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Manual
Dual Channel Microphone Preamplifier
Model 9523
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MikeMan Model 9523 Manual by Hermann Gier, Paul White & Paul Lentzen Version 2.0 – 10/1998 The information in this document has been carefully verified and is assumed to be correct. However Sound Performance Laboratory (SPL) reserves the right to modify the product described in this manual at any time. Changes without notice. This document is the property of SPL and may not be copied or reproduced in any manner, in part or full without the authorization of SPL. Limitations of Liability: In no e
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Foreword................................................................................................... 3 Contents Introduction............................................................................................. 4 Operation Safety..................................................................................... 4 Connections............................................................................................. 5 Control Elements MIC GAIN ....................................
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Introduction The recording industry has gone through some dramatic changes in the past years. The home recording market produces professional results with modest investments. Mainly inexpensive mixing consoles with lots of channels and 8-bus-option are being used. High class filtering and microphone preamplification are not incorporated in these systems. The “direct to DAT” recording philosophy has created another growing market. Sampling and direct cutting through quality mic preamps has become
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The MIKEMAN is equipped with two electronically balanced, Connections female 3-pole XLR sockets to connect two microphones or a line signals. The outputs of the MIKEMAN are designed balanced on male XLR sockets as well as unbalanced on 1/4“ jacks.The outputs can be used parallel to each other. This means 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 us
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Control Elements 5 1 2 3 4 Mic Gain 1 The preamplifier stage of the MIKEMAN is based on the SSM 2017 semiconductor. The strengths of this particular component are its extremely low noise and distortion characteristics. Unlike discre- tely designed circuits, the SSM 2017 has 64 transistor functions (discretely up to 24), thus achieving a very high common mode rejection. Preamplification of the input signal is determined by the MIC GAIN control. The control range of the preamplification values ran
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2. The phase inversion feature is also very useful when the pola- rity of the XLR input jack has to be inverted to match the polarity of the microphone or the microphone cable.The pin assigment of the XLR connector is as follows: Pin 2 = hot (+) and Pin 3 = cold (-). 3. Sometimes it is desirable to swop the polarity of a micro- phone because of the sound. The MIKEMAN can also be used as a gain-on amplifier for line 3 -35 dB signals. The input sensitivity of the preamplifier stage is reduced by 3
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Power Supply Special attention has been paid to the power supply of the MikeMan. The power pack is the heart of any unit, and the more accurately it works, the more this improves results. A stable and well-filtered The power supply is installed around a toroidal-core trans- toroidal-core power supply former which does not cause any electronic humming or mecha- provides the basis for good nical sounds as a result of its minimum leakage field. The primary sound processing. voltage can be switched
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Specifications Frequency range 15 Hz- 40 kHz +/- 0,1 dB Overall frequency range 10 Hz-100 kHz +/- 0,5 dB E.I.N. 126,6 dBm/dBu CMRR (common mode rejection) (Measuring set-up: load ohms 150 W, 0dB, measured at XLR-output) CMRR -20 dBu CMRR -60 dBu 100 Hz: -80 dBu-80 dBu 1 kHz: -80 dBu-80 dBu 10 kHz: -73 dBu-80 dBu 20 kHz: -68 dBu-80 dBu THD & N (total harmonic distortion & noise) (Measuring set-up: load ohms 150 W, measured at XLR-output) Measurement A Measurement B Varying amplifications 60dB am
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Warranty SPL electronics GmbH (hereafter called SPL) products are warranted only in the country where purchased, through the authorized SPL distributor in that country, against defects in material or workmanship. The specific period of this limited warranty shall be that which is described to the original retail purchaser by the authorized SPL dealer or distributor at the time of purchase. SPL does not, however, warrant its products against any and all defects: 1) arising out of materials or wor
