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Extracted text from Rotel RA 1570 Brochure (Ocr-read)
Page 1
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-1570s input section is substantially more
flexible than that found in most integrated amplifiers.
In recognition of the growing popularity of digital sources,
this amplifier provides a front panel USB input for easy
connection of a wide variety of music storage devices
including Apple iPods, iPhones, and iPads. A rear
panel asynchronous PC-USB input supporting files up
to 24bit/192kHz is also provided. In addition, two each
coaxial (RCA) and optical (TOSlink) inputs provide easy
connections for LPCM music sources including popular
streaming devices with up to 24-bit word lengths sampled
at 192 kHz. Importantly, it is possible to fix the level on
Long recognized as a central component in superb
yet cost-effective music systems, the integrated amplifiers
job has evolved substantially as many music-lovers have
migrated to digital sources. The RA-1570 is one of the
best examples of melding classic analog design with
contemporary digital circuits to bring all of your sources
to life with surpassing fidelity.
As typical of Rotel amplifiers, the RA-1570s circuitry
draws on a high capacity power supply based on
a Rotel custom designed and in-house manufactured
oversized toroidal transformer. In addition to providing
an abundance of voltage and current for all operating
stages, the transformers toroidal shape helps prevent
stray radiation patterns from corrupting audio signals
as they pass through adjacent circuit stages.
Page 2
RA-1570 Integrated Amplifier
these sources for use with devices that provide their
own volume control. Analog inputs include a pair of
balanced XLR connectors in addition to conventional
RCA jacks.
A Wolfson WM8740 stereo D/A converter 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 requirements and
Rotels tradition of providing extraordinary value.
User conveniences include separate pre-out/main-in
connectors, a highly visible VFD display for set-up,
and a precisely calibrated electronic volume control.