Long recognized as a central component in superb yet cost-
effective music systems, the integrated amplier’s job has
evolved substantially as many music-lovers have migrated
to digital sources. The RA-1570 is perhaps one of the best
examples of melding proven analog design with the most
musical digital circuits to bring all of your sources to life
with surprising, even surpassing, delity.
As are many Rotel ampliers, the RA-1570’s circuitry draws
on a high capacity power supply based on a Rotel custom
designed and factory built oversized toroidal transformer. In
addition to providing an abundance of voltage and current for
all operating stages, the transformer’s toroidal shape helps
prevent stray radiation patterns from corrupting audio
signals as they pass through adjacent circuit stages.
Subsequent power supply segments built with tight-tolerance
parts including T-Network capacitors provide the exact
voltage and current requirements to ensure stress-free
signal reproduction.
The RA-1570’s input section is substantially more exible than
that found in most integrated ampliers. In recognition of the
growing popularity of digital sources, this amplier provides a
front panel USB input for easy connection of a wide variety of
music storage devices including Apple iPods
®
, iPhones
®
, and
iPads
®
. Supported formats include MP3, WAV, and WMA les
for maximum exibility. In addition, real panel coaxial (RCA)
and optical (TOSlink) inputs provide easy connections for
LPCM music les with up to 24-bit word lengths sampled
at 192 kHz. Analog inputs include balanced XLR
connectors in addition to conventional RCA jacks.
Integrated Amplifier
PRELIMINARY DATA SHEET
RA-1570
www.rotel.com
DESCRIPTION
A Wolfson WM8740 stereo D/A converter with selectable
digital lters handles critical conversion from digital data
to continuous analog waveforms.
The Class AB output stage uses discrete devices to ensure
precise reproduction of all signals regardless of origin
with virtually any loudspeaker. The power output, a robust
120 watts per channel into 8 ohms, is substantial as it is a
continuous “both channels driven simultaneously” rating fully
in keeping with real-world expectations and Rotel’s tradition
of providing real-world value.
User conveniences include separate pre-out/main-in
connectors, a highly visible VFD display, precisely-calibrated
electronic volume control, and ROTEL LINK capability for
easy system integration.
Rotel of America • 54 Concord St. • N. Reading, MA 01864 USA
T +1 978 664 3820 • F +1 978 664 4109
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General
Weight and Dimensions
