Altec Lansing 1593C User's Manual
Contents
1. ALTEC LANSING LISTED 209J DESCRIPTION The 1593C Power Amplifier is a solid state unit delivering 50 watts of power at less than 1 total harmonic distortion THD from 50 Hz to 12 kHz The amplifier provides outputs for 4 ohm 8 ohm and 16 ohm loudspeakers plus a 70 volt line out put for distribution systems In addition to the high impedance input the amplifier has an octal socket to accept a line isolation transformer A selectable high pass filter is included for use in speech systems Cut off frequency of the filter is AS S 1593C POWER AMPLIFIER 300 Hz The 1593C is capable of operation from a 120V or 240V ac source or a negative grounded 28V dc source and features silent automatic transfer to dc operation if ac power fails Designed for rack mounting the 1593C occupies three vertical units of rack space 51 4 A hinged front panel allows servicing without removing the amplifier from the rack PRINTED IN U S A 989 SPECIFICATIONS Type Power Amplifier 61 dB 0 8 volt rms for rated output 50 watts at less than 1 THD 50 to 12 000 Hz 1 dB 20 to 20 000 Hz at 1 watt output 1 dB 50 to 12 000 Hz at rated output Gain Input Sensitivity Power Output Frequency Response 15 000 ohms potentiometer 600 ohms balanced with 15095A plug in transformer 15 000 ohms balanced with 15335A transformer 4 8 16 100 ohms 14 20 28 25V 40 watt 70 volts Les2. s than 10 of nominal load impedance 38 dBm or 85 dB below rated output Input Impedance Load Impedance Load Voltage Output Impedance Noise Level Power on off switch Potentiometer continuously variable composition High pass filter switch rear Controls 100 120 220 240V ac 50 60 Hz 13 watts at zero signal 85 watts at 17 watts output 145 watts at 50 watts output OR Power Supply ARCHITECT S AND ENGINEER S SPECIFICATIONS The power amplifier shall be capable of operating from a 100 120 220 240V ac line or from a 24 28V dc battery The power supply shall auto matically transfer the power to dc operation if ac power fails An octal socket shall be provided on the rear panel for installation of an accessory line transformer The front panel shall be hinged to permit access to the chassis interior without removing the amplifier from the equipment rack The power amplifier shall meet the following per formance criteria Gain 61 dB Input sensitivity 0 8V rms for rated output Power output 50 watts at less than 1 THD from 50 Hz to 12 kHz Fre quency response at 1 watt output 1 dB from 20 Hz to 20 kHz and 1 dB 50 Hz to 12 kHz at rated ALTEC 24 28 volts dc battery is ground 0 2 amp at zero signal 2 5 amps at 17 watts output 4 0 amps at 50 watts output Operating Temperature Range Up to 50 C 131 F ambient Automatic transfer from ac to dc power in the event of ac po
3. wer failure Dissipation sensing device for protection of output transistors High pass filter 300 H2 Special Features Dimensions 514 Hx19 Wx 734 D 13 33 cm H x 48 26 cm W x 18 73 cm D Weight 23 pounds 10 45 kg Color Black Accessories must be ordered separately 15095A Plug in Line Transformer 15335A Plug in Bridging Transformer Design and Underwriters Laboratories list Performance ing 209J for Commercial Audio Systems File E8783 N Approvals l Underwriters Laboratories list ing 89MO for Fire Protective Signaling Systems File 2925 N output Input impedance 15 000 ohms potenti ometer 600 ohms balanced with 15095A plug in transformer 15 000 ohms balanced with 15335A transformer Load impedance 4 8 16 and 100 ohms Load voltage 14 20 28 25V 40 watt and 70 volts Output impedance less than 10 of nominal load impedance Noise level 38 dBm or 85 dB below rated output Operating tempera ture range up to 55 C 131 F ambient Dimen sions 54 H x 19 W x 73s D Weight 23 pounds Color black The power amplifier shall be Underwriters Labo ratories listed for use in commercial audio systems and fire protection signaling systems LANSING P O BOX 26105 OKLAHOMA CITY OK 73126 0105 U S A 1989 ALTEC LANSING CORPORATION REVISION 6 AL 1782 42 07 027036
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