M-AUDIO 2626 Manuel D’Utilisation

User Guide

11

ProFire 2626

ProFire 2626 can operate at high sample rates including 88 2/96 kHz and 176 4/192 kHz   However, the number of 
available inputs and outputs is reduced when operating at these rates and certain input and output ports are disabled as 
a result (see the “About S/MUX II and S/MUX IV modes” section for additional information)   Furthermore, at high sample 
rates, the number of software returns is automatically reduced to match the number of available hardware outputs and to 
preserve system resources   This section describes how channels are affected at high sample rates 

Note that since Windows and OS X operating systems handle audio differently, each operating system is described 
separately 

An ADAT port is designed to transfer eight channels of audio at sample rates up to 48 kHz   When operating at higher 
sample rates, the port must operate in S/MUX II (up to 96 kHz) or S/MUX IV (up to 192 kHz) mode   S/MUX II mode 
combines pairs of ADAT channels (i e  channels 1/2

→1, 3/4→2, 5/6→3, 7/8→4) to create four high bandwidth channels 

capable of transferring high resolution audio up to 96 kHz   S/MUX IV mode combines groups of four ADAT channels  
(i e , 1-4

→1, 5-8→2) to create two high bandwidth channels capable of transferring high resolution audio up to 192 kHz 

44 1-48 kHz

8

88 2-96 kHz

4 (S/MUX II)

176 4-192 kHz

2 (S/MUX IV)