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DigiMAX LT
Eight-Channel Mic-Preamplifier with
adat™ Lightpipe Output
USER’S MANUAL 1.0
-20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP
PAD PAD PAD PAD PAD PAD PAD PAD
SAMPLE EXT POWER
30 30 30 30 30 30 30 30 RATE CLOCK
+48V +48V +48V +48V +48V +48V +48V +48V
32k 44.1k 48k
0 60 0 60 0 60 0 60 0 60 0 60 0 60 0 60
dB dB dB dB dB dB dB dB
GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN
1 1 2 3 4 5 6 7 8
115/230 VAC ~ WORD CLOCK
(by internal POWER
jump
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TABLE OF CONTENTS 1 Overview..................................................................................1 1.1 Introduction ............................................................................... 1 1.2 Features .................................................................................... 2 2 Controls & Connections ............................................................3 2.1 Front Panel.................................................................................
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OVERVIEW 1 1.1 INTRODUCTION Thank you for purchasing the PreSonus DigiMAX LT Eight-Channel Mic-Preampli- fier with adat™ Lightpipe Output. This preamp was designed using state of the art components to deliver crystal clear audio for an indefinite period of time. We believe the DigiMAX LT to be an exceptional sounding unit and an exceptional value. Please contact us at 1-800-750-0323 with your questions or comments regard- ing this product. PreSonus Audio Electronics, Inc. is committed to cons
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1 OVERVIEW 1.2 FEATURES Dual Servo Mic Preamps Each channel of your DigiMAX LT provides ultra low noise and wide gain control allowing the user to boost a desirable signal without increasing unwanted background noise. 48V Phantom Power Each channel of the DigiMAX LT has 48V of phantom power available. When the phantom power switch is engaged, power is supplied at a constant rate. This assures optimum performance of your condenser microphone(s) and that it will be free of distortion associat
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CONTROLS AND CONNECTIONS 2 2.1 FRONT PANEL -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP -20 -10 CLIP PAD PAD PAD PAD PAD PAD PAD PAD SAMPLE EXT POWER 30 30 30 30 30 30 30 30 RATE CLOCK +48V +48V +48V +48V +48V +48V +48V +48V 32k 44.1k 48k 0 dB 60 0 dB 60 0 dB 60 0 dB 60 0 dB 60 0 dB 60 0 dB 60 0 dB 60 GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN 1 1 2 3 4 5 6 7 8 Notice that the front panel is divided into eight preamplifier sections, sample rate selecto
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CONTROLS & CONNECTIONS 2 Clip - The LED labeled CLIP indicates at a signal level of +22dB. Care should be taken to avoid using signal levels that cause this LED to become active. Signal levels that reach or exceed this amount of output will cause undesirable artifacts (distortion) in the channel output signal that is being indicated by this LED. The signal level is reduced by rotating the channel’s control counter-clockwise. Sample Rate Selector The section at the extreme right of the front
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CONTROLS & CONNECTIONS 2 2.2 BACK PANEL BASIC LAYOUT 115/230 VAC ~ WORD CLOCK (by internal POWER jumpers) CHANNEL 8 CHANNEL 7 CHANNEL 6 CHANNEL 5 CHANNEL 4 CHANNEL 3 CHANNEL 2 CHANNEL 1 20WATTS CREATED, DESIGNED 7 5 3 1 IN OUT AND MANUFACTURED IN THE USA CHANNEL INSERT POINTS adat™ optical interface 8 6 4 2 DIGITAL MICROPHONE - XLR MICROPHONE - XLR MICROPHONE - XLR MICROPHONE - XLR MICROPHONE - XLR MICROPHONE - XLR MICROPHONE - XLR MICROPHONE - XLR AUDIO LINE INPUT - TRS LINE INPUT - TRS LINE IN
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3 OPERATIONS 3.1 DYNAMIC MICROPHONES Dynamic microphones are characterized by lower output levels. Hence, more gain is needed to amplify a dynamic microphone to operating level. Occasionally it is necessary to add the -20dB pad to the microphone to avoid distortion (e.g. when recording percussion). Do not use phantom power when using dynamic microphones. 3.2 PHANTOM POWERED MICROPHONES Phantom powered microphones such as condenser and some ribbon micro- phones require external power to preamp
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OPERATIONS 3 it ‘click’ once. The cable will appear to be ‘half plugged in’. Using the insert in this fashion will not break the signal chain and will allow the lightpipe output to function correctly. Insert Jack As Analog Outputs Example 2 In the event that you do not need the lightpipe output, you can use the inserts as analog outputs. To do this, all you need is a TRS insert cable. This cable is Y-shaped, has a single TRS 1⁄4” jack on one end and two 1⁄4” TS jacks on the other end. The s
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3 OPERATIONS on the recorder that says external clock or by setting a drop down menu option to receive sync from an external source or lightpipe. In the event that you want to slave the DigiMAX LT to another device you would need to do two things. First, press the EXT CLOCK button on the front of the unit. Second, you would hook a BNC cable from the word clock output of the sending device to the word clock input on the back of the DigiMAX LT. Bypassing The DigiMAX LT Preamps The DigiMAX LT
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OPERATIONS 3 9
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4 TECHNICAL SPECIFICATIONS Number of Channels ................................................................................ 8 Input Input Impedance, XLR Input ............................................................. 1.3k Ω Input Impedance, Line Level Input...................................................... 10k Ω Connectors ...................................................................... Neutrik™ Combo Panel Controls Gain ..........................................................
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TECHNICAL SPECIFICATIONS 4 Input ...........................................100/120/220/240VAC (Factory Configured) Power ..........................................................................................80 Watts Physical Size..............................................................................................1U Rack Dimensions........................................................................19” X 1.75” X 9” Weight ..........................................................
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5 PRESONUS LIMITED WARRANTY IN THE UNITED STATES PreSonus Audio Electronics Inc. warrants this product to be free of defects in material and workmanship for a period of one year from the date of original retail purchase. This warranty is enforceable only by the original retail purchaser. To be protected by this warranty, the purchaser must complete and return the enclosed warranty card within 14 days of purchase. During the warranty period PreSonus shall, at its sole and absolute option, to
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PRESONUS LIMITED WARRANTY 5 OUTSIDE OF THE UNITED STATES PreSonus Audio Electronics products are warranted only in the country where originally purchased, through the authorized PreSonus distributor in the country of original purchase, against defects in material and workmanship. The specific period of this limited warranty shall be that which is described to the original retail purchaser by the authorized PreSonus dealer or distributor at the time of purchase. PreSonus does not, however, wa
