User Guide ProAV1 - Radial Engineering
Contents
1. CONGRATULATIONS on your purchase of the Radial ProAV1 passive direct box This innovative DI fea tures a Swiss army knife compliment of connectivity options making the PROAV1 the perfect DI for professional AV integrators and rental companies that regularly deal with a variety of system interface problems As with all Radial products the ProAV1 is easy to use This short manual contains all the information you need to start using the ProAV1 right away For more information on the ProAV1 and other Radial products visit our website at www radialeng com The Radial ProAV1 is a clever and useful device that will provide you with years of problem solving connectivity It may even save the show ten minutes before curtain Enjoy INTRODUCTION The ProAV1 is a single channel DI with stereo inputs and a merge function that mixes left and right signals to a mono mic level 600 Ohm XLR output Upon in spection you will notice the Radial ProAV1 is equipped with multiple input connector formats that allow virtually any audio device to be connected In addition to standard Ys instrument inputs the ProAV1 is equipped with 3 5mm and RCA jacks for 10dB consumer audio devices like MP3 and CD players An XLR jack allows 4dB line level pro audio equipment to be properly connected to a microphone snake and console preamp At the heart of the ProAV1 is the Radial transformer that balances the signal and provides level and impedance conversion while2. shipping container or equivalent to Radial Engineering or to an authorized repair centre and you must assume the risk of loss or damage A copy of the original invoice showing date of purchase and the dealer name must accompany any request for work to be performed under this limited warranty This limited warranty shall not apply if the product has been damaged due to abuse misuse misapplication accident or as a result of service or modification by any other than an authorized repair centre THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND DESCRIBED ABOVE NO WARRANTIES WHETHER EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE SHALL EXTEND BEYOND THE RESPECTIVE WARRANTY PERIOD DESCRIBED ABOVE OF THREE YEARS RADIAL ENGINEERING SHALL NOT BE RESPONSIBLE OR LIABLE FOR ANY SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS ARISING FROM THE USE OF THIS PRODUCT THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH MAY VARY DEPENDING ON WHERE YOU LIVE Radial Engineering ProAV1 User Guide Radial engineering Radial Engineering 1638 Kebet Way Port Coquitlam BC V3C 5W9 Tel 604 942 1001 Fax 604 942 1010 email info radialeng com Radial Engineering is a division of CeTEC JP CableTek Electronics Ltd Radial ProAV1 users guide V1 0 Part R870 1140 00 Subject to change without notice
3. INPUT PANEL 1 INPUT amp THRU input connection for instruments and thru put for on stage amplifier 2 3 5mm TRS input connection for stereo 10dB consumer audio electronics 3 RCA INPUT left and right input connection for stereo 10dB consumer audio electronics 4 RCA THRU left and right parallel thru put of signals connected to the 3 5mm TRS and RCA inputs 5 15dB PAD reduces the input level by 15dB to prevent overload from high output devices 6 XLR INPUT this recessed switch selects between the hi Z and the XLR inputs OUTPUT PANEL 7 XLR LINE INPUT this XLR input is specifically designed to accept 4dB line level signals from balanced sources 8 GROUND LIFT disconnects pin 1 on the XLR output connector to help reduce noise caused by ground loops 9 XLR OUTPUT balanced 600 ohm mic level output is 100 transformer isolated and compatible with mic splitters and console preamps CONSTRUCTION 10 BOOK END DESIGN 14 gauge steel outer shell provides a protective zone for the switches and connectors 11 FULL BOTTOM PAD neoprene foam foot provides electrical isolation and plenty of friction to stay put on hectic stages 12 WELDED I BEAM CASE inner steel enclosure is made extremely rigid with l beam profile Eliminates stress that could torque the PC board and cause solder joint failure 13 MILITARY GRADE double sided PCB is bolted to steel standoffs for t
4. dial device to virtually any surface Perfect for hiding away inside racks on podiums or under tables es Mic level p gt UC 4dB Line level Balanced 4dB audio source uses XLR input Radial Engineering ProAV1 User Guide
5. isolating noise caused by ground loops Radial transformers manufactured for optimum signal transfer and minimal insertion loss are exceptional for their linear frequency response and ability to han dle high input levels without distortion The transformer is mounted in a mu metal can for protection against electromagnetic fields produced by power transformers lighting dimmers and video displays The ProAV1 is completely passive and therefore does not require any power what soever to make it work With its heavy duty steel construction the ProAV1 is well suited for touring and rental use CONNECTING THE ProAV1 Before connecting the ProAV1 make sure the sound system is turned off and all levels are set to zero This will avoid any pops in the sound system that could cause damage to speakers Also confirm that the PAD LIFT and XLR INPUT SELECT but tons are in their out positions Phantom power will not damage the ProAV1 Instrument uses 14 input with thru put to amp Mic level output to PA system Radial Engineering ProAV1 User Guide ProAV1 BLOCK DIAGRAM Follow the block diagram from the inputs on the left to the output on the right A really cool feature shown in the diagram is the hi Z input jacks are paralleled together in stereo This makes any unused hi Z jack a handy patch point to pass the signal on to mixers or ampli fiers Next the stereo inputs are merged to mono through a resistive network designed to minimize
6. oughness 14 RADIAL TRANSFORMER linear freq response from 20Hz to 18kHz for natural sound Mu metal shield to eliminate electromagnetic interference 15 ISOLATED CONNECTORS are made from extremely tough glass filled nylon for true electrical isolation from chassis ground Radial Engineering 1 4 Mono 3 5mm LEFTJIN RIGHT IN Radial X A se LINE 4dB MIC 6000 ProAV1 User Guide Radial tC engineering ProAV1 SPECIFICATIONS Frequency response 20Hz to 18kHz 5dB Total harmonic distortion 0 01 THD 20Hz to 20kHz Input Unbalanced high Z 10dB RCA and 3 5mm TRS input pad Power requirement Weigh RADIAL LIMITED THREE YEAR TRANSFERABLE WARRANTY Radial Engineering a division of JP Cabletek Electronics Ltd warrants this product to be free from defects in material and workmanship and will remedy any such defects free of charge according to the terms of this warranty Radial Engineering will repair or replace at its option any defective component s of this product excluding the finish the bottom foam pad and wear and tear from normal use for a period of three 3 years from the original date of purchase In the event that a particular product is no longer available Radial Engineering reserves the right to replace the product with a similar product of equal or greater value To make a request or claim under this limited warranty the product must be returned prepaid in the original
7. phase cancellation XLR LINE RCA IN SELECT 1 4 R IN t 15 dB PAD 1 4 LIN 1 8 TRS IN ISO XFORMER XER OUT GND LIFT i RCA amp 3 5mm JACKS CONSUMER 10dB AUDIO EQUIPMENT Consumer audio electronics like CD players computer sound cards and MP3 players may connect directly to the ProAV1 without cumbersome adaptors through the 3 5mm and RCA inputs 4 JACKS INSTRUMENTS Musical instruments may be connected to the 4 input jacks When connecting a mono instrument like a bass guitar the instrument connects to the 74 INPUT jack and the play ers on stage amplifier is connected to the 4 THRU jack When connecting stereo instruments like sythesizers the two jacks may be used for left and right channels The signal may be accessed at the RCA THRU or 3 5mm jacks and passed to mixers sound cards or on stage amplifiers XLR BALANCED 4dB INPUT Pro audio equipment with a balanced 4dB line output may be connected to the ProAV1 XLR input The XLR input is activated by a recessed switch on the side of the ProAV1 Push the recessed switch in to activate the XLR input and disable the 4 3 5mm and RCA inputs The ProAV1 will convert the 4dB line input to a mic level signal at the XLR output Computer sound card uses 3 5mm jack RCA jacks output stereo signal to local mixer Mono mic level output to PA system Radial Engineering ProAV1 User Guide 15dB PAD The ProAV1 is equipped
8. with a 15dB input PAD to prevent overload distortion when interfacing high output devices like CD players The PAD reduces the input to the transformer and will not effect the level at the thru put jacks The XLR input is preset for 4dB signals and is not affected by the PAD TRANSFORMER ISOLATION The ProAV1 transformer converts hi Z inputs to a low impedance balanced mic level signal A huge benefit of using transformers for signal conversion is the isolation the transformer provides by preventing the flow of ground currents between the input and output This isolation effectively blocks hum and buzz caused by ground loops GROUND LIFT To make grounding as flexible as possible the ProAV1 features a ground LIFT switch When the LIFT switch is in the in position pin 1 on the XLR output is disconnected interrupting the ground between the source device and mixing console This can help to reduce noise caused by ground loops XLR OUTPUT The ProAV1 produces a balanced 600 Ohm mic level signal that is compatible with microphone snakes systems and mixing consoles preamps Balanced signals can drive very long cables without appreciable noise or signal loss ACCESSORIES OPTIONAL J RAK The optional J RAK is a 2RU rack chassis that allows up to 8 Radial devices in one neat 19 package The Dis can be mounted with either the input side or output side facing the front OPTIONAL J CLAMP The optional J CLAMP can mount a single Ra
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