1266 park road chanhassen, mn 55317 952-401-7700 support@digitalaudio.Com www.Digitalaudio.Com lachapell audio 583e user guide version 1.1 august 2017.
Lachapell audio 583e safety instructions to reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Contact digital audio labs for servicing. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of ...
Lachapell audio 583e 1 digital audio labs limited warranty digital audio labs warrants their products against defects in material and workmanship for a period of two years from date of purchase. During this period, digital audio labs will, at its option, repair the defective unit or replace it with ...
Lachapell audio 583e contents safety instructions .................................................................................................................................................................Ii important safety instructions ...........................................................
Lachapell audio 583e 3 model 583e the lachapell audio 583e series module features a single-ended vacuum tube preamplifier designed for use in the “500 series” format. The microphone input configuration consists of an input transformer with a turns ratio of 1:10 and one ecc83/12ax7 vacuum tube. The i...
Lachapell audio 583e 4 safety precautions • always provide adequate ventilation by allowing the top vents of your 500 series power supply chassis to remain unobscured. Due to the vacuum tube and the internal secondary power supply, the 583 will get warm, blocking or defeating any existing vent is no...
Lachapell audio 583e 5 583e controls control details • tube drive / input gain: the input controls how much of the source signal is fed to the first stage of the vaccuum tube. Higher levels will drive the tube harder and result in more harmonics. Think of this control as your anount of tube colorati...
Lachapell audio 583e 6 • high frequency band: fully variable sweep range; 2.5khz to 20khz. Q value of 1 at +8db. • mid frequency band: fully variable sweep range; 325hz to 5khz. Q value of 1 at +8db. • low frequency band: fully variable sweep range; 30hz to 400hz. • eq assignment select: auto-patche...
Lachapell audio 583e 7 lachapell audio 583e specifications amplifier internal gain (microphone) 72db internal gain (hi-z) 52db max output gain +26dbu (1% thd+n) frequency response 10hz - 50khz (-3db) thd+n variable: 0.050% - 10% noise (ein) -121db (150ohm load) s/n ratio @ 30db gain 87db input imped...
Lachapell audio 583e 8 model 583e diagram microphone input tube amp balanced output phantom (+48v) control phantom direct input (unbalanced) input select -20db pad control -20db pad input gain output gain polarity control polarity lachapell audio 583s mkii user block diagram designer’s name page # o...
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