Behringer Ultragraph Digital DEQ1024 Owner's Manual

ULTRAGRAPH DIGITAL DEQ1024

For unbalanced use, pin 1 and pin 3 

have to be bridged

1 = ground/shield

2 = hot (+ve)

3 = cold (-ve)

1

2

3

1

2

3

Fig. 4.1: XLR connections

Fig. 4.2: 1/4" TS connector

For connection of balanced and unbalanced plugs,

ring and sleeve have to be bridged at the stereo plug.

Fig. 4.3: 1/4" TRS connector

Connect the insert send with the input and the

insert return with the output of the effects device.

Fig. 4.4: 1/4" TRS connector for insert send/return applications

The AES/EBU interface whose name is derived from the Audio Engineering 

Society and the European Broadcasting Union, is mainly used in professional 

studio environments and broadcasting studios for the transmission of digital 

signals, also over greater distances. The connection is made via balanced XLR 

cables with a wave resistance of 110 ohms. Cables can be up to 100 m long. 
The interface complies with the AES3 format, which allows for the two-channel 

transmission of signals with a resolution of up to 24 bits. The signal has an auto-

clock and auto-synchronization feature (important when several digital devices 

are used). An additional wordclock connection between DEQ1024 and connected 

AES/EBU equipment is therefore not required. The sample rate is not fixed and 

can be chosen freely. Typical rates are 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz. 

The AES/EBU interface is largely compatible with the popular S/PDIF interface. 

A connection can be made using an adapter.

Type 

electronically balanced

Connector XLR
Impedance 

22 kΩ at 1 kHz

Max. input level 

+12 or +22 dBu, switchable

CMRR 

80 dB typ.

Type servo-balanced
Connector XLR
Impedance 

100 Ω at 1 kHz

Max. output level 

+12 or +22 dBu, switchable