OWNER'S MANUAL 6 Channel Powered Mixer with Internal DSP Effects PRM-400 PRM-400 6-CHANNEL POWERED MIXER WITH INTERNAL DSP EFFECTS Congratulations on your choice of powered 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 PRM-400 has superior performance and greater flexibility than any other powered 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.................................................................................................................................................. 1. Inspection ...................................................................................................................................................... 2. Rack Mounting .............................................................................................................................................. 3. Setup and Operation ...................................................................................................................................... 5 5 5 5 CONTROLS AND CONNECTIONS .................................................................................................................. 6 1. Channel Input Section ....................................................................................................................................6 2. Master Section ................................................................................................................................................8 a. Aux Sends/Returns Function and Operation .......................................................................................... 8 b. Master Mix Function and Operation ........................................................................................................8 c. Digital Echo Effects Function Operation ................................................................................................10 d. Monitor Function and Operation ............................................................................................................10 e. Power Connection, Indicators, and Switches ........................................................................................11 4. Connections ................................................................................................................................................12 SPECIFICATIONS............................................................................................................................................ 13 BLOCK DIAGRAM ..........................................................................................................................................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 PRM-400 is compact desk console or rackmountable 200W/channel stereo powered mixer with 16 built-in selectable preset DSP echo and reverb effects and a comprehensive mixer section with extensive routing capability. The PRM-400 is a versatile audio tool that combines exceptional flexibility and performance, and is ideal for many small venue/live sound reinforcement applications. · Superior audio performance with low noise and powerful, full-spectrum transparent audio and natural sounding selectable echo/reverb effects · 6 mono balanced XLR mic and balanced 1/4" line inputs, trim controls and switchable 20dB pads, 3-band EQ's, Peak overload LEDs, Aux, Effects and Pan controls · Aux/Monitor switch allows the PRM-400 to be used as either a stereo main (FOH) or a mono main and monitors powered mixer · Stereo power amplifier delivers 200W/side @ 4 Ohms. Fancooled, bipolar amplifier design for longest life and maximum reliability. · Dual 7-band master graphic EQ (with bypass switch) can be used in stereo or mono for main and monitor EQ · Aux Send and Aux Return with Aux Send and Aux Return controls · Six 1/4" TRS inserts allow independent connection of effects devices for each mono channel · Stereo Master inserts with Pre EQ and Post EQ 1/4" TRS jacks · 60 mm faders on all channels and master L/R and Effect bus mix for precise level control · High quality sealed pots with center detents (EQ, EFF, PAN) · Tape In and Record Out RCA jacks with Tape level control · Built-in DSP (Digital Sound Processor) for ECHO (REVERB) with 16 selectable preset level and echo intervals and separate Repeat control, Effects Return and both individual channel and master mix Effects Send controls, master Effects fader, separate effects PFL monitoring, and numeric LED display · Headphone output with separate volume adjust · PFL control for each channel allows headphone monitoring independent of channel volume · Switchable global 48V phantom power · Dual 10-segment LED meter for L/R main and PFL · Erasable area above all faders for notations · Internal AC supply with 115/230V select switch · Road-tough all steel construction. Rack ears supplied. · Dimensions & Weight: 16" x 17" x 6" (406 x 432 x 152 mm), 27.8 lbs (12.6 Kg) 4 I N S TA L L AT I O N To ensure years of enjoyment from your NADY AUDIO PRM-400 powered mixer console, please read this manual thoroughly before using the unit. 1. INSPECTION Your NADY AUDIO PRM-400 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. RACK MOUNTING Enclosed in the shipping box you will find a rackmount kit. If you want to make your PRM-400 a rack mixer, remove the screws from the side panels and use them to attach the rack ears. (Note: The rack ears are supplied as "left" and "right" and must be attached as such.) 3. SETUP AND OPERATION Parts of the unit can become very warm during use. This is normal during operation. Care should be taken to ensure that there is enough space around the unit for cooling (at least 12" or 30cm). Do not place the PRM-400 on high temperature devices such as power amplifiers, etc., or the unit may overheat in operation. Also, do not place the unit on speakers as this may cause them to move and/or fall due to speaker vibrations. Although the unit's chassis is shielded against radio frequency (RF) and electromagnetic interference (EMI), extremely high fields of RF and EMI should be avoided. The PRM-400 has an internal power supply and is designed to operate from an external AC source. Power requirements for electrical equipment differ from area to area. Be sure to confirm that the voltage selected by the voltage selector switch on the back panel is proper for your area (120VAC/60 Hz or 230VAC/50Hz) per the information 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. When ready to operate, plug the AC cord into the power source. Make sure that the unit is turned off before connecting to the AC power source to avoid possible loud transients which can damage your speakers or your ears, especially when monitoring with headphones. Set the noted controls to the positions indicated below to further minimize the chance of undesired noise when first powering up your PRM-400 : LEVEL FADERS (11,27A,27B,28) ................................................................................................................SET TO MINIMUM HI, MID & LOW EQ'S (6) AND PAN CONTROLS (9)..................................TURNED TO THE CENTER DETENT POSITION AUX , EFF CONTROLS & PHONES LEVEL CONTROLS (7,8,36) ..........TURNED COMPLETELY COUNTERCLOCKWISE ALL OTHER CONTROLS SHOULD ALSO BE TURNED COMPLETELY COUNTERCLOCKWISE. Power up the unit as noted in Power Connections, Indicators, and Switches (Section 3e in CONTROLS AND CONNECTIONS). 5 CONTROLS AND CONNECTIONS 1. CHANNEL INPUT SECTION (1) MIC INPUT The Mic input is an electronically balanced XLR type designed to accept from any bal(1) signalslow impedance anced (Low Z) microphone. To accommodate condenser microphones, this input is also equipped with (2) +48VDC phantom power globally switchable to all XLR input jacks with the Phantom Power switch (23) on the master (3) Section of the front panel. Dynamic or ribbon-type microphones do not require phantom powering. It will be necessary to adjust the channel gain with the input Trim control (4) and/or Pad switch (5) 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 (24) 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, turn down the Stereo Master faders (27A, 27B) to prevent possible sharp transient noise from damaging the speakers when turning the phantom power on or off.] (2) LINE INPUT The 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 (4) and/or Pad switch (5) to adj ...