Avantgarde SPACEHORN Manuel de l'utilisateur - Page 10

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Avantgarde SPACEHORN Manuel de l'utilisateur
OPERATION – TRIO G3 ITRON VERSION
AUDIO SOUND ADJUSTMENTS
1 8
SPEAKER TYPE
TRIO G3
PUSH
MODEL NO.
ITRON AMP–TRIO
ORIGIN
MADE IN GERMANY
OUT
IN
FUSE
TRIGGER
SENSOR
12V DC
ON/OFF
ENGAGED
FUSE
E FUSE
DIMMER
POWER
RESET
TOGGLE
FOR HOME OR OFFICE USE
The 3 x DRIVER GAIN switches
+ 1.5
+ 1.5
+ 1.5
3 x horns in –1.5 dB, 0 dB (= FLAT) and +1.5 dB steps.
0dB
– 1.5
– 1.5
– 1.5
LOW
MID
HIGH
LOW
adjusts the level of the lowrange horn (100 - 600 Hz)
DRIVER GAIN
MID
adjusts the level of the midrange horn (600 - 4.000 Hz)
HIGH
adjusts the level of the tweeter horn (above 4.000 Hz)
Factory default is the "O dB" position for all 3 switches.
Adjustments may be made according to personal taste, for
adapting to the tonal "brightness" (or lack thereof) of connected
source equipment, or to mildly correct room acoustic influence.
In practice, the tonal balance between the 3 x f requency bands can
be altered up by up to 3 dB. For example:
With the HIGH and LOW switches set to +1.5 dB, and the MID switch
+ 1.5
+ 1.5
+ 1.5
set to –1.5 dB, the relative volume of the midrange is reduced by 3
0dB
dB against the tweeter and lowrange horns. This could be used as a
– 1.5
– 1.5
– 1.5
LOW
MID
HIGH
favorable voicing for "shouty" recordings (with over-emphasized
DRIVER GAIN
midrange f requency content) or in an acoustical environment that
has a "peak" in the midrange.
PUSH
INTERNAL CONNECT PORT
BALANCED SIGNAL
OUTPUT TO DRIVER
INPUT
OUTPUT
B C
+ 1.5
+ 1.5
+ 1.5
+ 1.5
+ 3
+ 6
A
D
0dB
– 1.5
– 1.5
– 1.5
– 1.5
– 3
– 6
POWER ON
LOW
MID
HIGH
TOTAL GAIN
MODE
DRIVER GAIN
SERIAL NO.
1 1
allow tonality adjustments of the
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
GND
1 2
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
+ 1.5
+ 3
+ 6
0dB
– 1.5
– 3
– 6
TOTAL GAIN
18
19
OPERATION – TRIO G3 ITRON VERSION
GAIN ADJUSTMENTS
The 3 x TOTAL GAIN switches
allow the adjustment of the gain of
the speakers to the strength of the line level signal f rom the
connected preamp. To avoid sound degrading potentiometers in
the signal path, 3 x switches in an additive stepped arrangement are
being used. Factory default is the "0 dB" position for all 3 switches.
Practical example: If a preamp already makes big "jumps" in sound
level by turning the volume knob just slightly, reducing the iTRON's
input gain by up to –10.5 dB may increase the adjustment angle of
the pre amps volume knob considerably, thus enhancing its
practical usefulness for f ine volume adjustments.
The following steps are possible:
+/– 1.5 dB
= left switch in "+" or "–" position
+/– 3 dB
= central switch in "+" or "–" position
+/– 4.5 dB
= central & left in "+" or "–" position
+/– 6 dB
= right switch in "+" or "–" position
+/– 7.5 dB
= right & left in "+" or "–" position
+/– 9 dB
= right & central in "+" or "–" position
+/– 10.5 dB
= all 3 switches in "+" or "–" position