PDF R-501 Elite User Manual
Contents
1. R 501 ELITE User Manual Issue 0 2 Page 4 ARREL Audio INTRODUCTION ARREL Audio R 501 Elite Mic Line Preamplifier has been conceived to offer to the 500 series user the superior audio performance of the ARREL audio higher level product lines The unit offers to the 500 user high reliability rugged design outstanding audio quality versatility and ease of use typical of the tradition of ARREL Audio products R 501 Elite is perfect for recording every kind of music from classic pop rock electronic and in all the situations live and recording studio where maximum sound quality and special attention to dynamic range and signal to noise ratio is needed The R 501 Elite technical specification shows that it is the perfect audio unit also for actual digital recording 24bit 192kHz environments where superior performance is required R 501 Elite is based on the use of the latest circuit topologies characterized by very low distortion ultra low noise and very wide frequency response The amplifier architecture is based on two high dynamic range gain stages in order to avoid any saturation Even if the input stage of the R 501 Elite could accept input signals up to 24 dBu a special protection circuit limits the input level at 20 dBu in order to prevent any damage The R 501 Elite extended input dynamic range avoids the necessity of the input pad and the gain is controlled by a single large knob The absence of the input pad means better2. REAL Innovation R 501 Elite Mic Line Preamplifier ARREL O R501 AUDIO ELITE o LINE INPUT O NA User Manual Issue 0 2 ARREL Audio SAFETY INSTRUCTIONS A WARNING Always follow the precautions listed below to avoid any possibility of serious injury or even death from electrical shock short circuiting damages fire or other hazards These precautions include but are not limited to the following e Do not expose the instrument to liquids and rain Do not use it near water or in damp or wet conditions or place containers on it containing liquids If any liquid seeps turn off the power and unplug the power cord from the AC outlet e Do not put burning items such as candles on the unit A burning item may fall over and cause a fire e This instrument contains no user serviceable parts Do not open the instrument or attempt to disassemble or modify the internal circuit H Never insert or remove an electric plug with wet hands e Check the electric plug periodically and remove any dirt or dust which may have accumulated on it e Do not place the power cord near heat sources such as heaters or radiators and do not excessively bend or otherwise damage the cord place heavy objects on it or place it in a position where anyone could walk on trip over or roll anything over it A CAUTION Always follow the precautions listed below to avoid any possibility of serious injury or even death from e
3. istortion Noise ow Cut Filter Output Level 48V Phantom Power button Lo Cut button Phase Reverse button Controls 1 4 TRS jack Line Mic switch by line jack insertion Send and Return Balanced Bantam Jacks Level Indicator 10 LED Bargraph 7x green 3x red 1 5 dB step Range 6 21 dBu 4 LEDs 48V Phantom Power Lo Cut Phase Insert Connectors Series 500 compatible connector Connectors Compliant 500 series rack with PSU and external audio connections Single 500 series rack slot required for each R 501 ELITE module imensions eries 500 compatible module LD Ol O Du 57 T T yO OC yoy ez U Z a GI 2a up o al 5 E o 5 5 5 3 a y O O D o 8 7 SP 3 IS sisi a lze O 21 9 ol o GU a os 5 5 SIS E O o 2 D 2 D o 3 EN gt o 3 5 OJ 5 lt g TD D 5 E C0 Weight 00 g R 501 ELITE User Manual Issue 0 2 Page 12
4. sonic performances In fact the pad degrades sound quality and affects signal to noise ratio The R 501 Elite contains a special circuit that allows the connection of microphones even if the unit is turned on with the Phantom Power activated in any case we do not recommend this practice in order to protect your microphones The R 501 Elite differently from the traditional series 500 modules powered at 16 VDC is powered at the normal 500 series voltage but the power supply is internally increased at 24 VDC providing 32 dBu maximum output level The Line Input unbalanced is easily accessible from the front panel by a 1 4 TRS jack the jack insertion excludes the mic input If a balanced line is connected to the Line Input it will be automatically unbalanced cold connected to ground The two bantam connectors on the front panel provide an insert point push button that is extremely useful permitting the on the fly connection of out board units without accessing the back panel To obtain an outstanding audio quality no servo amplifiers are used in the R 501 Elite so IT IS NOT POSSIBLE TO UNBALANCE THE LINE OUT OF THE R 501 Elite If you need an unbalanced connection for the line out follow the indications shown in APPENDIX A Four illuminated buttons are provided for Phantom Power Phase inversion LO CUT filtering and Insert control R 501 ELITE User Manual Issue 0 2 Page 5 ARREL Audio A LED bargraph 1
5. 0 LEDs is used to display the output level The R 501 Elite offers a milk white painted RAL 9001 front panel and a semi closed enclosure and has been designed to be compliant with the 500 series standard R 501 Elite is dedicated due to his absolute sonic level quality to high professional vocal recordings classical instruments high dynamic range instruments such as drums and percussions ARREL Audio products are designed and manufactured in Italy Housing The R 501 Elite Mic Line Preamp Module has been designed to be compliant with the 500 series standard Installation Instructions gt Remove the R 501 Elite module from the packaging gt Turn off the 500 series enclosure and remove mains power gt Find an empty slot in the 500 series rack and remove the 2 fastening screws positioned one on the top of the enclosure and one the bottom of the enclosure gt Insertthe R 501 Elite into the empty slot in the 500 series enclosure Be sure that the rear edge connector on the R 501 Elite module mates correctly with the edge connector of the 500 series enclosure gt Replace the 2 fastening screws through the top amp bottom holes in the R 501 Elite module and screw into the 500 series enclosure The module must be secured into the enclosure before turning the mains on gt Apply mains power into the 500 series enclosure and turn on gt Connect the microphone audio source or instrument and select the correct settings gt
6. NTAM On the front panel C i N S HOT GROUND COLD Balanced line only To use unbalanced lines disconnect RING INSERT RETURN BANTAM On the front panel C ke HOT GROUND COLD Balanced line Can be unbalanced FIG 1 R 501 ELITE Connections R 501 ELITE User Manual Issue 0 2 Page 9 ARREL Audio APPENDIX B 500 series module edge connector 1 GROUND 2 OUT 3 4 OUT 5 GROUND R 500 7 8 IN MODULE o 10 IN 11 12 16V 13 GROUND 14 16V 15 48 V FIG 2 500 Series module edge connector R 501 ELITE User Manual Issue 0 2 Page 10 ARREL Audio APPENDIX C Front Panel ARREL O R501 AUDIO ELITE LINE INPUT O FIG 3 R 501 Elite Front Panel R 501 ELITE User Manual Issue 0 2 Page 11 ARREL Audio TECHNICAL SPECIFICATIONS Channels 16V converted to 24 V DC a special circuit increase the 500 power supply to 24 V 48 V DC very low power supply currents with respect to the 500 series standard Electronically Balanced Phantom Power switch LED Input Level 4 dBu 66 dBu Max input level 24 dBu Input Impedance A KO 70 dB range Unbalanced Impedance 47 KO Line level 4 34 dBu Max 20 dBu 30 dB range 5 150 KHz 1 dB perfect square wave up to 20 KHz lt 0 003 typical 0 001 O Hz 12 dB Oct selected by a button LED Electronically Balanced Level 4 dBu Max 32 dBu ine Input ine Gain andwidth
7. The module is not designed to be hot plugged so please ensure the power to the 500 series enclosure is OFF before inserting or removing a module this recommendation is useful in order to protect the 500 enclosure circuits our product due to a very robust construction could be hot plugged without problems R 501 ELITE User Manual Issue 0 2 Page 6 ARREL Audio LINE INPUT R 501 Elite Front Panel Controls and Operations INPUT SOURCE SELECTION The R 501 Elite input stage is based on a differential amplifier so it is electronically balanced If the Line In 1 4 jack is not inserted on the housing on the front panel the mic input is activated the insertion of the Line In jack disconnects the mic input Due to its very high dynamic range the ARREL Audio R 501 ELITE does not require any input pad switch PHANTOM POWER SWITCH Press the button to activate the 48 V Phantom Power LED on To deselect the Phantom Power press again the button LED off A special circuit allows the connection of microphones even if the unit is turned on with the Phantom Power activated GAIN CONTROL KNOB Turn the gain knob in order to select the required amount of gain for either the mic input or the Line input The gain range if the mic input is activated is 70 dB If Line input is activated the range is 30 dB LO CUT SWITCH Push the button to activate the high pass filter LED on The filter cut of
8. f frequency is 80 Hz with 12 dB Oct slope Press again to switch off the filter LED on PHASE SWITCH Push the button to invert the phase of the audio signal by 180 degrees LED on Press again to switch off the phase inversion LED off LEVEL INDICATOR The output level Indicator is based on a 10 LED Bargraph 7 x green LEDs and 3 x red LEDs that measures in the range 6 21 dBu The resolution in 1 5 dB per step R 501 ELITE User Manual Issue 0 2 Page 7 ARREL Audio SEND RETURN BANTAM JACKS The front panel SEND RETURN bantam jacks permit the insertion of an outboard in series to the output without changing the connections on the back panel The SEND RETURN is a balanced connection This feature is extremely useful if you want to add on the fly outboards R 501 ELITE User Manual Issue 0 2 Page 8 ARREL Audio APPENDIX A Connections ARIEL AUDIO GROUND front panel LINE INPUT TRS Jack 1 4 Can be used Stereo Jack instead Mono Jack 1 4 Stereo Jack 1 4 O a O E lt PHASE X H PHASE GROUND GROUND GROUND MICROPHONE INPUT XLR On the back 3 1 Ground Al eN 2 PHASE tio e 2 o y 3 PHASE Balanced line only dont connect unbalalced lines MAIN OUTPUT XLR On the back 3 1 Ground eN PHASE 1 RS F 2 PHASE Balanced line only To use unbalanced lines disconnect pin 3 INSERT SEND BA
9. ipment This special symbol on the products packaging and or accompanying documents means that used electrical and electronic products should not be mixed with general household waste For proper treatment recovery and recycling of old products please take them to applicable collection points in accordance with your national legislation and the Directives 2002 96 EC By disposing of these products correctly you will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate waste handling For more information about collection and recycling of old products please contact your local municipality your waste disposal service or the point of sale where you purchased the items For business users in the European Union If you wish to discard electrical and electronic equipment please contact your dealer or supplier for further information Information on Disposal in other Countries outside the European Union This symbol is only valid in the European Union If you wish to discard these items please contact your local authorities or dealer and ask for the correct method of disposal R 501 ELITE User Manual Issue 0 2 Page 2 ARREL Audio ARREL Audio Contacts ARREL Audio Via A Mondadori 7 00128 Rome Italy Tel 39 06 506 2017 Fax 39 06 5062017 Info info arrel audio com Web www arrel audio com Support http www ar
10. lectrical shock short circuiting damages fire or other hazards These precautions include but are not limited to the following e Do not connect the instrument to an electrical outlet using a multiple connector Doing so can result in lower sound quality or possibly cause overheating in the outlet itself e When removing the electric plug from the instrument or an outlet hold the plug itself and not the cord Pulling by the cord can damage it e Remove the electric plug from the outlet when the instrument is not to be used for extended periods of time or during electrical storms e Do not place the instrument in an unstable position where it might accidentally fall over e Before moving the instrument remove all connected cables e When setting up the product make sure that the AC outlet you are using is easily accessible If some trouble or malfunction occurs immediately turn off the power switch and disconnect the plug from the outlet Even when the power switch is turned off electricity is still flowing to the product at the minimum level e When you are not using the product for a long time make sure to unplug the power cord from the wall AC outlet e Use only the stand rack specified for the instrument When attaching the stand or rack use the provided screws only Failure to do so could cause damage to the internal components or result in the instrument falling over mu Information for Users on Collection and Disposal of Old Equ
11. rel audio com support ARREL Audio is continuously working to the improvement of its systems and related documentation In any case we reserve the right to change the specifications without notice but in the respect to the current legislation Disclaimer The information contained in this manual has been carefully checked and we believed is accurate at the time of publication In any case we do not assume any responsibility for inaccuracies errors or omissions nor any liability for any loss or damage resulting either directly or indirectly from use of the information contained in this manual R 501 ELITE User Manual Issue 0 2 Page 3 ARREL Audio TABLE OF CONTENTS SAFETY INSTRUCTIONS cia 2 ARREL Audio Contacts osinasiansiamaisis sans inicias ri kernen een dd e Sd a denne 3 TABLE e Chr KEEN 4 INTRODUC TION ab e a at a A e Elen 5 el le BEE 6 Installation Instructions ia a 6 R 501 Elite Front Panel Controls and Operations 7 Input Source Selecionar ne nn nn said 7 Phantom Power switch aiii rir lr mana mana aa ananas 7 Gain Control knob andere need 7 FO CUT SWIG ni a as 7 E EAE aa ii ii E AA E 7 Level Indica asa isa ad a Sd a A A a 7 SEND RETURN Bantam jacks viii 8 APPENDIX A COMME CTO Si sentent aise 9 APPENDIX B 500 series module edge connector a 10 APPENDIX C Front Panel a e 11 TECHNICAL SPECIFICATIONS ooococcccccccononccononanaronononononanonananinnnonononono nana n an nnnn rro cani seara 12
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