GENELEC S30C Studio Monitor Operating Manual

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GENELEC S30C Studio Monitor Operating Manual | Manualzz
 GENELEC
Genelec S30C Operating
Monitoring Speakers Manual
1. General description
System
The Genelec S30C is a three-way
active monitoring system including
drivers, amplifiers and active cross-
overs. Designed for relatively small
control rooms this system is ideal for
general purpose broadcasting and
television studios, digital worksta-
tions, post production facilities and
mobile recording vehicles. The high
output and absolute reproduction
accuracy make the S30C an ultimate
nearfield monitor for recording stu-
dios.
Featuring a proprietary ribbon tweeter
S30Cis ano compromise design. The
fast low distortion amplifiers are ca-
pable of driving the stereo system to
peak output levels in excess of 122
dB SPL at 1 m with program signals.
Versatile crossover controls allow for
precise matching of the speaker sys-
tem to different acoustic conditions.
Separate models exist for vertical and
horizontal use.
Drivers
The bass frequencies are reproduced
byan 210mm (8") bass driver loaded
with a 24 litres vented box. The bass
driver has a very large magnet and
long excursion capability. The -3dB
point is 42 Hz and the low frequency
response extends down to 35 Hz.
The midrange frequencies are repro-
duced with a very carefully designed
80 mm (3 1/2") cone driver specially
impregnated to minimize coloration.
The high frequency driver is a propri-
etary ribbon tweeter with a moving
mass of only 32 mg and frequency
response extending into the ultra-
sonic range.
Crossover filters
The active crossover network con-
sists of three parallel bandpass fil-
ters. The crossover frequencies are
420 Hz and 4 kHz. Bass, midrange
and treble level controls, with 1 dB
steps, are included in the crossover
to change the balance between the
drivers under different acoustic con-
ditions. The low frequency tilt and
roll-off controls both have four 2 dB
steps to allow refined low frequency
equalization. The crossover network
is driven by an active balanced input
stage. Variable input sensitivity al-
o Bass Bass Bass Midrange Treble
Speaker Mounting Position roll-off tilt level level level
Free anechoic response None None: None None None
Free standing in a damped None -2 dB None None None
room
Free standing in a revebrant None -4 dB None None None
room
Near field or on console None None -4 dB None None
bridge
In a corner -2 dB -2 dB -2 dB None None
Figure 1, Suggested tone control settings for different acoustic environments
lows for accurate level matching to
the mixing console.
Amplifiers
The bass, midrange and treble ampli-
fiers each produce 120 W of short
term power with very low THD and
IM distortion values. The system in-
corporates special circuitry for driver
overload protection and amplifier ther-
mal protection.
De
O
495 mm
Figure 2. Speaker acoustic axis and dimen-
sions in horizontal and vertical mounting
positions.
2. Installation
Each S30C monitor is supplied with
an integrated amplifier unit, a mains
cable and an operating manual. Once
unpacked, place the loudspeaker in
its required listening position, taking
note of the line of the listening axis
(see figure 2). Before connecting up,
ensure that the mains switch is off
(see figure 4). Check that the mains
voltage selector is correctly set and
that the appropriate fuse is fitted.
Audio input is made via a 10k Ohm
balanced (XLR), butunbalanced leads
may be used as long as pin 3 is
grounded to pin 1 of the XLR (see
figure 3). Once connection has been
made, the speakers are ready to be
powered-up.
Setting the input sensitivity
Adjustment of the input sensitivity of
each speaker can be made to match
that of the mixing desk or other
source, by use of the input sensitivity
control on the rear panel (see figure
4}. A small screw driver is needed for
the adjustment. The manufacturer
default setting for this control is -6
dBu (fully CW) which gives an SPL of
100 dB @ 1m with -6 dBu input level.
Note that to get the full output level
of 111 dB SPL, an input level of +5
dBu is needed at this setting.
Setting tone controls
The acoustic response of the system
may also have to be adjusted to
match the acoustic environment. The
adjustment is done by setting the
five tone control switches ‘bass tilt’,
‘bass roll-off’, 'bass level’, mid level’
and treble level' on the rear panel of
the amplifier. The manufacturers de-
fault settings for these controls are
‘All Off‘ to give a flat anechoic
response. See Figure 1 for suggested
tone control settings in differing acous-
tic environments. Figure b shows the
effect of the controls on the anechoic
response. Always start adjustment
by setting all switches to the 'OFF'
position. Then set only one switch to
the 'ON' position to select the re-
sponse curve required. If more than
one switch is set to 'ON' (within one
switch group) the attenuation value
is no longer accurate.
Vertical / horizontal mounting
The speakers are delivered either for
vertical or horizontal mounting. In
the horizontal mounting position the
bass drivers should point inwards to
obtain a proper stereo image.
Console top mounting
If the S30C's are used for console
top monitoring it is recommended
notto mount the speakers directly on
the console. Instead position the
speakers slightly behind the console
by using floor stand to the console
rear side. This prevents the reflec-
tions from the console surface from
colouring the sound.
Overload indicators
The speaker is provided with two
warning LED's marked 'OVL' and
'ON'. The green ON-LED when lit
indicates that the speaker is ready for
use. The red OVL-LED indicates that
the amplifier is overloaded or the
driver protection circuit is activated.
In both cases reduce the signal level
so that the LED stops blinking. If the
OVL-LED stays on constantly it indi-
cates that the amplifier thermal pro-
tection is activated. Let the amplifier
cool down and check that the
ventilation at the rear side of the
speaker is not blocked. There should
be a clearance of more than 100 mm
between the speaker rear and any
solid surface at the back.
3. Maintenance
No user serviceable parts are to be
found within the amplifier unit. Any
maintenance or repair of the S30C
unit should only be undertaken by
qualified service personnel. Ensure
that if fuse replacement is required,
only fuses of the appropriate voltage
and current ratings are used. RE-
MEMBER to disconnect the power
supply by removal of the mains cable,
before fuse replacement.
4. Safety Considerations
Although the S30C has been de-
signed in accordance with interna-
tional safety standards, to ensure
safe operation and to maintain the
instrument under safe operating con-
ditions, the following warnings and
cautions should be observed.
Servicing and adjustment should only
be performed by qualified service
personnel. Opening the amplifier's
rear panel is strictly prohibited except
by qualified service personnel who
are aware of the hazards involved. It
is forbidden to use this product with
an unearthed mains cable, which may
lead to personal injury.
WARNING! This equipment is capable
of delivering Sound Pressure Levels
in excess of 85 dB, which may cause
permanent hearing damage.
= EB]
RCA
Figure
input is required.
Er e
Screen
b. Accessories
Opt 01 -Flightcase
Opt 03 -Magnetic shielding
-Wall mount
-Floor stand
Opt 04
Opt 05
Opt 06
Opt 09
6. Gu
-Handles
-Grille
arantee
XLR
3 . XLR connection if unbalanced
This product is supplied with a ONE
YEAR guarantee against manufactur-
ing faults or defects that might alter
the performance of the S30C unit.
Refer to supplier for full sales and
guarantee terms.
BASS, MIDRANGE AND
TREBLE LEVEL CONTROLS =—
|
BASS TILT CONTROL —_
“че
BASS ROLL-OFF CONTROL. TEs <a" ems
He sans
09 NT я KE na SE
INPUT SENSITIVITY — O || 7 TT
CONTROL — + | A | A | E. a mimi
= » 0 ИЕ De] |
XLR INPUT CONNECTOR ——_ mma] [ome В
Еее GENELEC?
ma AS
"на = e "O мое ею [|]
MAINS VOLTAGE __ > mom J
SELECTOR ———o] = М оная ——— _ 13 PEA SA ae НЦНЫЙ J
=> =
lid Var 2
MAINS FUSE — @
op sm |» (С)
JU OFF NOTE
MAINS SWITCH ——— | > [| APTFOFTIATE FUSE ARE BELECTED BEFORE
® CONNECTION TO THE MA me ,
— 10 ET
MAINS CONNECTOR —
EN IGN CONTR)
FOR FLAT FAEE FEELO RESPONSE BET ALL TONE COMTRÓLA
TO OFF
CONT HÔLE ARE HN USE, ONLY ONE @#ITCH FOR
TROL SHOULD BE OH AT ANY TRIE TD EHSUFE
EN TONE
EACH CON
ACCURATE OPERATHIN
HEE OPERATING MANUAL FOR dUCODESTED TONE CONTROL
SETTINOH
LEVEL CONTROLS
= veus
20 kHz
i (EE BEE ARR STH à
Tl FP EE EE
er.
Figure 4. Rear panel layout.
LÉVEL{oBr) vs FRECKHz)
ALR PRECISIÓN S30C
| 100 + + = я т pe TT
м = I ++ Ри =
Fa
ari
20 = — 100 Tk
Figure 5. The curves above left show the effect of the 'bass tilt', 'bass
level’ and 'bass roll-off' controls on the free field response. The curves
to the right show the effect of the treble and midrange 'level' controls.
Fae | |
Fiel AT = Y
+ PT]
Е a a —_ aa — + accord me Bad a
27 APR 92 14:15:41 | AUDIO PRECISION S30C
100
| | | |
95
85
80
|
75
| 70 100
| 65 95
60 70
Da 4 EEE | |
| LEVEL | - |
10k 20k
—o : 2
LEVELCABA vs FREGMHZ)
27 APR 92 14:59:40 |
|
|
foe
A AAA hi A Un
Ro AE “e |
| 30° | ||
Ze
LEE — |
L | EE |
HT dl |
| P= Tor
| LL
|
| | | | |
LL LE |
1k lou ALA
Figure 6. The upper curve group shows the horizontal directivity
characteristics of S30C ints vertical configuration measured at 1 m.
The lower curve is a 1/3 octave band power response, measured in
an IEC approved reverberation chamber.
SYSTEM
SPECIFICATIONS
Lower cut-off frequency, -3 dB: <42 Hz
Upper cut-off frequency, -3 dB: > 25 kHz
Free field frequency response
of system: 43 Hz - 25 kHz (+ 2.5 dB)
Maximum short term sine wave
acoustic output on axis
in half space, averaged from
100 Hz to 3 kHz: @1m >111 dB SPL
@0.5m>117 dB SPL
Maximum long term RMS acoustic
output in same conditions with |EC-
weighted noise (limited by driver unit
protection circuit): @1m >102 dB SPL
@0.5т > 108 dB SPL
Maximum peak acoustic output
per pair on top of console,
@ 1m from the engineer
with music material: >122 dB
Self generated noise level in
free field @ 1m on axis: <10 dB
(A weighted)
Harmonic distortion at 90 dB SPL
at Tm on axis: freq. 200 Hz <2%
freq. >200 Hz <1%
Drivers: Bass 210mm (8") cone
Midrange 80 mm (3 1/2") cone
Treble 9x65 mm
(3/8"x2 1/2")ribbon
Weight:
Dimensions :Height 495mm (19 1/2")
Width 320mm (12 5/8")
Depth 290mm (11 1/3")
20 Kg (44 Ib)
GENELEC"
Genelec Oy, Olvitie 5
FIN-74100 IISALMI, FINLAND
Phone: +358-17-813 311
Fax: +358-17-812267
Email; [email protected]
Web: hitp://www.genelec.com
AMPLIFIER
SECTION
Bass amplifier output power with a 8
Ohm load: Short term 120W
Midrange amplifier output power with a
8 Ohm load: Short term 120W
Treble amplifier output power with a 8
Ohm load: Short term 120W
Long term output power is limited by
driver unit protection circuitry.
Slew rate: 80V/us
Amplifier system distortion at
nominal output: THD <0.05%
SMPTE-IM <0.05%
CCIF-IM <0.05%
DIM 100 <0.05%
Signal to Noise ratio, referred to full
output: Bass >100 dB
Midrange >100 dB
Treble >100 dB
Mains voltage: 100/200V or 115/230V
Voltage operating range at
230V setting: 207 - 253V (+10%)
Power consumption: Idle 30W
Full output 200W
—— _ rr ———— — — = ==
CROSSOVER
SECTION
Input connector: XLR female pin1 gnd
pin2 +
pin3 -
Input impedance: 10 kOhm
Input level for 100 dB SPL output @ 1 т:
variable from +6 to -6 dBu
Input level for maximum short term output
of 111 dB SPL @1m:
variable from +17 to +5 dBu
Subsonic filter below 38 Hz :
18 dB/octave
Ultrasonic filter above 25 kHz:
12 dB/octave
Crossover frequency:
Bass/Mid 420 Hz
Mid/Treble 4 kHz
Crossover acoustical slopes:
18 - 24 dB/octave
Crossover level control operating range in
1 dB steps: Bass from O to -6 dB
Mid from O to -6 dB
Treble from O to -6 dB
Bass roll-off control in 2 dB steps:
fromOto-8dB 942 Hz
Bass tilt control in 2 dB steps:
from Oto -8dB Ñ (980 Hz
The 'CAL' position 1s with all tone
controls set to 'off' and input sensitivity
control to maximum.
Note! All frequency response curves were
measured in a calibrated, 12 m cube, anechoic
chamber at 1 m using grade 1 measuring
equipment. Input signal levels were set at-20
dBu. The anechoic chamber error in the free
field response is less than 0.5 dB down to
60 Hz.
Data Sheet No. 1010-0106-1
COPYRIGHT GENELEC OY 1992
All data subject to change without prior notice

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