Genelec SAM 8340A, Руководство по эксплуатации

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supply is stable.
The ANALOG IN connector is used for analog audio signals. The
maximum input level is +25 dBu. These monitors produce 100
dB SPL sound level at 1 meter in free space for an analogue
input signal of -6 dBu.
The DIGITAL IN AES/EBU female XLR connector is for AES/
EBU formatted digital audio input signals. This input is selected
automatically when a valid digital audio signal is present.
Analog input is selected when the AES/EBU signal input is
disconnected. The AES/EBU input supports two channels in a
single cable). When the digital source device controls the digital
output level, it may be advantageous to lower the level on the
monitor’s controls, which will enable the use of a higher digital
signal level with more digital resolution. With digital inputs the
audio is referenced to 0 dBFS (dB relative to the digital full scale,
the largest level that can be represented in the AES/EBU signal).
These monitors produce 100 dB SPL sound level at 1 meter in
free space for a digital input signal of –30 dBFS. The DIGITAL
OUT male XLR carries an unaltered copy of the digital signal fed
into the digital in connector. This enables daisy-chaining up to
four monitors.
The CONTROL NETWORK RJ-45 connectors are used with
Genelec Loudspeaker Manager™ (GLM™) network. These
connectors are not Ethernet LAN compatible. Do not connect
to Ethernet LAN.
Stand-Alone Control Functions
Bass Roll-Off Control
Bass Roll-Off control attenuates the monitor’s output near the
cut-off frequency. Attenuation levels of -2 dB, -4 dB or -6 dB
(both switches ON) can be selected.
Desktop 160 Hz
The desktop low frequency control (switch 5) attenuates the
bass frequencies around 160 Hz by 4 dB. This feature is de-
signed to compensate for the boost often occurring at this fre-
quency range when the monitor is placed upon a meter bridge,
table or similar reflective surface.
Bass Tilt Control
The Bass Tilt control switches (swiches 3 and 4) offer three at-
tenuation levels for the bass response below 800 Hz, usually
necessary when the monitors are placed near room boundaries.
The attenuation levels are -2 dB, -4 dB and -6 dB.
Treble Tilt Control
Treble Tilt control allows adjusting the treble response above 5
Figure 2. Connectors and controls on the back panel of a 8340A.
SMART ACTIVE MONITOR
BA
SS
RO
LL
-O
FF
LE
DD
IS
AB
LE
BA
SS
TI
LT
A
-2
0d
B B
-2 -4 -2 -4
ON
OFF
ON
OFF
ST
ORED
(d
B)
-1
0d
B
RESET TO FACTORY
SETTINGS: PUSH
BUTTON FOR 10 SEC
LEVE
L
DI
GI
TA
L
TR
EB
LE
TI
LT
+2 -4
DE
SK
TO
P1
60
Hz
-4
(d
B)
20 160
+2
-2
-4
dB
-6
0
4k 20k
BASS
TILT
800
BASS
ROLL-OFF
DESKTOP
ALL OFF
TREBLE
TILT
Frequency (Hz)
SENSITIVITY
IN dBu FOR
100 dB SPL (1 m)
IS
S
-2
+4
+2
-4
-6
+6
dBu
0
ANALOG
IN
DIGITAL THRU
AES/EBU
DIGITAL IN
AES/EBU
MADE IN FINLAND
8340A
MAGNETICALLY SHIELDED
SERIAL NUMBER
www.genelec.com
GLM
NETWORK
MAINS INPUT
50 / 60 Hz 200 W
100 - 240 V~
292-
8340T
-6
This device complies
with FCC Part 15 and
Canadian ICES-003
radio frequency
Class B emission
requirements. Refer
to operating manual
for full information.
DIP SWITCHES FOR
STAND-ALONE USE
ROTARY LEVEL
CONTROL
POWER
SWITCH
AUDIO SIGNAL
CONNECTORS:
-DIGITAL IN
-DIGITAL THRU
-ANALOG IN
MAINS INPUT
GLM NETWORK
CONNECTORS
Monitor
Mounting Position
Treble
Tilt
Bass
Tilt
Bass
Roll-Off
Desktop
Flat anechoic
response
None None None None
Free standing in
a damped room
None -2 dB None None
Free standing in
a reverberant room
None -4 dB None None
Near field on
a reflective surface
None -2 dB None -4 dB
In a corner None -4 dB -4 dB None
Table 1. Suggested Tone Control settings for some typical moni-
tor placement positions.