17BASS V-AMP LX1B/BASS V-AMP PRO LX1B PRO User Manual

8.5AES/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