Altec Lansing 1662a signal processing Техническое Руководство
© 2003 Altec Lansing Professional y 1000 W. Wilshire Blvd., Suite 362 y Oklahoma City, Oklahoma 73116
Phone: 1.405.848.3108 y Fax: 1.405.848.3217 y Email: proinfo@alteclansing.com
1662A Revision 01
1662A
Rack Mount Mic/Line Mixer
FEATURES –
FEATURES –
THE ALTEC LANSING DIFFERENCE
•
6 Mic/Line Inputs
•
Stereo Summing on Inputs 5 & 6
•
Studio Quality Microphone Preamps
•
Bass & Treble Controls on each Input
• Dual
Outputs
(selectable)
•
19” Rack Mount, 2RU
GENERAL PRODUCT DESCRIPTION
Altec Lansing’s 1662A mic/line mixer is a professional, studio
quality solution for your permanent install mixing needs. The
1662A features six (6) microphone or line inputs with 20dB pad,
TRS insert, and +48V phantom power. Each input channel has
up to 60dB input gain, separate bass & treble controls, an output
assign switch for sending signal to either or both outputs, and a
level control. Stereo summing inputs on channels 5 & 6 provide
a convenient way to add typical program sources from DVD, CD,
or tape. The summing inputs can be connected for stereo-to-
mono or stereo-to-stereo operation. A full 11-segment LED
array indicates levels on output A and B. Outputs are active
servo-balanced.
Mic/line inputs and main outputs use Euroblock connectors,
allowing bare wire to be easily connected to the mixer without
soldering.
quality solution for your permanent install mixing needs. The
1662A features six (6) microphone or line inputs with 20dB pad,
TRS insert, and +48V phantom power. Each input channel has
up to 60dB input gain, separate bass & treble controls, an output
assign switch for sending signal to either or both outputs, and a
level control. Stereo summing inputs on channels 5 & 6 provide
a convenient way to add typical program sources from DVD, CD,
or tape. The summing inputs can be connected for stereo-to-
mono or stereo-to-stereo operation. A full 11-segment LED
array indicates levels on output A and B. Outputs are active
servo-balanced.
Mic/line inputs and main outputs use Euroblock connectors,
allowing bare wire to be easily connected to the mixer without
soldering.
APPLICATIONS
The 1662A is useful for most sound reinforcement or public
address needs. It is perfect for school gymnasiums, meeting
rooms, Houses of Worship, lecture halls, and auditoriums. The
1662A can be set up as two mixers in projects where budget is
tight. It can also be a stereo mixer for small, portable systems.
address needs. It is perfect for school gymnasiums, meeting
rooms, Houses of Worship, lecture halls, and auditoriums. The
1662A can be set up as two mixers in projects where budget is
tight. It can also be a stereo mixer for small, portable systems.
GENERAL SPECIFICATIONS
TOTAL HARMONIC DISTORTION:
<0.01% @ +4dBu . . . 20Hz – 20kHz
<0.01% @ +4dBu . . . 20Hz – 20kHz
INTERMODULATION DISTORSION (SMPTE IM)
<0.01% @ +4dBu . . . 20Hz – 20kHz
<0.01% @ +4dBu . . . 20Hz – 20kHz
HUM & NOISE (20Hz – 20kHz noise bandwidth)
<-127dBu equivalent input hum and noise
<-98dBu residual output noise; all level controls at min.
<-95dBu main outputs; Master / all Channel levels at min.
<-74dBu main outputs; Master / all Channel levels at nom
<-127dBu equivalent input hum and noise
<-98dBu residual output noise; all level controls at min.
<-95dBu main outputs; Master / all Channel levels at min.
<-74dBu main outputs; Master / all Channel levels at nom
MAXIMUM VOLTAGE GAIN:
+84dB . . . Mic/Line Input-to-Main Output
+84dB . . . Mic/Line Input-to-Main Output
FREQUENCY RESPONSE
+0.5/-1.0dB . . . 20Hz – 20kHz
+0.5/-1.0dB . . . 20Hz – 20kHz
EQUALIZATION:
Low . . . +12dB at 90Hz (shelving)
High . . . +12dB at 8kHz (shelving)
Low . . . +12dB at 90Hz (shelving)
High . . . +12dB at 8kHz (shelving)
CROSSTALK:
<-70dB . . . Adjacent Inputs, 20Hz – 20kHz
<-70dB . . . Adjacent Inputs, 20Hz – 20kHz
VU METERS
Main Outputs . . . -21 to +6 VU (0VU = +4dBu)
Main Outputs . . . -21 to +6 VU (0VU = +4dBu)
PEAK INDICATORS
Peak clip indicator on each input channel and main
outputs;
Illuminates 3dB below clipping
Peak clip indicator on each input channel and main
outputs;
Illuminates 3dB below clipping
MAXIMUM LEVELS
Input Level, +20dB gain, pad in . . . +22dBu
RCA Input Level . . . +10dBu
Output Level . . . +23dBu
Input Level, +20dB gain, pad in . . . +22dBu
RCA Input Level . . . +10dBu
Output Level . . . +23dBu
PHANTOM POWER
+48VDC applied to all mic inputs, switchable on rear panel.
Maximum total current draw = 60ma
Maximum single channel current draw = 10ma
Gradual power-up and down to eliminate “pops”
+48VDC applied to all mic inputs, switchable on rear panel.
Maximum total current draw = 60ma
Maximum single channel current draw = 10ma
Gradual power-up and down to eliminate “pops”
DIMENSIONS
19”W x 3.5”H x 6.6”D (48.3cm x 8.9cm x 16.8cm)
19”W x 3.5”H x 6.6”D (48.3cm x 8.9cm x 16.8cm)
WEIGHT
12lbs (5.4kg) . . . shipping weight
10lbs (4.5kg) . . . net weight
12lbs (5.4kg) . . . shipping weight
10lbs (4.5kg) . . . net weight
POWER REQUIREMENTS
120VAC nominal, 93 VAC min, 50 – 60 Hz, 20 watts
(240 VAC available)
120VAC nominal, 93 VAC min, 50 – 60 Hz, 20 watts
(240 VAC available)
* unless otherwise stated, specification conditions are:
150 ohm source, Gain switch set at “+40”, all other controls
set at nominal.
150 ohm source, Gain switch set at “+40”, all other controls
set at nominal.