Shure FP23 User's Manual
Contents
1. television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This class B digital apparatus complies with Canadian ICES O003 Eligible to bear CE marking Conforms to European EMC directive 89 336 EEC Professional Audio Products Standard EN 55103 1996 Part 1 emissions and Part 2 immunity The FP23 is intended for use in environments E1 residential and E2 light industrial as defined in European EMC standard EN 55103 It meets the applicable tests and performance criteria found in the standard for these environments EMC conformance is based on the use of shielded interconnecting cables Limited One year Warranty Shure Incorporated Shure hereby warrants that this product will be free from defects in materials and workmanship for a period of one year from the date of purchase At its option Shure will repair or replace the defective product and promptly return it to you or refund the purchase price You should retain proof of purchase to validate the purchase date and return it with any warranty claim If you believe this p2. SHURE Model FP23 User Guide Microphone Preamplifier General Description The Shure FP23 is a portable battery powered microphone pre amplifier with phantom power Designed for high bandwidth 96k 24 digital production this studio quality mic preamp is ideal for critical radio television and film production applications With its rugged mechanical and electrical construction compact size and high quality components the FP23 is extremely durable and easy to use This highly reliable mic preamp will provide years of superb audio performance under the most punishing field condi tions Features Audio performance e Maximum of 66 dB of gain adjustable in eleven discrete steps for accurate repeatable gain settings e Dynamic range exceeding 120 dB e 20 Hz to 50 kHz audio bandwidth e High immunity to RF interference due to transformers RF filtering and all metal construction e High current line output driver capable of driving very long cable runs Transformer balanced e Premium quality input transformer provides superior sonic quality and freedom from interference problems e Custom designed output transformer provides line driving ability with freedom from interference problems Limiter e Extended range peak limiter uses dual opto isolators making the unit virtually unclippable Battery power e Internal battery power two AA for convenient low cost power e Battery life greater than 24 hours Dur
3. able mechanical construction e High strength extruded aluminum chassis with protective metal end rails to withstand punishing field conditions e Easy access battery compartment for quick battery changes Phantom power e Selectable 48 volt and 12 volt phantom power for condenser microphones High pass filter e Two corner frequency settings 2000 Shure Incorporated 27A8726 TI Specifications Gain 0 dB to 66 dB input to output switch selectable Gain Accuracy 0 6 0 1 dB with reference to front panel gain markings 150 Q source 100k Q load impedances Frequency Response see graph below 20 Hz 22 kHz 0 1 0 5 dB 1 dB at 50 kHz relative to 1 KHz level with 150 Q source Equivalent Input Noise 126 dBu 128 dBV maximum 150 Q source flat weighting 22 Hz 22 kHz bandwidth for gain settings of 36 dB or greater Output Clipping Level 22 dBu minimum with 100 kQ load 20 dBu minimum with 600 Q load Input Clipping Level 4 dBu minimum at the 0 or 18 dB gain setting Dynamic Range 122 dB minimum at the 18 dB gain setting THD Noise 0 05 maximum from 50 Hz to 22 kHz 4 dBu output level 22 Hz 22 kHz filter bandwidth 46 dB gain setting Common Mode Rejection Ratio 100 dB minimum at 80 Hz 60 dB minimum at 10 kHz Input Transformer balanced 2000 Q input impedance Output Transformer balanced 130 Q output impedance Low Cut 80 Hz or 160 Hz switch selectable 6 dB per o
4. ctave Phantom Power 12V or 48V switch selectable per DIN 45 596 Limiter Limits to 17 dBu output level 10 1 limiting ratio 5 ms attack time 100 ms release time Amber Red LED indicates limiting clipping Internal Voltage Rails 15 V and 15 V regulated Power 2 AA batteries 24 hours life typical with 4 dBu signal into 600 Q no phantom power Power LED Green indicates power and good battery Red indicates power and low battery LED turns red when approximately 4 hours of battery life remain Polarity Mic input to line output is non inverting Operating Temperature Range 18 to 57 degrees C 0 to 135 degrees F Printed in U S A Dimensions 43 mm x 94 mm x 140 mm H x W x D 1 7 X3 7 X 5 5 Weight unit only Weight packaged 0 86 kg 1 90 Ibs Certification 0 56 kg Meets FCC Part 15 Class B Eligible to bear CE mark see conformance 1 24 Ibs statement 1 F A 0 P E a T 7 C 7 a H u 3 pd 4 F 5 F 7 5 i 6 10 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz FREQUENCY RESPONSE Figure 1 FREQUENCY RESPONSE Figure 2 Back Panel Connectors and Controls Front Panel Controls and Indicators 1 LIMITER Peak LED Bi color LED illuminates amber to indicate limiter activi ty illuminates red at 3 dB below c
5. g interference that may cause undesired operation Testing was completed by the following NVLAP or A2LA accredited laboratory L S Compliance Inc W66 N220 Commerce Court Cedarburg Wisconsin 53012 Telephone 262 375 4400 Fax 262 375 4248 Shure Incorporated Manufacturer Signed Date May 15 2000 Name Title Craig Kozokar Project Engineer EMC SHURE SHURE Incorporated Web Address http www shure com 222 Hartrey Avenue Evanston IL 60202 3696 U S A Phone 847 866 2200 Fax 847 866 2279 In Europe Phone 49 7131 72140 Fax 49 7131 721414 In Asia Phone 852 2893 4290 Fax 852 2893 4055 Elsewhere Phone 847 866 2200 Fax 847 866 2585
6. ic isola tion from the driving source And their inherently high common mode impedance provides exceptional common mode noise re jection Balanced and Unbalanced Connections Both the input and output of the FP23 accept balanced or unbal anced connections You can convert either the input or output to un balanced operation by grounding pin 3 to pin 1 No change in gain will occur Phantom Power Use one of the two phantom power settings on the FP23 for mi crophones that require it Some microphones need the 48 volt set ting or they will suffer a loss of headroom and an increase in distor tion The 12 volt setting however lengthens battery life and electret condenser microphones rated for operation at 12 V or less generally receive no performance benefit from the 48 volt setting Consult your microphone documentation Dynamic microphones do not require phantom power A properly connected balanced dynamic microphone is not affected by the presence of phantom power and does not draw any current How ever poorly or incorrectly wired microphone cable can cause audi ble artifacts in the microphone signal phantom power can be an excellent cable tester It is good practice to turn phantom power off when not needed High Pass Filter Use either of the two high pass low cut filter settings on the FP23 to remove excess low frequency energy in the audio signal Use the 80 Hz position for most applications such as recording speech m
7. lipping LIMITER Switch Activates the peak limiter Limits to 17 dBu output High Pass Filter Switch Three position switch inserts an 80 Hz or 160 Hz corner frequency filter 6 dB per octave Center position of switch removes the filter from the signal path Rotary GAIN Switch Selects the amount of gain from input to output adjust able in 11 increments POWER Switch Powers the unit when switch is in the up position POWER LED Bi color LED illuminates green when the unit is pow ered and changes to red when approximately four hours of battery life remain 7 Battery Compartment Requires two AA batteries for operation Insert positive end of battery first LINE OUT Transformer balanced XLR line level output 22 dBu peak output level PHANTOM Power Switch Three position switch selects either 48 volt or 12 volt phantom power Center position turns phantom power off MIC IN Transformer balanced XLR input accepts microphone level signals Operational Notes Transformers The FP23 uses input and output transformers with premium magnetic core material to achieve high signal handling capability especially at low frequencies This keeps distortion to a minimum Transformers offer superior isolation from the adverse and un controlled environments of field production Unlike other balancing techniques transformers transform signals magnetically without any direct electrical connection providing complete galvan
8. roduct is defective within the warranty period carefully repack the unit insure it and return it postage prepaid to Shure Incorporated Attention Service Department 222 Hartrey Avenue Evanston Illinois 60202 3696 U S A Outside the United States return the product to your dealer or Authorized Service Center This warranty does not apply in cases of abuse or misuse of the product use contrary to Shure s instruction or unauthorized repair All implied WARRANTIES OF MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE are hereby disclaimed and Shure hereby disclaims liability for incidental special or consequential damages resulting from the use or unavailability of this product Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above limitation may not apply to you This warranty gives you specific legal rights and you may have other rights which vary from state to state FCC Declaration of Conformity We of Shure Incorporated 222 Hartrey Ave Evanston IL 60202 3696 U S A 847 866 2200 declare under our sole responsibility that the following product Model FP23 Name FP23 Microphone Preamplifier was tested and found to comply with Part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference re ceived includin
9. usic and ambient sound The 160 Hz position is useful for enhancing speech clarity The high pass filter is a single pole de sign 6 dB per octave When possible equalize at the sound source with microphone selection placement use of a windscreen and onboard micro phone filtering A high pass filter on the microphone and a high pass filter on the FP23 gives an additive effect increasing the slope of the filter Limiter The limiter switch on the front panel activates two peak responding limiters within the FP23 The first acts on the input sig nal while the second one limits the output to 17 dBu This enables the FP23 to limit in excess of 50 dB making it very difficult to clip the unit regardless of the gain setting The limiter LED on the front panel illuminates in proportion to the amount of limiting Batteries Two AA alkaline cells can power the FP23 for approximately 26 hours with typical signals phantom power OFF The audio perfor mance of the FP23 does not vary throughout the life of the batter les Many factors affect battery life including battery chemistry am bient temperature of operation phantom voltage microphone cur rent draw and output drive level Use the chart below to estimate battery life Experimentation can help determine the battery life for each individual setup NOTE Nickel Cadmium batteries are not recommended These batteries have lower energy per cell than other types and result in ver
10. y short service Battery Microphone Battery Duracell AA Dynamic handheld 26 hrs Sinise ee Duracell AA Electret condenser 18 hrs OMNIS 12oh phantom S Duracell AA Studio condenser 48 volt 5 hrs TMN 800 phantom Test conditions 70 degrees F 42 dB of gain with an acoustic Certification Authorized under the DECLARATION OF CONFORMITY provision of FCC part 15 as a Class B digital device Tested to comply with FCC standards FOR HOME OR OFFICE USE This product complies with part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment This equipment has been tested and found to comply with the limits for a class B digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or
Download Pdf Manuals
Related Search