LACHAPELL AUDIO 503
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MODEL 503
The LaChapell Audio 503 is a 3-band transformer-less EQ based on the EQ section of the 583E pre/EQ.
The 503 features additional cut/boost range of +/12dB, 2-position high-pass and 2-position low-pass
filters along with a gain trim stage of +/- 6dB.
BEFORE YOU GET STARTED
Stated below are a few areas that you must take the time to read before you install and use your 500
Series. You as the owner/user are responsible for completely understanding how to operate this device
safely and properly.
• UNPACKING: Inspect thoroughly. Although we take extreme care at final assembly and packing,
things can happen during transit. It is very important that you contact LaChapell Audio if there is
anything broken or damaged upon receipt of package. Included in every package should be:
(1) preliminary operating manual, (1) packet of mounting screws, (1) registration card. It is a good
idea for you to retain the packaging (box & foam case) in case there is a need to return the unit
for service or repair at a later date.
• SERVICE/REPAIR - WARNING: Only Digital Audio Labs personnel are to perform maintenance and
service activities.
SAFETY PRECAUTIONS
• Always provide adequate ventilation by allowing the top vents of your 500 series power supply
chassis to remain unobscured.
• Never position the power supply directly above other heat generating sources such as a power
amplifier.
• Always provide a source to ground (earth.) Never under any conditions should a power cord that
has the 3rd prong for ground missing or defeated be used with the power supply.
• Do not place the 503 in an area where there is a potential for fluids to fall, spill into or come in
contact with the 503. If you notice fluids or moisture present inside the 503 DO NOT turn power on!
Contact Digital Audio Labs for direction.
