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S-5000THX & S-150THX satellite speakers
page 11
This flat top contains multiples of the original amplified frequencies, sometimes at higher levels than the
original signal itself. For tweeters, this can be very damaging, as this distortion is well above the audible range,
where you will be unable to hear it, and where the tweeter is more vulnerable to damage.
When an amplifier clips, its sound becomes harsh and grating, and a break-up is often audible in the bass
frequencies. It will become uncomfortable to listen to, compared to a slightly lower volume level. When you are
listening at high volume levels, be aware of the onset of clipping distortion, and turn the volume down slightly
if the sound takes on the character described above.
When tone controls or equalizers are used to boost frequencies, the problem occurs much more rapidly.
Even a small boost of low or high frequencies can easily double the power requirement and lead to amplifier
clipping at moderate levels. Therefore, you should use your tone controls judiciously, avoiding extreme boosts
of the bass and treble controls, especially when you are listening at high volume levels.
The best way to avoid speaker damage is to use common sense. Use moderate boosts of tone controls
or equalizers, at the very most. Listen carefully for any harshness and break-up, especially at high volume levels,
and turn down the volume when needed. If you cannot get enough volume, you may need to consider a higher-
powered amplifier. If you have any questions about this, please contact M&K, and we will be happy to discuss
it with you further.
11. BI - AMPLIFYING YOUR SATELLITES
WITH M&K HIGH PASS FILTERS
One excellent way to improve the sound of your Satellite speakers (and protect them if you listen at high volume
levels to music with substantial deep bass output), is by using an M&K High-Pass Filter. The M&K HP-80 and
VF-80 High-Pass Filters improve the performance of any system that allows for separation of its preamp and power
amp stages, by filtering the bass signal fed to the main amplifier and Satellite speakers.
These filters will give you greater dynamic range, lower distortion, and an increased maximum output level. If you
have any questions about the suitability of your components, please contact your M&K dealer or the factory.
To use these filters with an integrated amp or receiver, the amp/receiver MUST have back panel RCA jacks
labelled Preamp/Main Output AND Power Amp/Main Input (or Front Out/Front In) for all of the channels you want to
filter (including the center channel). You may have to operate a switch or remove jumper connections on the amplifier.
If you can use one of these filters, you simply connect one set of shielded RCA - RCA interconnect cables between
the receiver, amp or preamp's Main Output and the HP-80 or VF-80, with a second set between the HP-80 or VF-80
and the Main Input of the receiver or amplifier, and a third set from the HP-80 or VF-80 to the Subwoofer. See the
instruction sheet that comes with the High-Pass Filter for more information.
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 your dealer's name. You can call M&K
between 8:30 AM and 5:00 PM Pacific Time, Monday through Friday, at (818) 701-7010. 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 Satellite speakers carry a five 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.