Features - Emotiva Stealth SP-1 User Manual

Stealth SP-1 Input Selector and Phono Preamp

Features

The Stealth SP-1 was designed to expand the analog capabilities of any stereo analog
preamp which has at least one available line level analog stereo input. When any of the
line level inputs on the SP-1 is selected, the signal from that input is routed directly to
the output via precision switching relays, which add virtually no distortion or noise to
the signal. When the Phono Input is selected, the signal is first amplified and equalized
by the SP-1's precision low noise phono preamp, and the output of the phono preamp
is then routed to the output.
The Stealth SP-1 was designed primarily as a companion device to our Stealth DC-1
DAC. When the outputs of the SP-1 are connected to the analog inputs on the
DC-1, the SP-1 expands the analog capabilities of the DC-1 from a single analog input
to three line level analog inputs and a precision, very high quality, phono input.
Since the SP-1 does not include its own volume control, it must always be used with
another device which provides some sort of level control. The SP-1 can be used with
our own DC-1, or with any other preamp, integrated amplifier, or reciever with an
available stereo line level analog input, or even with our Control Freak passive volume
control.
When used together, the Stealth SP-1 and DC-1 comprise a very flexible high quality
stereo preamplifier, with four high quality analog inputs (including a phono input), five
high performance digital inputs, balanced and unbalanced analog audio outputs, and a
full function remote control.
Features of the SP-1 itself include:
Three relay controlled line level analog inputs. Precision switching relays connect
the selected line level input on the SP-1 directly to the output, and introduce virtually
no noise or distortion.
Precision, high quality phono preamp. The phono preamp on the SP-1 uses the
same circuitry as the phono preamps in our other flagship gear, and offers very low
noise and distortion, precise adherence to the RIAA standard, switchable gain to
accommodate both moving coil and moving magnet cartridges, and user-selectable
load impedance for the moving coil input.
Universal line voltage support. The SP-1 can be operated on any line voltage
between 115 VAC and 230 VAC, at 50 Hz or 60 Hz, and will automatically detect and
switch to the correct voltage.
Solid steel case. The solid steel case on the Stealth SP-1 provides excellent noise
shielding, protection from mechanical damage, and a solid "no nonsense" feel.
Convenient 1U half-width case with "Stealth" styling. The Stealth SP-1 has a
convenient half-rack width form factor, which allows two units to be placed side by side
on a standard rack shelf, and makes it easy to install the SP-1 in a small audio rack or
next to (or on top of) a computer.
High quality construction. Inside, the SP-1 uses four layer FR4 circuit boards,
precision film resistors, and other top quality parts to ensure years of trouble-free
operation.
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