Digital Audio Labs LACHAPELL AUDIO 983S MK2 Page 1 User Manual Download | Manualshive

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1266 Park Road
Chanhassen, MN 55317
952-401-7700

[email protected]
www.digitalaudio.com

LACHAPELL AUDIO 983S MK2

USER GUIDE

Two Channel Vacuum Tube Preamplifier for

Microphones and Instruments

Version 1

February 2019

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Summary of Contents for LACHAPELL AUDIO 983S MK2

Page 1: ...oad Chanhassen MN 55317 952 401 7700 support digitalaudio com www digitalaudio com LACHAPELL AUDIO 983S MK2 USER GUIDE Two Channel Vacuum Tube Preamplifier for Microphones and Instruments Version 1 Fe...

Page 2: ...o direct sun light or heating units as the internal components temperature may rise and shorten the life of the components 7 Do not defeat the safety purpose of the polarized or grounding type plug A...

Page 3: ...the product to the place of purchase Please write the RMA number on the outside of the shipping carton Any product sent to us without a valid RMA number will be refused Include the following with the...

Page 4: ...LIMITED WARRANTY 1 REPAIR POLICY 1 WARRANTY SERVICE 1 NON WARRANTY SERVICE 1 INTRODUCTION 3 BEFORE YOU GET STARTED 3 SAFETY PRECAUTIONS 4 CONTROLS 5 CONTROL DETAILS 5 GETTING STARTED 6 983 FREQUENCY R...

Page 5: ...technically competent individuals Tube replacement Turn power supply off and remove 983S MK2 from the chassis wait five minutes to allow the vacuum tube to cool before attempting to remove it Using y...

Page 6: ...ating any existing vent s is not recommended Never position the 983S MK2 directly above other heat generating sources such as a power amplifier Do not place the 983S MK2 in an area where there is a po...

Page 7: ...erses the polarity of the output signal MUTE Output level mute The MUTE LED will illuminate red when the channel is muted VU METER This detects the microphone input signal not output level The LED is...

Page 8: ...C power supply to the AC POWER IN Press it until it locks into place To disconnect the power supply press the locking mechanism on the AC POWER connector MIC INPUT This XLR connects to the microphone...

Page 9: ...microphone type TUBE HARMONICS AND COMPRESSION With the TUBE DRIVE set at around 75 LEVEL around 25 and the PAD off you will get incredible tube harmonics and natural tube compression This would be a...

Page 10: ...LACHAPELL AUDIO MODEL 983S MK2 8 983S MK2 FREQUENCY RESPONSE HPF 150HZ LPF 10KHZ HPF 50HZ LPF 5KHZ...

Page 11: ...in 27 8dBu 1 THD N 22Hz 20kHz Frequency Response 9Hz 40kHz THD N Variable 0 01 18 per tube drive input gain control with 40dBu input at 1Khz Noise EIN 124dB S N Ratio 92dB 30dB of gain 22Hz 20kHz Inpu...

Page 12: ...2014 2015 Digital Audio Labs 2017 2018 Digital Audio Labs Patents pending...

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