MIXER OWNER'S MANUAL 10-CHANNEL STEREO MIC/LINE MIXER SRM-10X 10-Channel Stereo Mic/Line Mixer SRM-10X Congratulations on your choice of mixers -- you have purchased one of the finest compact mixing consoles on the market today. This unit was developed using the expertise of professional sound engineers and working musicians. You will find that your new NADY AUDIO SRM-10X has superior performance and greater flexibility than any other mixer in its price range. Please read this manual carefully to get the most out of your new unit. Thanks for selecting NADY AUDIO as your choice in mixing consoles. Date of Purchase Dealer's Name City State Zip Model # Serial # CONTENTS WARNING ..........................................................................................................................................................3 FEATURES ...................................................................................................................................................... 4 INSTALLATION.................................................................................................................................................. 5 1. Inspection ...................................................................................................................................................... 5 2. Power Connection.......................................................................................................................................... 5 CONTROLS AND CONNECTIONS .................................................................................................................. 6 1. Mono Input Section ........................................................................................................................................6 2. Stereo Input Section........................................................................................................................................8 3. Master Section ................................................................................................................................................9 a. Aux Sends/Returns Function and Operation .......................................................................................... 9 b. Main Mix Function and Operation ............................................................................................................9 c. Monitor Function and Operation ............................................................................................................10 d. Power Switches ......................................................................................................................................10 4. Connections..................................................................................................................................................11 SPECIFICATIONS............................................................................................................................................ 12 BLOCK DIAGRAM ..........................................................................................................................................13 NOTES ..............................................................................................................................................................14 2 WA R N I N G An equilateral triangle enclosing a lightening flash/arrowhead symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure which may be of sufficient magnitude to constitute a risk of electric shock. ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR An equilateral triangle enclosing an exclamation point is intended to alert the user to the presence of important operating and service instructions in the literature enclosed with this unit. IMPORTANT SAFETY INSTRUCTIONS When using this electronic device, basic precautions should always be taken, including the following: 1. Read all instructions before using the product. 2. Do not use this product near water (e.g., near a bathtub, washbowl, kitchen sink, in a wet basement, or near a swimming pool, etc.). 3. This product should be used only with a cart or stand that will keep it level and stable and prevent wobbling. 4. This product, in combination with headphones or speakers, may be capable of producing sound levels that could cause permanent hearing loss. Do not operate for a long period of time at a high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult an audiologist. 5. The product should be positioned so that proper ventilation is maintained. 6. The product should be located away from heat sources such as radiators, heat vents, or other devices (including amplifiers) that produce heat. 7. The product should be connected to a power supply only of the type described in the operating instructions or as marked on the product. Replace the fuse only with one of the specified type, size, and correct rating. 8. The power supply cord should: (1) be undamaged, (2) never share an outlet or extension cord with other devices so that the outlet's or extension cord's power rating is exceeded, and (3) never be left plugged into the outlet when not being used for a long period of time. 9. Care should be taken so that objects do not fall into, and liquids are not spilled through, the enclosure's openings. 10. The product should be serviced by qualified service personnel if: A. The power supply cord or the plug has been damaged. B. Objects have fallen into, or liquid has been spilled onto the product. C. The product has been exposed to rain. D. The product does not appear to operate normally or exhibits a marked change in performance. E. The product has been dropped, or the enclosure damaged. 11. Do not attempt to service the product beyond what is described in the user maintenance instructions. All other servicing should be referred to qualified service personnel. 3 F E AT U R E S The SRM-10X is the ultimate value in compact professional stereo mic/line mixers. This high quality unit is perfect for home and project studios, live club main and monitor mixing, video post-production studios, remote broadcasting -- in fact, anywhere superior performance, rugged reliability and ultra-versatility are needed in an audio mixer. With 10 channels (including 2 stereo AUX returns) and 2 tape inputs, the SRM-10X offers 12 total inputs in all. Features include: · Two mono channels with Trim, Bass, Treble, Aux Send, Pan, and Level controls, Low Cut, Pre/Post, PFL switches, and Inserts · Four Stereo channels: two with Level controls, Bass/Treble, Balance controls, Pre/Post Aux Send and PFL switches; two with Level controls and PFL switches · Tape In RCA jacks with level control and PFL switch · Tape Record Out RCA jacks · Individual channel Aux Send, Pre/Post selectable, and Master control · Left and Right Main unbalanced outputs with slider control · Mono output with slider level control and AFL switch · Dual 6-segment LED display bargraph meters · Ultra-low noise mic preamps · Full spectrum frequency response · Wide dynamic range with superior headroom · Separate Master Mix, Control Room and Headphone Outputs · Mic and Line Balanced inputs for optimum audio integrity · 1/4" TRS Stereo Control Room and Headphone outputs · Switchable global +48V phantom power on all mono inputs · Input Trim control on each mono channel · Pan pots on each mono channel and Balance pots on each stereo input · Peak LEDs on Mono channels · High-quality pots for all controls with Pan/Balance and EQ controls having center detents · High-strength steel casing and superior construction with only highest quality components for longest life and maximum reliability · External AC supply for optimum signal integrity and superior transient response 4 I N S TA L L AT I O N To ensure years of enjoyment from your NADY AUDIO SRM-10X mixing console, please read and understand this manual thoroughly before using the unit. 1. INSPECTION Your NADY AUDIO SRM-10X was carefully packed at the factory in packaging designed to protect the units in shipment. Before installing and using your unit, carefully examine the packaging and all contents for any signs of physical damage that may have occurred in transit. [Please note: Nady Systems is not responsible for shipping damage. If your unit is damaged, do not return to Nady, but notify your dealer and the shipping company (if shipped to you) immediately to make a claim. Such claims must be made by the consignee in a timely manner.] 2. POWER CONNECTION The SRM-10X is designed to operate with the supplied external power supply unit (PSU). Please make sure that the power unit supplied is marked for the correct voltage in your area (120VAC/60 Hz or 230VAC/50Hz). Power requirements for electrical equipment differ from area to area. In new installations and portable sound systems, or any situation in which the AC power is in question, it is wise to confirm the voltage and use the appropriate power supply unit before connecting it to power sources. Check to see that the unit is set to the voltage for your area by referring to the table below: Europe (except UK): 230V, 50Hz UK and Australia: 240V, 50Hz USA and Canada: 120V, 60 Hz For other areas, please check with local authorities. Do not connect the PSU to the SRM-10X while the PSU is connected to the AC mains supply. Connect the switched-off SRM-10X and PSU first before you connect the PSU to the mains supply. Lastly switch on the SRM-10X with the power switch on the back panel. Use only the correct NADY power supply unit to connect the SRM-10X to the Mains AC power. 5 CONTROLS AND CONNECTIONS 1. MONO INPUT SECTION (1) COMBINED MIC XLR / 1/4" LINE INPUT The Mic input is an electronically balanced XLR type designed to accept signals from any balanced low impedance (Low Z) microphone. To accommodate condenser microphones, this input is also equipped with +48VDC phantom power globally switchable to all XLR input jacks with the Phantom Power switch (33). Dynamic or ribbon-type microphones do not require phantom powering. It will be necessary to adjust the channel gain with the input Trim control (3) to achieve a nominal operating level. The XLR jack is configured for: Pin1 = ground, Pin2 = positive (+), Pin3 = negative (-). [Note: The Mic inputs are more sensitive than the Line inputs. Also, do not connect mics with the phantom power switched on, as indicated by the Phantom Power On LED (34) in the Master Section of the front panel. Never use unbalanced mic cables with the Phantom Power switched on. Never short the +48VDC to ground, as that can cause serious damage to your mixer. Also, mute the Monitor/PA speakers when turning the phantom power on or off.] (1) (2) (3) (4) (5) The 1/4" Line input is designed to accept balanced or unbalanced line-level signals such as those from keyboards, drum machines, or samplers. There is enough gain available on the line input to accept even lower level signals, such as those from an unbalanced microphone or guitar output. Use the Trim control (3) to adjust for the desired level. If a balanced signal is to be connected to the line input, then a 1/4" TRS (stereo) phone plug should be wired for: Tip = positive (+), Ring = negative (-), Sleeve = ground. (2) INSERTS Channels 1 and 2 are equipped with insert jacks to connect external signal processors, such as compressors, noise reduction systems, or effects devices, to the individual input channels. Insert points are useful for adding dynamic processing or equalization to a channel. The signal is intercepted post Trim and pre EQ, fed through the external device, then returned to the console at the same point where it left. The insert point is normalized, i.e., the signal is only interrupted when a connector is plugged into it. The insert jack is configured as: Tip = send, Ring = return, Sleeve = ground. (6) (7) (8) (9) (3) TRIM CONTROL The trim control adjusts the input sensitivity (channel gain) of the mic and line inputs on the mono input channels. This control can be adjusted to accommodate input signals from a wide variety of sources, from the high outputs from keyboards or drum machines to the small signal outputs of microphones. This wide range eliminates the need for Mic/Line switching. (10) (11) 6 CONTROLS AND CONNECTIONS The best balance of S/N and dynamic range will be achieved if you adjust the TRIM control on each channel separately so that the Peak Indicator LED (9) for that channel lights occasionally. (4) LOW CUT FILTER Use this Low-Cut (high-pass) filter (18 dB/octave, -3 dB at 75 Hz) for reducing floor rumble, popping, breathing noises, woolly bottom end, and to tighten up channels in a mix, etc. It is most effective when used carefully in conjunction with the Equalizer Controls (5). (5) EQUALIZER CONTROL ...