Solid State Logic XR622 F.1 Introduction, F.2 F.3, Connection, Operation, X-RackMaster Module

X-Rack Master Module

F.Master Module

F.1 Introduction

Used in conjunction with the XR623 X-Rack Line Return module, the XR622 X-Rack Master module provides a complete small scale mix and monitor system for studios seeking a compact solution for mixing and monitoring in the analogue domain. A single X-Rack can provide up to 28 line level inputs. Additional racks can be connected via the ‘MIX BUS LINK’ connector on the rear of the X-Rack unit, allowing additional inputs to be added to the system if required.

X-Rack units prior to serial number XRK0110 are not equipped with a ‘MIX BUS LINK’ connector.

The X-Rack Total Recall system allows session setups to be recalled instantly and can be archived as a MIDI SysEx dump to any MIDI sequencer. The monitor section controls can also be controlled remotely using MIDI controller commands from any MIDI controller. Up to three racks can be connected to an AWS 900 or AWS 900+ and integrated with the AWS 900 Total Recall system via the serial port. Connecting the MIX and REC outputs of the XR622 to the MIX and REC Insert Returns of the AWS 900 and selecting INSERT SUM mode allows almost unlimited expansion of the number of line level inputs to the console.

F.2

F.3

F.3.1

Connection		The rear panel of the module carries a pair of 25-way ‘D’ connectors. The left-hand
INS RTN	INS SND
EXT	MIX	connector provides the main and alternate Monitor outputs as well as a stereo External
ALT MON FOL MON		Input and the Mix Bus Insert Return. The right-hand connector provides Mix and
MON	REC	Record Bus outputs along with the Mix Bus Insert Send and a Follow-Monitor (pre-
		level control) output.
		All outputs (apart from the headphone output) operate at a nominal level of +4dBu
		and are configured to drive standard line level inputs. Level compensation for feeding
		600Ω inputs from the Bus, Insert and Monitor outputs is provided by removable
		jumpers – refer to Section F.3.4 for details.	XR622
			SEL
				0
				3
				6
				9
Operation				12
				48
				15
				18
				24
				30
As well as a compact stereo monitor section, the X-Rack Master module contains the			MIX	36
				MONITOR
mix amps and outputs for the X-Rack’s internal Mix, Record and Solo/AFL busses.				42
			REC	1
The Mix bus is intended to be used as the main mix bus and includes a balanced			MON
insert point immediately before the Mix level control. The Record bus provides a			SUM
				MIX LEVEL
direct path to a DAW (or any other recorder), allowing the Mix bus to be used to
			INS
provide a monitor mix while recording one or more inputs via the Record bus.
			SUM
If the X-Rack is fitted with XR621 Mic Amp modules these can be routed directly to			INS
			MONITOR
the Record bus using the ‘REC L’ and ‘REC R’ switches on the XR621 module.
			MIX	AFL SOLO
Mix Section 1			EXT
			REC
This section carries all of the Mix bus controls; the ‘MIX LEVEL’ control allows the			ALT	LEVEL
overall gain of the Mix bus to be adjusted (the Record bus level is fixed).
The ‘INS’ switch brings the Mix Bus Insert Return into circuit (the Insert Send is			MONO
permanently active) whilst the ‘SUM REC’ and ‘INS SUM’ switches allow the			DIM
Record bus and Insert Return to be summed with the Mix bus to allow for summing
of additional mix sources.			CUT
The ‘MON’ switch enables the Mix output to be replaced with whichever source(s)
have been selected for the Monitor section.

Page F-1