Altec Lansing Industrial Professional Sound Products Spec site

ALTEC LANSING INDUSTRIAL PROFESSIONAL SOUND PRODUCTS POWERED MIXER LIST

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1707C & 1715C Six Channel Mainframe Mixer/Power Amplifier

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The mixer also contains two auxiliary input channels for high-impedance line or tape sources. These channels have independent monitor sends, pan pots, and slide faders.

1783

Description


The Altec Lansing 1783 Line Output modules provides the drive capability necessary to interface with other professional equipment. The electronically balanced output stage provides a low source impedance to drive subsequent stages. If transformer isolation is necessary,the module's circuit board accomodates the optional PC-mount 1786 Output Isolation Transformer. The continuously variable output level control is local to the module permitting independent adjustment of each line output.
1783 Specifications

Output Source Impedance: <50 i2

Nominal Output Level
/Load Impedance: +8 dBm
(Ref. I kHz, 0 dBm = 0.775 Vrms with 600 fl load, output level control at maximum, 100 mVrms input)

Maximum Output
Level: +24 dBm

Frequency Response: (Ref. I kHz, +8 dBm output)
±1 dB: 20 Hz - 25 kHz

Total Harmonic
Distortion ('fHD): (Ref. I kHz, +8 dBm output, output level control at maximum, 30 kHz low pass filter)
20 Hz - 20 kHz: <0.05%

Signal to Noise Ratio: >88 dBm
(Below +8 dBm output, output level control at maximum, A-weighted)
Power Requirements: ± 18 VDC at 20 mA (supplied by mainframe)

1786 Output Isolation Transformer Impedance Ratio: 1:1 (600 SZ:600 11)

Frequency Response: (Ref I kHz, + 18 dBm output)
±1 dB: 20 Hz - 20 kHz

Total Harmonic
Distortion (773D): Ref I kHz, + 18 dBm output)
20 Hz - 20 kHz: <0.5%
50 Hz - 20 kHz: <0.1%

Special Ordering Instructions
NOTE: The modules listed below are required for use with the 1707C/l TI SC and must be ordered separate from the mainframe.
Plug-in Input Modules:
1780A Mic/Line Input module
1780AT Mic/Line Input module with 10 ksZ
bridging transformer installed 1781A Programmable Input module 1781AT Programmable Input module with
model 1785A 600 0 to 10 kSZ
isolation transformer installed 1785A 600 fl to 10 kS2 Input Isolation
Transformer for installation on
existing model 1781A
Plug-in Output Module:
1783 Line Output module
1786 Output Isolation Transformer
Plug-in EQ Module:
8751A Programmable 14-Band EQ module

NOTE: Each module selected requires one of the following connectors also be ordered:


 

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