ENCORE TRUE DUAL MONO AMPLIFIER
Product Concept and Description, cont.
is not practical to use this approach for
higher power amplifiers. A great deal of
money is spent on taking up space and
creating heat, without addressing AC
mains problems which affect sonic
quality.
Cello's dual choke power supply
system utilizes the entire AC waveform,
not just the peaks (like the capacitor input
system) and is very efficient so that no
cost, space, or heat is wasted (as in the
active regulator system). The high
quality, custom-made transformers and
chokes provide energy storage far beyond
the impression of their physical size. The
advantages of the dual choke input
system are quite apparent on a listening
basis, providing controlled, powerful,
deep bass and other sonic refinements.
SONIC
QUALITY
The first reaction of most listeners is,
"Flow can such a sound come from such a
compact package?" In fact, when Cello
engineers first connected the prototype of
the ETDMA for Mark Levinson to audi-
tion, he got up and checked to make sure
that it really was the ETDMA playing and
not his PA set. After auditioning the
ETDMA, one can appreciate and under-
stand the significance of the PA technol-
ogy better, since it is now available in a
power range that corresponds to what the
largest number of listeners need for their
music systems. The speed and clarity of
the ETDMA is astonishing, with no
hardness in the higher frequencies. The
sound presentation has effortless qual-
ities associated with amplifiers having
higher power ratings, yet with the sonic
refinements and transparency associated
with all Cello products.
CONSTRUCT
ION
The ETDMA utilizes bar-and-plate chassis
construction so that individual panels can
be replaced if necessary. Stainless steel
hardware, gold contacts, and many
premium parts ensure as-new sonic
performance for decades of trouble
free operation.
Most audio products use the same
family of circuits and parts, metalwork
and hardware. If you inspect Cello
products on the inside and outside, you
will find very few parts common to other
audio products on the market. Cello
products cost more because they are built
with superior circuit designs, parts, and
manufacturing techniques for those who
want higher performance, reliability,
freedom from obsolescence, and complete,
long term satisfaction.
SUMMARY
The ETDMA is a compact power amplifier
offering state-of-the-art performance and
construction in the medium power class.
Balanced line inputs, dual choke supplies,
mono construction, copper heatsinks, and
advanced engineering are combined to
offer Cello quality in an attractive and
elegant package.
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