Alto ACL8, Service Manual

Page: 4 / 22

Type Active balanced XLR and 1/4'' jack
Impedance Balanced >50kohm, Unbalanced>25 kohm
Operating level +4dBu/-10dBV
Max input level +21dBu balanced and unbalanced
CMRR Typically >55dB at 1KHz
Type XLR and 1/4'' jack
Impedance Balanced 60ohm, Unbalanced 30 ohm
Max output level >+21 dBu
Type 1/4'' jack
Impedance 2 k ohm
Max input level >+21 dBu
Type 1/4'' jack
Impedance >10k ohm
Max output level >+24 dBu
Bandwidth 20Hz to 20kHz, +0/-0.5dB
Noise >-90dBu, unweighted, 22Hz to 22kHz
<0.01% Typical at +4dBu, 1 kHz, unity gain
<0.04% Typical at +20 dBu, 1kHz, unity gain
IMD <0.01% Typical SMPTE
Crosstalk <-100dB, 22Hz to 22kHz
Type Smart Ratio control Expander
Threshold variable(OFF to +15dB)
Ratio variable(1:1.2 to 1:8)
Type Smart Knee control Compressor
Threshold variable(-40dB to +20dB)
Ratio
variable(1:1 to
∞
:1)
Threshold Characteristic variable(Smart Knee control )
Mnual Attack Time variable91ms to 150 ms)
Auto Attack Time Typical 15 ms at 10dB, 5ms at 20dB, 3ms at 30dB
Auto Release Time program dependent, typical 125 dB/s
Output Level va20dB to +20dB)
Type Smart Gain control Peak Limiter
Threshold variable(0 to OFF(+22 dBu))
Ratio
∞
:1
Stage 1 Limiter Type Cipper
Attack Time ''zero''
Release Time ''zero''
Stage 2Limiter Type Program Limiter
Attack program dependent, typ,<5ms
Release program dependent, typ,20dB/s
SMART Enable the "smart knee control" characteristics
SC FILTER Allow for frequency dependent processing
Enable th automatic and program dependent
setting of the Attack/Release times,
disengaging the manual Attack/Release controls
I/O Meter Switches between input and output for level meter
BYPASS Bypass switch
Changes the internal reference level from
+4dBu to -10dBu
Linking both channels for stereo operation
(Channel1 becomes master)
GAIN REDUCTION 8-Segment LED display:1/3/6/10/15/20/25/30dB
INPUT/OUTPUT LEVEL 8-Segment LED display:-24/-18/-12/-6/0/+6/+12/+18dB
Expander/Gfate Threshold 2LED for under ";+" and above "-"
Compressor Threshold 3 LED for under"+", interactive"0", and above "-"
Peak limiter Threshold 1 LED for indication of limiter function
Function Switches LED indicator for each
USA/Canada ~120VAC,60Hz
UK/Australia ~240VAC,50Hz
Europe ~230VAC,50Hz
General Export Model ~100-120VAC, ~200-240VAC, 50-
100-120VAC: 630mA(SLOW-BLOW)
200-240VAC:315mA(SLOW-BLOW)
Power Consumption 40 watts
Mains Connection Standard IEC receptacle
Dimension(W*D*H) 485.0*233.0*90.0mm
Net Weight 5.2 Kg
THD
Mains Voltages
Fuse
Physical
Power Supply
Indicators
LINK
OPERATING LEVEL
AUTO
Function Switches
Peak Limiter Section
Compresser Section
Expander/Gate Section
System Specifications
Return
Send
Output Section
Input Section
2. Specification
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