought together, delivering superb, high definition, transparent vinyl playback.
For those audiophiles insisting on an all-analog signal path, an optional RIAA hardware correction feature
is available for a conventional, RIAA-corrected output signal. The Flat and RIAA outputs may be used
simultaneously (another unique feature), to support the best of the Analog and Digital worlds.
Getting Started
Please take the time to read this Installation and Use Guide, to familiarize yourself with the installation
and operation of the Seta.
Important: If the package you received from your shipper is below room temperature, please allow the
sealed inner carton containing the product to acclimate at room temperature for a few hours before
opening it, to avoid causing condensation on cold internal surfaces.
After unpacking, connect the provided external power supply to an AC power source and plug the barrel
connector into the power jack on the rear panel of the Seta. It will take the Seta at least one hour for the
internal circuitry and solid copper parts to become stabilized to normal operating temperature.
The following items are included. Please check the package and notify Channel D of any shortage:
• Seta Preamplifier, with Internal AGM Batteries Installed
• External DC power supply, 110 / 220 Volt Input, 2 Wire (Isolated) Input
• Precision Screwdriver
• 3/32"Allen L-key (Seta Plus)
The first time using your Seta, the internal battery should be fully recharged at least once before operating
the preamplifier (playing music). The Seta automatically disconnects the battery charging power supply
when a signal is detected. Therefore, if you would like to immediately use the Seta to play music,
charging should be manually locked in for at least two hours by selecting the Charge Lock front panel
button. This will cause the Charge Lock indicator to illuminate (as well as the Batt indicator, if the Seta
wasn't already charging). The Charge Lock mode also is useful for component burn-in or noncritical
listening.
It's safe to make signal connections to the Seta while the power supply is connected.
Pure Vinyl application software, if running on the computer, or otherwise mute or power down your
power amplifier(s) while making signal connections, to avoid generating noises which could damage
loudspeakers.
Siting the Preamplifier
To avoid premature degradation of the rechargeable batteries from higher than normal temperatures, do
not place the Seta where it may be exposed to direct sunlight. Also, do not place it on top of any
component which is a source of heat. For optimum battery life the Seta should be operated in an
environment with ambient temperatures between 40° F and 75° F. Lower temperatures within this range
will prolong battery life.
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Be sure to mute the