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15594A Low Pass Crossover/Equalizer Module

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SPECIFICATIONS


Input Type: Electronically balanced
Input Impedance: 15 kQ unbalanced 30 kQ balanced
Maximum Input Level: + 18 dBu
(Ref. 0 dBu = 0.775 V rms)
Common Mode
Rejection Ratio: >60 dB
Output Type: Unbalanced
Output Source :
Impedance: <5052
Minimum Load
Impedance: 2 kQ
Total Harmonic
Distortion: <0.01"/<, at 0 dBu output over full bandwidth
Intermodulation
Distortion (SMPTE): <0.01% at 0 dBv output
Noise Floor: < -90 dBu
Dynamic Range: >108 dB
Low Pass Crossover Filter:
Type: 3rd order Butterworth
Slope: 18 dB/oct (60 dB/dec)
Low Frequency

Equalizer:
Type: 2nd order underdamped filter
Slope: 12 dB/oct (40 dB/dec) Connector:
Type: Octal, male with centering post
Wiring: Pin 1 = input (-)
Pin 2 = circuit common Pin 3 = + 15 VDC Pin 4 = chassis ground
Pin 5 = -15 VDC
Pin 6 = input (+)
Pin 7 = no connection Pin 8 = low pass output
Power Requirements: ~ 15 VDC, 25 ma (supplied by amplifier)
Dimensions: 1.6 in H x 1.6 in W x 2.0 in D 4.07 cm H x 4.07 cm W x 5.08 cm D
Color: . Black ,
Weight: - 1.6 oz (45 gr)
Available Models:
15594A-125 125 Hz crossover frequency
15594A-500 500 Hz crossover frequency
15594A-800 800 Hz cros~5b-ver frequency
15594A-1250 1,250 Hz crossover frequency
Included Accessories: one "flat" submodule providing either a 16 Hz or 32 Hz low frequency roll-off at the rate of 12 dB/oct (16-pin DIP plug)
Support
Documentation: Equations to calculate new crossover frequency Equations to modify LF EQ curve
Optional
Woofer/Enclosure Equalization
Submodule ' • Accessories.
(16-pin DIP plug):
9600A: Blank submodule for custom equalization
ALTEC LANSING continually strives to improve their products and performance. Therefore specifications are subject to change without notice.

ARCHITECT'S AND ENGINEER'S SPECIFICATIONS


The low pass filter shall be a third-order Butterworth for maximally flat response with an 18 dB/ oct stopband attenuation rate, and shall have a fixed corner frequency located on one of the standard ISO frequencies. The filter shall have an electronically balanced input, an unbalanced output, and a male octal plug, and be fully compatible, both physically and electrically, with ALTEC LANSING's Anniversary Series of power amplifier products.

The filter shall include additional circuitry and a female connector socket for the acceptance of an optional plug-in equalizer submodule assembly. The circuitry, in combination with the submodule assembly, shall equalize specific woofer/ enclosure combinations for "step-down" operation:
The low pass filter and equalizer shall be the ALTEC LANSING Model 15594A-125, 15594A500, 15594A-800, or the 15594A-1250.



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