| The
Arcici
Suspense
Rack |
|
| Noel
T. Keen |
| 14
April
1999 |
Arcici,
Inc. Box 704,
Islip Terrace,
New York 11752
Telephone or
Fax (516)
581-7006
Retail $2090
plus shipping
Set-up
and
Preliminary
Suspense
The
Arcici rack
has garnered
rave reviews
from ‘The
Absolute Sound’
and ‘Bound
for Sound’,
so clearly
deserved a
listen. My
existing rack
was a ca. 7
year old
Premier
modular rack—reasonable,
but a far cry
from the best,
with wood
shelves and
rather chintzy
spike supports
for the
shelves. The
Arcici rack
arrived in
four different
boxes and
required a
surprising
amount of
labor to
assemble, in
my case
portions of
four days. The
clever idea
behind the
Arcici is that
a top shelf
and four lower
shelves are
all air
suspended,
thus
presumably
minimizing
vibrational
effects on
components.
Parts were of
high quality
and everything
was included,
avoiding the
all too common
calls to the
manufacturer
for missing
items. The
Suspense has
two wooden box
enclosures,
one of which
sits on short
feet on the
floor and to
which are
bolted the
four metal
vertical
supports. The
other box
enclosure is
bolted to the
tops of the
metal supports
and contains
four
wheelbarrow
inner tubes
that are the
heart of the
system. Both
wooden
enclosures are
constructed of
good quality
hardwood but
arrived
unfinished and
were stained
an awful
reddish color
that invoked
immediate wife
acceptance
factor. This
necessitated
that I burn
two days to
sand down the
enclosures,
re-stain them
a more
civilized
walnut color
and then
finish them
with three
coats of high
quality
semi-gloss
varnish. After
all this, the
enclosures
looked good,
as they should
have straight
from the
manufacturer.
Further
assembly went
smoothly,
albeit
considerable
time was
required. The
inner tubes in
the upper box
were inflated
and a heavy
(ca. 70 pound)
steel plate
was set onto
them. From
holes near the
corners of the
steel plate,
four T-bolts
suspended long
screw rods
onto which, in
turn, threaded
T-bolts and
padded washers
were screwed
to determine
shelf heights.
It turned out
to be very
laborious to
position the
threaded
T-bolts, but
once they and
their
associated
washers on top
were
positioned and
leveled, the
attractive
acrylic
shelves could
be inserted
with no
trouble. After
components
were placed
onto the
shelves (four
suspended
acrylic
shelves come
standard plus
another
acrylic shelf
positioned on
top of the
steel plate
for source
components),
valves located
on the back of
the top wooden
box were used
to further
inflate or
deflate the
inner tubes in
order to
empirically
get desired
acoustic
properties
(yes, we are
dealing with a
tuning device
here).
How
it Sounded
Once
assembled, I
set the Arcici
rack up close
to the
existing
Premier rack
and A/Bed the
Krell CD
player between
the two racks.
Surprisingly,
the Arcici
rack did not
provide much
change in the
sonic
character of
the system, a
finding
somewhat at
odds with the
rave reviews
noted above.
Bear in mind
that I had
evolved over
time with the
Premier rack
to use Black
Diamond Racing
(BDR) #3 cones
between the CD
player and the
excellent BDR
Shelf for the
Source (all 30
pounds
worth!), and
also found
that using
multiple
Vibrapods
between the
Shelf and top
of the
equipment rack
made major
improvements.
When I used
the CD player
directly on
the top
shelves of the
Arcici or the
Premier racks
with no BDR
stuff, the
Arcici showed
a major sonic
improvement,
as it should
have—no
contest there.
However, after
messing with
various
permutations
of BDR
cones/shelf
and Vibrapods
on the Arcici
rack, I
concluded that
these further
improved the
perception of
natural
imaging and
instrument
position, as
well as high
end purity.
Accordingly, I
ended up with
exactly the
same array of
BDR and
Vibrapods with
the Arcici
rack as used
previously
with the
Premier. I
characterize
the system
sound with the
Arcici rack
under these
conditions
relative to
the Premier as
slightly
improved for
midrange
timber and
clarity, the
treble was
slightly
cleaned up and
extended, but
little if any
change was
noted in the
bass
frequencies or
in
soundstaging/imaging.
To give music
examples, two
well recorded
string CDs
provided
useful
comparisons.
The cello and
violin on ‘Music
for a Glass
Bead Game’
(John Marks
JMR15) and ‘Auer,
Delmoni, and
Rosen’
(Clarity
CCD-1007) were
improved,
especially in
the top
registers by
the Arcici
rack relative
to the
Premier, both
used with the
ancillary
isolation
items. The
Arcici rack
seemed to
provide
greater purity
and
resolution,
especially in
the treble and
upper mid
range, but
differences
were small and
required
careful
attention to
certain
notes/passages.
Thus, while
providing
marginal
benefit as
compared to
the Premier
rack (with the
BDR/Vibrapods),
the Arcici
(also with the
BDR equipment/Vibrapods)
was not
revelatory,
instead
providing only
incremental
improvement in
my system.
The
next step was
to position
the amplifiers
onto the lower
acrylic
shelves of the
Arcici rack.
This was quite
a chore, with
the Krell amp
placed on the
bottom shelf
and the KR
monoblocks on
the next two
shelves (for a
total weight
of about 360
pounds!). All
amps were
placed on BDR
#3 cones or a
mixture of #3
and #4 and the
Krell amp used
‘those
things’
under the
points of the
cones. This
left only one
remaining
Arcici shelf,
which was used
for the Adcom
5 disc player—thus,
there is no
room for
future
components.
Disappointingly,
little or no
difference was
noted in the
sonic
signature of
the system
with the amps
on the
Suspense rack
relative to
their former
placement on a
three inch
slab of
granite on the
floor with
black Diamond
Racing cones
and ‘Those
Things’
between the
amps and the
granite. This
conclusion was
true based on
jazz, piano
and vocal pop
material to
large scale
orchestral
music.
Arcici
recommends
inflating the
inner tubes to
provide about
1/8 inch of
clearance
between the
upper steel
plate and the
wooden box
holding the
inner tubes.
Increasing or
decreasing the
clearance made
small
differences in
sound, with a
more
analytical
character
obtained by
over-inflating
and a more
lush, but
mushy
character
observed with
severe
under-inflation.
I ended up
liking a
clearance of
about ¼ inch,
but
preferences
will vary and
will depend on
system
considerations
such as other
isolation
components,
power cords
and cables,
and naturally
front end and
amplifier
components as
well as
speakers--we
are in part
talking about
tonality
tuning here!
Summary
I
ended up
keeping the
Suspense rack,
but that
decision was
predicated as
much on its
larger shelves
as on sonic
bliss. The
Arcici
Suspense rack
is very
functional,
with large
shelves that
will hold
virtually any
component and
is a beautiful
piece of
furniture (at
least when the
wooden pieces
are properly
finished). The
rack is
solidly built
and would
appear likely
to offer long
life and high
performance.
As others have
stated, the
inner tubes do
not seem to
leak air at a
significant
rate, thus
avoiding
frequent
inflation.
Relative to
components set
directly on
shelves of
lesser racks,
the Arcici can
be expected to
provide a
major sonic
improvement.
However, in
comparison to
the outdated
and much
cheaper
Premier rack
tricked out
with Black
Diamond
equipment/Vibrapods,
the Arcici
offered only a
small,
incremental
improvement
overall.
Accordingly,
in view of the
substantial
cost of the
Arcici
Suspense rack,
only
audiophiles
with top tier
components
(and budgets)
should apply.
System
Von
Schweikert
VR-8 speakers
with the
silver
internal wire
option were
set up in a
large room
about 6 feet
from one side
wall and more
than 15 feet
from the other
(only 29
inches from
the front wall
proved to give
the best bass
compromise) in
an irregular
California
style split
level living
area of
greater than
25,000 cubic
feet. The back
wall was not
parallel, with
the furthest
point about 45
feet away from
the speakers.
The floor has
a moderately
thick carpet
and the
ceiling is
open
wood-beamed
cathedral,
angling up and
away from the
speaker
position. The
speakers sound
good in this
location
without room
treatment (not
to say the
usual tricks
would not
improve
things),
almost a
necessity due
to WAF. The
speakers were
separated by
about 12 feet
center to
center and the
listening
position was
about 11 feet
from the
speaker center
line between
drivers of the
two speakers.
Only slight
toe-in proved
the best
compromise for
imaging and
sound-staging
since the
speakers are
not
particularly
directional.
Amplifiers
were the Krell
FPB600 and/or
the KR
Enterprises
VT8000MK
monoblocks run
singly or bi-amped.
CDs only were
used as source
material
through a
Krell KPS-20iL
CD player run
directly into
the amplifiers
through
Harmonic
Technology
Truth Link
interconnects.
An Adcom
GCD600 5 disc
player was
utilized for
entertainment
music through
the Krell DACs
and sounds
surprisingly
good. Speaker
cables were
Harmonic
Technology
Pro-9 cables
run bi-wire to
the bass and
mid/tweeter
modules of the
VR-8es. Magnan
Signature and
Electraglide
ReferenceGlide
power cords
also provided
noteworthy
improvements
in the sound.

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