Revox Re:sound ICS 53, Re:sound ICS 82, Re:soundIWS 52, Re:sound ICS 52, Re:sound IWS 82 User Manual
o
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Contents
INTRODUCTION
- Unpacking
- General
Speaker position
- General
- Large room installation
- Surround speaker
Total speaker impedance
INSTALLATION - Preparation
Suspended ceilings / hollow walls
Installation in fitted housing
INSTALLATION
Painting
Disassembling
Technical hints
Technical data
Guarantee
Disposal of your old product
2
2
2
3
3
3
3
4
5
5
6-7
8-10
11
11
11
12
13
14
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INTRODUCTION
Dear Customer and Music Fan
Congratulation on the purchase of
your new Revox fitted speakers. We
are grateful for the trust that you
have shown in our company through
your choice of these high quality
products.
Your Revox fitted speakers were
developed based on the latest in
acoustic know-how and were
manufactured with great care.
Before you start to use them, we
would recommend that you read this
manual thoroughly so that you will be
able to get the best sound results.
Unpacking
Please check that the all parts are
included before you start installation.
2 x Fitted speakers
2 x Metal grills
1 x Cut-out template
We recommend that you keep the
packaging material in case you
should need it in the future to
transport the speakers.
General
The Re:sound I inceiling 52 / 82 (ICS)
and
inwall 52 / 82 (IWS) speakers are
designed to be installed in
suspended ceilings or in wallcladding. The integrated rotary
tensioner enables installation in
walls up to 32 mm thick.
Suitable fitted housings are available
from Revox if you want to install in
solid ceilings or walls. You will find
further information about Revox fitted
housings on Page 6+7.
Protective circuit
Both fitted speakers have a separate
protective circuit for the bass and
treble speakers, which reduces the
level of the speaker in the case of an
overload and reactivates it
automatically after a certain time. The
length of time is dependant on the
extend of the overload.
Magnetic fixture
The speakers offer a magnetic fixture
of the speaker grill, which reduces
the visible height to a minimum of 3,8
mm and in addition enables a very
easy installation
.
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Speaker position
General
Here are a couple of tips for you about
lining the speakers up, before you start
the installation. The speaker is
designed to achieve the optimum
reproduction if walls and room corners
are at least 0.5 meters from the
speaker. A shorter distance leads to
resonance in the bass ranges and to
booming effects.
There should be about 30 mm free
space to the side behind the fitted
opening so that the rotary tensioner
can be got into position (see
drawing).
Ideal fitting volume:
ICS 52 / IWS 52: 10 Liter (dm³)
ICS 82 / IWS 82 : 25 Liter (dm³)
Ducting warning
There shouldn’t be any loose ducting in
the fitting recess as these could vibrate
with the speakers. This would result in
a permanent background noise.
Large room speaker assignment
In the case of large rooms, we
recommend that you distribute
several speakers throughout the
room rather than just installing a
single speaker. Here, the total
impedance must be taken into
account. The possible switching
options of two or more speakers are
explained in the following chapter
The total impedance of speakers
. The
important factors in relation to the
maximum volume are the membrane
cone area and the sensitivity of the
speaker, measured as dB per watt in
1m distance.
In general, the following rule is valid:
the larger the speaker and the
greater the amount of volume
available to it, the lower the deepest
limit frequency.
Usage as Home Cinema surround
speaker
The sound from the surround
speakers should be as diffused as
possible. As a rule, the speakers
should be positioned behind the
listener and at least 0.6 metres above
ear level. Ceiling installation in this
case leads to good results. The
positioning is less important with
surround speaker usage than in other
cases.
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The total impedance of speakers
The total impedance when using
several speakers per channel
depends on the individual
impedances and the switching
option. The speaker switching
options are series and parallel. If the
total impedance is too low, causes
an overload of the amplifier (high
current) and causes the protective
circuit to be permanently activated. If
the total impedance is too high, the
amplifier is prevented from
damage(low current), but on the
other hand, maximum achievable
volume is very low and the speaker’s
full potential is not used.
As the impedance is the speaker’s
frequency-dependant resistor, Revox
recommends that you carry out a test
at the threshold of the permitted
speaker impedance.
Take note of the polarity of the
individual speakers with the various
switching options. The speakers should
always be of the same type, in order to
avoid variances in sound pressure and
radiation. If one or even more
speakers are connected with
reversed polarity, this results in a
significantly reduced bass
reproduction, together with an
imprecise and diffused sound
picture.
Parallel switching
Z
=
Z+ Z+ Z+Z
Z x Z x Z x
1 2 3 n
1 2 3 n
Z
Two speakers in parallel
fig. 1
Three speakers in parallel
fig. 2
Result fig. 1
The parallel switching of 2 speakers
is not a problem.
Result fig. 2
The parallel switching of 3 speakers
leads to a very low overall
impedance and is therefore not
recommended!
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You need to use the supplied fitting
template when doing a standard
installation of the fitted speakers in a
suspended ceiling or wall.
ICS 52 – Installation opening
1
6
5
m
m
6
.
5
i
n
c
h
IWS 52 – Installation opening
148 mm
5.83 inch
R
1
2
m
m
R
0
.
5
i
n
c
h
Max. wall thickness: 32 mm
Make sure that once the opening has
been cut out, no dirt remains in the
installation opening and that any
movable parts are fixed in place.
ICS 82 – Installation opening
2
3
8
m
m
9
.
4
in
c
h
IWS 82 – Installation opening
222 mm
8.75 inch
R
1
2
m
m
R
0
.
5
i
n
c
h
Max. wall thickness: 32 mm
Installation in suspended ceilings or hollow walls
INSTALLATION - Preparation
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