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5 aes/ebu and s/pdif standards, Specifications – Behringer LX1B PRO User Manual

Page 17

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BASS V-AMP LX1B/BASS V-AMP PRO LX1B PRO User Manual

8.5 AES/EBU and S/PDIF standards

In general, there are two different standards when the subject is digital signal

processing. AES/EBU is the professional, balanced connection with XLR jack

connectors. This interface is based on two identical protocols published in

November 1985 by the European Broadcast Union (EBU Tech. 3250-E) and in

December 1985 by the Audio Engineering Society (AES3-1985). Sony and Philips

oriented themselves around this standard and developed an additional interface

with unbalanced signal routing and several important differences that primarily

have to do with allocating channel status bits. This standard, named after the

two com-panies (S/PDIF = Sony/Philips Digital Interface) uses either cinch jacks

or a digital connection with optical cables. It is relevant mostly because of the

attempt to introduce copy protection embedded in the IEC 958 norm. This norm

describes both the re-worked AES/EBU interface that has been modified to work

with the S/PDIF format and described as IEC 958 Typ I (Professional). The formal

description of the S/PDIF interface is IEC 958 Typ II (Consumer).

9. Specifications

BASS V-AMP

Audio Inputs

Instrument Input

1/4" TS connector, unbalanced

Input impedance

1 MΩ

Max. input level

+3 dBu

AUX IN

1/4" TRS connector, balanced

Input impedance

50 kΩ

Audio Outputs

Analog Line Outputs L/R

1/4" TS connectors, unbalanced

Output impedance

approx. 680 Ω

Max. output level

+20 dBu

Headphones

1/4" TRS connector, unbalanced

Max. output level

+15 dBu/100 Ω (+23 dBm)

MIDI

Type

5-pole DIN jacks IN, OUT/THRU

Digital Signal Processing

Converter

24-bit Delta-Sigma,

64/128-times oversampling

Dynamics A/D

100 dB @ preamp bypass

Dynamics D/A

92 dB

Sample rate

31.250 kHz

DSP

100 Mips

Delay time

max. 1023 ms stereo/sampler delay:

15.36 s

Run time (Line In  Line Out)

approx. 5 ms

Display

Type

2-digit 7-segment-LED display

Power Supply

Mains Voltage

USA/Canada

120 V~, 60 Hz

U.K./Australia

240 V~, 50 Hz

Europe

230 V~, 50 Hz

China/Korea

220 V~, 50Hz

Japan

100 V~, 50 - 60 Hz

Power consumption

13 W

Mains connection

external power supply

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