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

support@digitalaudio.com
www.digitalaudio.com

LACHAPELL AUDIO 500DT 

USER GUIDE

Version 1.0

May 2018

Summary of Contents for 500DT

Page 1: ...1266 Park Road Chanhassen MN 55317 952 401 7700 support digitalaudio com www digitalaudio com LACHAPELL AUDIO 500DT USER GUIDE Version 1 0 May 2018 ...

Page 2: ...able components inside the product 6 The product shall not be exposed to moisture Do not touch the unit with wet hands Do not handle the unit or power cord when your hands are wet or damp 7 The product should be connected to a power supply only of the type described in the operating instructions or as marked on the product CARE From time to time you should wipe off the front and side panels with a...

Page 3: ...e 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 may be refused Include the following with the product a brief description of the problem your name return shipping address phone number and the RMA number Do not include any accessories DAL is not responsible for any damage to or loss of the product during transit...

Page 4: ... 1 WARRANTY SERVICE 1 NON WARRANTY SERVICE 1 LACHAPELL AUDIO MODEL 500DT 3 BEFORE YOU GET STARTED 3 SAFETY PRECAUTIONS 3 500DT DUAL TOPOLOGY CONTROLS 4 CONTROLS 4 USING THE 500DT 5 GETTING STARTED 5 SNARE 5 KICK 5 DRUM OVERHEADS 6 BASS 6 GUITAR 6 VOCALS 7 500DT SPECIFICATIONS 8 OVERALL 8 TROUBLESHOOTING 9 COMMON ISSUES 9 LACHAPELL AUDIO SUPPORT 9 ...

Page 5: ...e to the risk of electrical shock and the presence of potentially lethal voltages inside the 500DT It is recommended that tube replacement be performed only when necessary by technically competent individuals Tube replacement Turn power supply off and remove 500DT from the chassis wait five minutes to allow the vacuum tube to cool before attempting to remove it Using your fingers apply a slight ci...

Page 6: ...the signal to the solid state OPAMP amplification Fully counter clockwise will send 100 of the signal to the TUBE amplification path 48V This toggle provides a 48V phantom power DC for condenser microphones PAD When engaged the 20dB pad will reduce the signal going into the amplifier stages by 20db This is useful for recording hot or loud sources The PAD is inactive when using the Hi Z input POLAR...

Page 7: ... 500DT allows you to use either path or a combination of the two the sonic possiblities are nearly endless GETTING STARTED The input and output controls on the LaChapell Audio 500DT work together to provide a rich array of sonic possibilities Here are some things to try to get started for a variety of sources KICK On Kick try leaning on the OPAMP path so that the attack of the beater comes through...

Page 8: ...to your DAW with the OUTPUT GAIN With the blend at 60 the bass will growl courtesy of the tube path yet have clarity and articulation from the OPAMP path GUITAR Try using the 500DT as the front end to a guitar modeler With the INPUT GAIN up you can add some true tube distortion to your tracks With the INPUT GAIN lower and the OUTPUT GAIN up the TUBE path adds some life to software modelers while t...

Page 9: ...tuate a proximity effect on a condenser mic For an aggressive vocal try moving the INPUT GAIN to the 50 60 range set the OUTPUT GAIN so that it doesn t clip the converters and then play with the BLEND in the 30 60 range For a gorgeous and soaring vocal lean on the OUTPUT GAIN more with the BLEND closer to the OPAMP path VOCALS ...

Page 10: ...THD N 0 08 FREQUENCY RESPONSE 20 Hz to 20 kHz MAXIMUM OUTPUT 12 dBu TYPICAL EIN 121 SOLID STATE PATH THD N 0 01 FREQUENCY RESPONSE 20 Hz to 46 kHz MAXIMUM OUTPUT 28 dBu TYPICAL EIN 129 NOTE Stated specifications are typical measurements but subject to change without notice due to individual traits unique to each tube 500DT SPECIFICATIONS ...

Page 11: ...00DT I dont have enough gain Make sure the PAD switch is turned off The pad doesnt work on the Hi Z That is by design The PAD will not function with the Hi Z input I m hearing noise We have found that not all 500 series frames are the same in terms of noise Some will introduce noise into the signal path Try to reduce the GAIN levels or use the PAD to reduce noise LACHAPELL AUDIO SUPPORT Phone Supp...

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

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