Functions & Controls - ESX VISION2 Series Owner's Manual

FUNCTIONS & CONTROLS TOP-PANEL
4-Channel Amplifier VE800.4 / VE1200.4
T1
ACOUSTIC PHASE SHIFT LEFT
Adjust the phase modulation (acoustical center) of the Channel 1 between 0 - 180 degrees.
T2
ACOUSTIC PHASE SHIFT RIGHT
Adjust the phase modulation (acoustical center) of the Channel 2 between 0 - 180 degrees.
T3
ON - In this position the phase modulation is activated and can be separatly adjusted with T1 and T2
(See page 32).
OFF - In this position the phase modulation is deactivated. T1 and T2 are out of function.
T4
DISPLAY – If the display lights up white, the amplifier is in operation mode.
If it lights up red the integrated protection circuit is activated.
Possible reasons: Overheating, Speaker Shorts, Overloading (etc by too low impedance or less power)
or the amplifier is damaged. (See chapter Troubleshooting at page 33)
T5
HIGH PASS
Allows to adjust the threshold frequency of the HIGH PASS-Filter of Channel 1/2 and the frequency
response is limited downwards. The threshold frequency is continously variable from 10Hz up to 2500Hz.
T6
INPUT GAIN
This controller allows to adjust the volume (input sensitivity) of Channel 1 & 2 of the input signal,
variable from 0,15 up to 9 Volts.
T7
CROSSOVER SELECTOR
HIGH PASS – In this position the HIGH PASS-Filter of Channel 3 & 4 is activated. This mode is required
for speakers with a diameter from 8,7 cm up to 16 cm.
FULL – In this position full range signal is conducted to the speakers. It is required for speakers
with an diameter about 20 cm. T9 / T10 / T11/ T12 are out of function.
BAND PASS – In this position the LOW PASS-Filter of Channel 3 & 4 is activated. This mode is
required for subwoofers. By using T11 and T12 the subsonicfilter can be adjusted(See page 32).
T8
INPUT GAIN
This controller allows to adjust the volume (input sensitivity) of Channel 3 & 4 of the input signal if
F2 is set to 4-CH-position, variable from 0,15 up to 9 Volts.
T9
12dB STEREO / 24dB MONO
If this pushbutton pressed, the slew rate of the LOW PASS-Filter of Channel 3 & 4 in mono mode will be
raised to 24 dB. Is this pushbutton the slew rate is limited to 12 dB in stereo mode (See page 32).
T10
12dB STEREO / 24dB MONO
If this pushbutton pressed, the slew rate of the HIGH PASS of Channel 3 & 4 in mono mode will be
raised to 24 dB. Is this pushbutton the slew rate is limited to 12 dB in stereo mode (See page 32).
T11
LOW PASS
Allows to adjust the threshold frequency of the LOW PASS-Filter and the frequency response of the
Loudspeaker Signal is limited upwards. The threshold frequency is variable from 40Hz up to 4000 Hz.
T12
HIGH PASS / SUBSONIC
Allows to adjust the threshold frequency of the HIGH PASS-Filter of Channel 3 & 4 and the frequency
response is limited downwards. The threshold frequency is continously variable from 10Hz up to 2500Hz.
If T7 is set to BAND PASS / LOW PASS, you can adjust the subsonic frequency (See page 32).
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