53 Briarwood Road • Florham Park, New Jersey • 07932 • [email protected]
1
Sonogy
TM
"The delicacy of tubes.
The authority of transistors."
Cantata
™ Power Amplifier Owner's Manual
Operation, installation, and
safety
information
serial nos. 92101-92299
117VAC - 50/60 Hz models
Thank you!
Thank you for purchasing your Cantata power
amplifier. This manual will help you enjoy your
amplifier for many years to come. If you have any
questions about operation or maintenance of your
Cantata, please contact your dealer.
Product Description
Sonogy audio designs is committed to designing
electronics that offer the harmonic richness that
distinguishes live music from reproduced music.
Often associated with the best in tube amplifiers, the
Cantata combines natural, rich harmonics with the
traditional virtues of solid-state circuitry. In particular,
the Cantata can deliver high current, deep bass,
exceptional reliability, and still run relatively cool.
Like other truly fine amplifiers, your Cantata is
designed with
real world
performance in mind rather
than incomplete and artificial specifications. As a
result, the Cantata is very powerful (despite its modest
100 watt/ch rating), and drives even difficult
loudspeaker loads with ease. Output is 28 volts r.m.s.
per channel, and the generous power supplies provide
sufficient drive current to deliver this full rating into
most speaker loads. Into 4 ohm loads, for example,
your Cantata delivers 200 watts per channel.
Caution
should be exercised driving unusual loads which fall
below 2 ohms.
The Cantata can be used either as a stereo amplifier or
in pairs as 300W balanced monoblocks. No
modifications are necessary to use a Cantata as a
balanced monoblock; you need only have two Cantatas
and a balanced preamp output to drive each. If your
preamplifier does not offer balanced outputs, Sonogy
offers the Duette balancing module which creates
balanced outputs from unbalanced ones.
Sonogy and Cantata are trademarks of Sonogy, Ltd.
Set-Up and Electrical Connections
Your Cantata should be located on a solid platform, or
on the floor, where it receives good ventilation and is
away from flammable items, such as curtains or paper.
Connections are required for speakers, preamp input(s),
and for 117VAC power. These are clearly marked on
the rear panel of your Cantata, and further information
is provided in figures 1, 2 & 3 in this manual. All signal
connections should be made with the amplifier off, to
prevent possible speaker damage. If the amplifier is
left on while preamp connections are made, it could
amplify the resulting transient and damage or destroy
your speakers.
5-way binding posts are provided for speaker
connections. These will accept bare wires, standard
banana plugs, or spade lugs. A good
clean
connection
is important for consistently good sound. Clean any
connectors used, and insure that all connections are
tight. Do not allow the "hot" and ground connections
to short together. If spade lugs are used, you may wish
to
lightly
tighten the binding posts with a socket or nut
driver; be sure not to crack the plastic binding post. If
you are interested in maintaining absolute phase, your
Cantata does not invert phase. Please note that
connections are made differently for stereo and mono
operation.
Left and right unbalanced inputs are provided via RCA
type jacks. In addition, a single XLR jack is provided
for a mono balanced input signal. Balanced operation
requires two amplifiers for stereo.
Finally, a single EIA modular power jack and line cord
are provided. You may choose to experiment with
specialty power cords supplied by cable manufacturers.
The power cord provided is suitable for all
applications.
