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Audio Research EC-4

8J5A8475
8J5A8468
8J5A8465
8J5A8473
8J5A8478

Technic details

Specifications

Type:
3-way Electronic Crossover
Purpose:
Can be used for active two-channel and three-channel amplification
Standard frequencies:
100Hz and 1000Hz

[Crossover points]
Are selectable at:
50Hz
100Hz
400Hz
500Hz
800Hz
1kHz
1.5kHz
2kHz
3.5kHz
5kHz
7.5kHz
10kHz
The cutoff frequencies:
Are adjustable by changing the capacitors
Crossover slopes are adjustable:
6/12dB/octave below 200Hz
6dB/octave above 200Hz

Tube complement:
6 x ECC83 / 12AX7A
Power supply:
AC 120 / 240V, 50 / 60Hz
Year:
1972

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