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Model 9523

Manual

Dual Channel Microphone Preamplifier

Summary of Contents for MikeMan 9523

Page 1: ...Model 9523 Manual Dual Channel Microphone Preamplifier ...

Page 2: ...mitations of Liability In no event will SPL be liable for any damages including loss of data lost profits cost of cover or other special incidental consequential or indirect damages arising from the use of the unit however caused and on any theory of liability This limitation will apply even if SPL or an authorized dealer has been advised of the possibility of such damage SPL electronics GmbH P O ...

Page 3: ...und quality to provide you a precious component for studio and P A purposes Please read this manual carefully to ensure you have all the information you need to use the MIKEMAN We wish you every success Your Sound Performance Laboratory Team I would like to start with my thanks to all our staff who created what is to be described here The importance of their exceptional qualification and talents c...

Page 4: ...y of the micro phone PPM meters displaying output values between 18 dB and 9 dB are also incorporated The input and output stages can optionally be equipped with beyerdynamic transformers The housing of the MIKEMAN has the standard 19 EIA format and occupies 1 unit 1 U 44 mm in your rack When installing the unit in a 19 rack the rear side of the unit needs some support especially in a touring case...

Page 5: ...eans that two output signals can be produced from one input signal The following diagram shows how to unbalance balanced wiring correctly Condenser microphones with 48 V phantom power can not be used unbalanced Both output stages operate in parallel so it is possible to connect two different destination units simultaneously for example to record to two different media at the same time or split the...

Page 6: ...microphone type The sound pressure level of the sound source to be recorded the distance to the microphone and the room acoustics are other factors which also have to be taken into account when setting the MIC GAIN poten tiometer The free field transmission factor of a dynamic micro phone is around 2 mV Pa that of a condensor microphone can be up to 20 mV Pa which equals an increase in the output ...

Page 7: ...two supply lines of the microphone and fed back via the cable screen There is no DC voltage between the two modulation lines which is why dynamic microphones can be used when the phantom voltage is switched on without this doing the microphones any harm The influences of noise voltages which can superpose the DC supply voltage such as hum loops and parasitic currents in the cable screen are reduce...

Page 8: ...ed to filter out noise and hum voltages from the mains side Both half waves are smoothed with 2000 mF capacitors in the positive and negative voltage path An independent self contained power pack is used for the phantom power supply It obtains unregulated AC voltage from 2 x 25 V coils in the transformer This results in 22 5 V DC via bridge rectifiers which are filtered with 1000 mF The DC voltage...

Page 9: ... 062 35 dB activ 20 dBu 0 002 10 dBu to 0 dBu 0 025 35 dB activ 10 dBu clipping 0 dBu to 0 dBu 0 017 35 dB activ Signal to noise Measuring set up load ohms 150 W measured at XLR output amplification CCIR 469 2 A unweighted 72 dB 55 85 dBqp 60 07 dB 60 dB 60 66 dBqp 69 75 dB 50 dB 68 57 dBqp 77 55 dB 40 dB 73 11 dBqp 81 75 dB 30 dB 74 79 dBqp 83 18 dB with 35 dB Pad 20 dB 62 56 dBqp 71 85 dB 10 dB ...

Page 10: ...SPL warranty repair facility in the country where purchased or to the SPL factory in Germany in the original packaging or a replacement supplied by SPL with all transportation costs and full insurance paid each way by the purchaser or owner All remedies and the measure of damages are limited to the above services It is possible that economic loss or injury to person or property may result from the...

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