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CARE AND MAINTENANCE
CHAPTER 5
CARE AND MAINTENANCE
POWER DOWN
Due to the fact that the M1 amplifier/DAC generates high-voltages and also runs warm in use (this is
perfectly normal for a Class-A amplifier), it should be powered down when not in use for extended
periods or left unattended.
CLEANING
The amplifier/DAC unit should be cleaned with a soft, dry cloth. Never use anything abrasive as this may
damage the metal finish. Do NOT use liquid/aerosol cleaners.
The headphones should be cleaned with a soft, dry, micro-fiber cloth. This is also the case for the leather
parts. Do NOT use any liquid/aerosol cleaners as they may damage the leather and cause failure of the
pads.
Failure to follow these instructions will invalidate your warranty.
REPLACING THE EAR PADS
Ear pads may need replacement after years of extended use
or if inadvertently damaged. Replacement pads are available
from your dealer or the Sonoma Acoustics website.
To remove the old pads, carefully insert a finger into the ear
cup so that it is behind the ear pad as much as possible. Take
care not to damage the webbing or electrostatic panel! Then,
with your thumb, firmly grasp the ear pad, and pull it away
from the ear cup.
Place the new pad on the ear cup with the seam in the leather
at the BOTTOM of the ear cup. Then, carefully, press firmly all
around the pad to attach it. Check that the ear pad is firmly
seated and tight to the ear cup all around its perimeter. This is
essential to ensure an air-tight seal and correct bass response.
