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Operational Manual
Version 1.0 – October 2004
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Operational Manual Contents Copyright 2004. All rights reserved. The information in this document is subject to change without notice. Audient plc makes no warranty of any kind with respect to the material in this document and shall not be liable for errors contained herein or for incidental or consequential damages related to the use of the material. No part of this document may be reproduced without the prior written consent of Audient plc. © Audient
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Operational Manual Contents Thank you for buying this audient product. As can be found throughout the Audient range, your Sumo has been painstakingly designed and lovingly nurtured to give you years of productive, reliable, mix fattening performance. To make the most of this, we suggest that you have a good look through this manual before you get started. The safety and installation information will help you to set your Sumo up with the minimum of danger and hassle, while
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Operational Manual Contents CONTENTS SAFETY INFORMATION 5 INSTALLATION 7 OVERVIEW – THE BENEFITS OF ANALOGUE SUMMING 8 PLUGS AND SOCKETS Analogue audio interfaces 10 Digital interfaces 11 HOOKING UP 12 KNOBS, BUTTONS AND FLASHY LIGHTS Input section 15 Mix Compressor/Peak Limiter 16 Mix master/monitor section 17 Digital section 18 SUMO SURGERY (TROUBLESHOOTING) 19 Why can’t I hear anything? 20 ACCESSORIES 21 SPECIFICATIONS 21 WARRANTY 22 © Audient v1.0 10/2004 4
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Operational Manual Important safety instructions IMPORTANT SAFETY INSTRUCTIONS CAUTION ATTENTION RISK OF ELECTRIC RISQUE DE SHOCK CHOC DO NOT OPEN NE PAS ENLEVER WARNING THIS EQUIPMENT MUST BE EARTHED. DO NOT EXPOSE TO RAIN OR MOISTURE. Please read all of the following instructions and save them for later reference before attempting to connect your Sumo to the AC power source. © Audient v1.0 10/2004 5
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Operational Manual Safety Information SAFETY INFORMATION EARTH This unit is connected via its power cord to the mains safety earth. NEVER OPERATE THE UNIT WITH THIS EARTH CONNECTION REMOVED. COVERS DO NOT remove the covers. Refer servicing to qualified personnel only. VOLTAGE Sumo is set to operate only at the voltage shown on the rear panel. CHECK that the correct voltage is available before connecting the AC mains supply. FUSES CHECK that the fuse fitted is of th
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Operational Manual Installation INSTALLATION Unpacking Mechanical Installation Your Sumo has been carefully and Care should be taken not to obstruct meticulously tested before despatch. the unit’s ventilation holes. Adequate ! airflow must be provided within rack Please check for any signs of transit cases above and below the unit to prevent damage. If any signs of mishandling are overheating. found please notify the carrier and your dealer immediately. Mains Power S
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Operational Manual Overview – The Benefits of Analogue Summing OVERVIEW – THE BENEFITS OF ANALOGUE SUMMING Having bought the unit, you’ve probably figured out that Sumo is a high-resolution So what’s so special about the mix bus on summing amplifier with stereo bus a big console? Well… only the highest of compressor and peak limiter, not to high end, large format consoles employ mention a handy little monitor section. balanced mix buses to reduce crosstalk Nevertheless, here are a f
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Operational Manual Overview – The Benefits of Analogue Summing This means that Sumo can take whatever Optional Extras you throw at it without distortion or noise. If your Sumo is equipped with a digital card, you’ll be able to output a stream of Another feature of large format studio lovely 0s and 1s at rates of up to 192kHz consoles is the inclusion of a compressor on both AES/EBU and S/PDIF over the main stereo bus. Consequently, standards. the bus compressor from the ASP8024
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Operational Manual Plugs and Sockets PLUGS AND SOCKETS Audio Interfaces The 16 inputs are connected via two Tascam DA88 type female D-Sub connectors. Interconnect cables are readily available in pre-wired form from Audient and from any good cable Inserts are connected via TRS (Tip-Ring- manufacturer. You can get these with Sleeve) jacks. Rather than an unbalanced different tail types to suit your other loop on a single cable, there are separate equipment, see the accessories s
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Operational Manual AES/EBU on XLR, and S/PDIF on Pin conventions RCA (that’s a phono plug to you and I). To unbalance the outputs of the Sumo the Output on both connectors, for all sample -ve Pin should be connected to its rates is fixed at 24bit. adjacent 0v pin at Sumo’s output. A word clock input is also provided for Similarly, inputs from unbalanced sources situations where Sumo is not the clock should be connected via twin screened master. This is connected via BNC.
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Operational Manual Hooking Up HOOKING UP Before starting, it’s always a good idea to This stage is pretty important, make sure that your monitor speakers are because you’re converting back muted and/or turned off – this ensures into the digital domain and the that nothing gets popped or blown up quality of this conversion will when cables are being fiddled with and effect your overall mix, so make while power is turned on. sure to use the best converters you have available. If you
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Operational Manual Hooking Up Summing Inputs Mix Inserts Monitor Outputs Main Outputs Figure 1: Analogue Connections © Audient v1.0 10/2004 13 External Input (1+2) Expander Inputs (3-8)
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Operational Manual Hooking Up Clock Master Word Clock Word Clock S/P DIF AES/EBU Figure 2: Digital Connections © Audient v1.0 10/2004 14
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Operational Manual Knobs, Buttons and Flashy Lights KNOBS, BUTTONS AND FLASHY LIGHTS Input Section The ‘Post Dyn’ switch allows you to MONO Buttons – Under normal alterthe position of the inserts in the circumstances, all of the odd numbered chain: before (pre) or after (post) the channels entering Sumo are routed to the internal compressor and limiter. left side of the bus, while even numbers are routed to the right. Of course, this is going to sound a little unusual if you
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Operational Manual Knobs, Buttons and Flashy Lights MIX COMPRESSOR/PEAK LIMITER put in above the threshold to get one DYNAMICS ‘In’ Switch – Puts more dB out. The greater the number, the both compressor and limiter in circuit. harder the compression. The diagram When the dynamics are out, they are hard below shows how the compressor affects bypassed, clearing the signal path of any the input/output ratio at different ratio unnecessary components. settings. The off position allows
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Operational Manual Knobs, Buttons and Flashy Lights Adjusting this will vary the way the Be particularly careful of peak limiting: reduction in excess of compressor handles transient sounds. 6dB may well cause adverse ! effects such as chewing up your top end. Where control of unruly transients is required, a faster attack will clamp MIX MASTER / MONITOR down on peaks. However, if larger amounts of gain reduction Section are applied, unnecessarily fast attack times may
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Operational Manual Knobs, Buttons and Flashy Lights Digital Section SAMPLE RATE – Rates of 44.1, 48, 88.2, 96, 176.4 and 192kHz are supported. The desired sample rate can be selected by pressing the select button repeatedly whereby the sample rate will cycle through internal rates and then the external Word Clock source. Lock – When the external clock source is selected, the select switch will flash until the converters are synchronised, or ‘locked’, with the external source.
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Operational Manual Sumo Surgery (Troubleshooting) SUMO SURGERY (TROUBLESHOOTING) Symptoms Diagnosis Remedy The power light is off. The fuse is blown. The power connector at the back contains the main fuse. Try changing this, using a correctly rated replacement for your local mains voltage (see back panel). The power light is off. The unit is set for the Ensure that the red switch wrong mains voltage. on the back of the unit matches your local mains voltage. Make sure the unit i
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Operational Manual Why can’t I hear anything? START HERE Put the Is there No Yes Yes "Insert In" button in Is there an anything showing on the the off position. Does insert attached? main meters? this help? No Yes No Check that the inserted device is passing audio and is connected correctly. Problem Solved. Make sure Turn the Yes Turn that your source is playing monitor volume up. back. Does this the mix gain Does this help? No Yes help? up. Does this Yes Yes help? No No Check the connecti
