User manual M20.
IMPORTANT SAFETY INSTRUCTIONS The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
IMPORTANT SAFETY INSTRUCTIONS EMC / EMI. This equipment has been tested and found to comply with the limits for a Class B Digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in residential installations. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
TABLE OF CONTENTS INTRODUCTION Important Safety Instructions & Certificate of conformity . . . . . . . . . .a-b Table of Contents . . . . . . . . . . . . . . . .3 Introduction . . . . . . . . . . . . . . . . . . . . .4 Front Panel Overview . . . . . . . . . . . . .6 Rear Panel Overview . . . . . . . . . . . . .8 Signal Flow Diagram . . . . . . . . . . . . . .9 Typical Setups . . . . . . . . . . . . . . . . .10 OPERATION Control Section . . . . Editing Parameters . . Recall . . . . . . . . . . . . Store . .
INTRODUCTION Thank you for purchasing the Mach M20.04 digital system controller from Mach Speakers A/S. Every effort has been made to ensure that our products meet your requirements and we sincerely hope that we will live up to your expectations. The Mach M20.04 has been designed for superior audio quality and flexible system configuration and is intended to optimize the performance of Mach loudspeaker systems. The Mach M20.
FRONT PANEL OVERVIEW POWER On/Off The MACH M20.04 uses a switchmode power-supply that accepts from 100-240V AC. INPUT METERS For optimal performance the Input level indication should be around -5dB and occasionally peak at 0dB. If the CLIP indicator is lit the Input signal is too hot. Input sensitivity can be set in the Level menus accessed via the INPUT A/B keys, or via the Setup menu. DISPLAY 32 character LCD displaying various operating parameters.
FRONT PANEL OVERVIEW Input A Input B OUTPUT On/Off keys on the Output for each of the four channels. In Edit mode these keys give access to edit the Output level parameter. RECALL In Recall mode you select which preset to recall using the ADJUST encoder and press ENTER to confirm. STORE Press to STORE. Select a storing location using the ADJUST wheel and press ENTER to confirm. ENTER The ENTER key is used to confirm various operations such as Store and Recall.
REAR PANEL Balanced Inputs on XLR for channels A/B. Use channel A for mono Input. 8 Balanced Outputs 1-4 on XLR. Digital S/PDIF In and Thru on RCA phono. Com port for data transfer. NO user application. Power Input. The internal switchmode powersupply accepts from 100 to 240 VAC.
SIGNAL FLOW 9
TYPICAL SETUPS Stereo Setup - with subs PROGRAM DISPLAY SCHEMATIC PARAM EQ ROUTING X-OVER EQ INPUT CLIP PAR EQ A IN A DELAY LINE LIMITER CONTROL OUTPUT 1 EQ 1 DLY 1 LIM 1 OUT 1 RECALL ENTER 2 EQ 2 DLY 2 LIM 2 OUT 2 STORE LOCK DIGITAL IN PAR EQ B Amp Out 2 Out 1 A 3 EQ 3 DLY 3 LIM 3 OUT 3 EDIT 4 EQ 4 DLY 4 LIM 4 OUT 4 SETUP B Subwoofer IN B B Out 4 0 -5 -10 -15 -20 -30 -40 dB Out 3 A Full Range Loudspeaker INPUT METERS Amp Subwoofer Full Range Loudspea
TYPICAL SETUPS Stereo Setup Input Source A/B PROGRAM DISPLAY SCHEMATIC PARAM EQ ROUTING X-OVER EQ INPUT 0 -5 -10 -15 -20 -30 -40 dB PAR EQ A IN A Studio B Surround LS+RS PAR EQ B LIMITER CONTROL OUTPUT EQ 1 DLY 1 LIM 1 OUT 1 RECALL ENTER 2 EQ 2 DLY 2 LIM 2 OUT 2 STORE LOCK 3 EQ 3 DLY 3 LIM 3 OUT 3 EDIT 4 EQ 4 DLY 4 LIM 4 OUT 4 SETUP B From I/p A Amp Out 2 Out 1 A From I/p A DELAY LINE 1 DIGITAL IN IN B B Out 3 CLIP A Out 4 INPUT METERS From I/p B Amp
SETUPS 3/4 way setup - Bi-Amp Mid/High Input A Input A SCHEMATIC PARAM EQ ROUTING X-OVER INPUT EQ DELAY LINE EQ 1 DLY 1 CONTROL OUTPUT LIM 1 INPUT METERS RECALL ENTER DLY 2 LIM 2 OUT 2 STORE LOCK EQ 3 DLY 3 LIM 3 OUT 3 EDIT 4 EQ 4 DLY 4 LIM 4 OUT 4 SETUP CLIP PAR EQ B A 0 -5 -10 -15 -20 -30 -40 dB SCHEMATIC PARAM EQ ROUTING Out 3 Out 3 EQ EQ 1 DELAY LINE DLY 1 LIMITER LIM 1 CONTROL OUTPUT OUT 1 RECALL ENTER 2 EQ 2 DLY 2 LIM 2 OUT 2 STORE LOCK 3 EQ 3
SETUPS System Distribution - with delay Input A Input A PARAM EQ ROUTING PAR EQ A IN A X-OVER EQ DELAY LINE LIMITER 1 EQ 1 DLY 1 LIM 1 2 EQ 2 DLY 2 LIM 2 CONTROL OUTPUT INPUT METERS RECALL OUT 2 STORE LOCK DIGITAL IN IN B PAR EQ B 3 EQ 3 DLY 3 LIM 3 OUT 3 EDIT 4 EQ 4 DLY 4 LIM 4 OUT 4 SETUP A 0 -5 -10 -15 -20 -30 -40 dB PARAM EQ ROUTING PAR EQ A IN A X-OVER EQ DELAY LINE LIMITER 1 EQ 1 DLY 1 LIM 1 2 EQ 2 DLY 2 LIM 2 CONTROL OUTPUT OUT 1 RECALL ENT
SETUPS Dual Source Mono - Dual Zone Source 1 INPUT METERS PROGRAM DISPLAY SCHEMATIC PARAM EQ ROUTING X-OVER EQ INPUT CLIP EQ 1 DELAY LINE DLY 1 LIMITER Subwoofer Type A (Zone 1) CONTROL OUTPUT LIM 1 OUT 1 RECALL ENTER 2 EQ 2 DLY 2 LIM 2 OUT 2 STORE LOCK 3 EQ 3 DLY 3 LIM 3 OUT 3 EDIT 4 EQ 4 DLY 4 LIM 4 OUT 4 SETUP 1 PAR EQ A IN A DIGITAL IN IN B PAR EQ B B Out 2 B Amp Out 1 A Out 3 A 0 -5 -10 -15 -20 -30 -40 dB Out 4 Loudspeaker Type A (Zone 1) Source 2
CONTROL SECTION 4 Now you may; - either press ENTER again to confirm and end the store operation - or dial in a preset name of your choice using the CURSOR keys and ADJUST encoder and then press ENTER. 5 The display indicates “Preset Stored” for a successful store operation. The Setup menu Editing Parameters Parameters in the Edit mode: • Press EDIT followed by the key corresponding to the block you wish to edit. • Use the CURSOR keys to select parameter and the ADJUST encoder to set the desired value.
FRONT PANEL OPERATION Auto Lock Range: Off, 10 seconds, 30 seconds, 60 seconds Lock Code Range: 0000-9999 “0000” is “no lock code” and the front panel keys can be locked/unlocked simply by using the LOCK key. The following section takes a look at the processing chain following the front panel layout from left to right. On the front panel this is called the “Schematic Section” Digital In Input Bypass A/B - Input Trim The MACH M20.04 accepts digital Input at 44.1 or 48kHz. Per default the MACH M20.
FRONT PANEL OPERATION Routing Routing section -as illustrated on the Front panel The Routing section is the “railway-station” in the signal chain. The signal present on Inputs A/B can via the 2x4 select switches be routed to none, any or all of the four Output channels. From the Routing section out the four channels are individually processed with separate XOver, EQ, Delay, Limiter and Output blocks. Notice that the front panel layout is identical to the actual signal flow through the unit.
FRONT PANEL OPERATION Parametric EQ (Speaker EQ) EQ 1-4 Gain Freq: Width/Slope: Hi Pass or Par EQ ±18 dB 20 Hz – 20 kHz 2nd order ±18 dB 20 Hz – 20 kHz 0,03 – 4 Oct Band 2 Par EQ ±18 dB 20 Hz – 20 kHz 0,03 – 4 Oct Band 3 Par EQ ±18 dB 20 Hz – 20 kHz 0,03 – 4 Oct ±18 dB 20 Hz – 20 kHz 2nd order ±18 dB 20 Hz – 20 kHz 0,03 – 4 Oct Band 1 Band 4 Type: Lo Pass or Par EQ Delay Line Delay for each speaker Line. Especially for compensating for speaker placement.
APPENDIX - TECHNICAL SPECIFICATIONS Analog Inputs Connectors: Impedance, Bal / Unbal: Max. / Min. Input Level @ 0 dBFS: Sensitivity Range @ 12 dB headroom: A to D Conversion: A to D Delay: Dynamic Range: THD: Frequency Response: Crosstalk: XLR 21 kOhm / 13 kOhm +24 dBu / 0 dBu -12 dBu to +12 dBu 24 bit, 128 x oversampling bitstream 0.70 ms / 0.65 ms @ 44.1 kHz / 48 kHz typ < -110 dB, 22 Hz to 22 kHz typ < -110 dB @ 1 kHz, -1 dBFS +0/-0.
Prod No. - E60504211 Supplier Mach Audio Ltd. www.mach-audio.
