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I/O DATA

Inputs

technology

 

 
 

impedance

max. level

reference level

Outputs

technology 
 
 

impedance

max. level

reference level

electronically balanced,  
transformer-like behavior 
(either hot or cold may be 
connected to ground)

> 30 kOhm

> +26 dBu

+6 dBu/+4 dBu

+/- 15…17V (from stablilized, noisefree DC Supply)

< 250mA (i.e. 125mA max. per slot)

electronically balanced,  
transformer-like behavior 
(either hot or cold may be 
connected to ground)

50 ohms

> +26 dBu

+6 dBu/+4 dBu

Power

DC Voltage

 

DC Current

 

Connector Pin-Out

Card Edge 15 pin 0.156“ space - compatible to EDAC type 306-015-520-102

(Contact no. 01 is located at top)

01

 Ground/Case

02

  

Bal. Audio

03

  

n.c.

04 

 

Bal. Audio Output -

05

  

Shield

06

  

n.c.

07

  

n.c.

08

  

Bal. Audio Input -

09

  

n.c.

10

  

Bal. Audio Input +

11

 n.c.

12

  

+15…+17VDC

13

  

0V / Common

14

  

-15…-17VDC

15

  

n.c.

EQ1 occupies two slots in the API rack.

The left card edge connector – seen from the front – 
comprehends left channel connections.  
The right connector serves for the right channel.

Supply Inputs incl. Ground/Case always have to be 
fed to both connectors even if only one channel  
is used!

!

Summary of Contents for EQ1

Page 1: ...Z HL EQ1 The legendary Z hl EQ from the state of the art mixing console AM1 in the API 500 format...

Page 2: ...m an API 500 series rack you may use a gadget on the front panel Remove the M3 countersunk screw in the LO MID section In place of this screw screw in the enclosed knurled head screw with M3 thread ge...

Page 3: ...ingle Band Switching Individual ON OFF switching direct comparison each band ON OFF while leaving GAIN pot in position minimizing noise preserving signal integrity by switching OFF unused bands Twin C...

Page 4: ...ghout signal chain HI EQ gain range 15 dB or 5 dB bypass in mid position potentiometer center sense logic individual ON OFF switch frequency 2 kHz to 20 kHz BELL SHELF characteristic switchable for ef...

Page 5: ...nge switchable to 40 Hz to 400 Hz 5 adjustable Q factor LO EQ gain range 15 dB or 5 dB bypass in mid position potentiometer center sense logic individual ON OFF switch frequency 30 Hz to 300 Hz BELL S...

Page 6: ...Bu 6 dBu 4 dBu Power DC Voltage DC Current Connector Pin Out Card Edge 15 pin 0 156 space compatible to EDAC type 306 015 520 102 Contact no 01 is located at top 01 Ground Case 02 Bal Audio Output 03...

Page 7: ...o do such checks 13 When shipping use a package which protects the equipment from environmental impact such as mechanical shock or humidity 14 The equipment applies to EU directives RoHS and WEEE Disp...

Page 8: ...le Q factor LO MID fully parametric gain range selectable 5 dB or 15 dB bypass in mid position individual bypass switch frequency 200 Hz to 2 kHz freq range switchable to 40 Hz to 400 Hz 5 adjustable...

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