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page 16powered subwoofers
probably coming from another component.
Hum can also be caused by AC ground loops. If the Subwoofer is plugged into a
separate AC outlet, try plugging it into the same outlet used for your amplifier or
receiver, or reverse the polarity of its AC plug. If these suggestions do not solve
your problems, contact your dealer or M&K.
6. If there is an unusual sound coming from the Subwoofer with no music playing:
Try removing the input cables as described in Step 5 above. If the noise disappears, it is coming
from another component. If it does not go away, contact your M&K dealer or the factory.
IF YOU NEED TO REPLACE THE EXTERNAL FUSE:
Disconnect supply cord before changing fuse. Replace fuse only with same type. Remove the
fuse cap by pushing it in while turning it in the direction of the arrow. Look carefully at the fuse. If the
wire filament inside the glass is broken, replace the fuse ONLY with one of the identical size and value.
Using a larger fuse will void your warranty AND MAY CREATE A FIRE HAZARD. Plug the Subwoofer
back in and try again. If it does not work, unplug it immediately, and contact your M&K dealer or the
factory for service.
REPLACEMENT FUSE VALUES
Replace only with same type 3AG-250 VAC SLO-BLO 1 1/4" x 1/4" fuse.
MODEL 110 v 220 v MODEL 110 v 220 v
MX-2000 6 amp 3 amp MX-1000 2 amp 1 amp
MX-100 4 amp 2 amp MX-90 2 amp 1 amp
MX-80 1.25 amp .75 amp MX-70 2 amp 1 amp
V-100 4 amp 2 amp V-125 2 amp 1 amp
V-90 1.25 amp .75 amp V-1B 2 amp 1 amp
V-2B 1 amp .75 amp V-3B 1.25 amp .75 amp
VX-4 1 amp .75 amp VX-7 1 amp .75 amp
12. IF YOU NEED SERVICE
Contact your dealer or M&K with a complete description of the problem. Please have the unit's
model and serial numbers (found on the back of the cabinet), date of purchase, and the name of your
dealer. You can call M&K between 8:30 AM and 5:00 PM Pacific Time, Monday through Friday, at (310)
204-2854. If you call outside these hours, leave a message, and we will return your call.
DO NOT RETURN YOUR SPEAKERS TO THE FACTORY FOR
SERVICE WITHOUT OBTAINING PRIOR AUTHORIZATION.
All M&K powered subwoofers carry a three year limited parts and labor warranty. This warranty
is transferable to new owners up to three years from the date of original purchase, and it includes
Subwoofer amplifiers. It does not cover abuse, misuse, repairs by unauthorized service stations,
speakers without serial numbers, and those damaged in shipping or by accident. If you have any
questions about the warranty, please contact M&K.
rev 07.1094