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Sequel II User's Manual

Operation

Signal Connection

Use the best speaker cables you can! The length and type
of speaker cable used in your system will have an audible
effect. Under no circumstance should a wire of gauge

higher (thinner) than #16 be used. In general, the longer
the length used, the greater the necessity of a lower gauge,
and the lower the gauge, the better the sound, with
diminishing returns setting in around #8 to #12.

A variety of speaker cables are now available whose
manufacturers claim better performance than with stan-
dard heavy gauge wire. We have verified this in some
cases, and the improvements available are often more
noticeable than the differences between wires of different

gauge.

We would also recommend, if possible, that short runs of
speaker cable connect the power amplifier(s) and speak-
ers and that high quality long interconnect cables be used

to connect the preamplifier and power amplifier. This results
in the power amplifiers being close to the speakers, which
may be practically or cosmetically difficult, but if the length
of the speaker cables can be reduced to a few meters,
sonic advantages may be obtained. The effects of cables

may be masked if the equipment is not of the highest
quality.

Connections are done at the Signal Input

Signal Input

Signal Input section on the

rear electronics panel of the Sequel II. Use spade or

banana connectors for optimum contact and ease of
installation. Make certain that all your connections are tight
and positive.

Be consistent when connecting the speaker cables to the

Signal Input

Signal Input terminals. Take care to assign the same
color cable lead to the (+) terminal on both the left and
right channel speakers. If bass is nonexistent and you
cannot discern a tight, coherent image, you may need to
reverse the (+) and (-) leads on one speaker to bring the

system into proper polarity.

AC Power Connection

Because your Martin-Logan Sequel II's use an internal power
supply to energize their electrostatic cells with high-voltage
DC, they must be connected to an AC power source. For this

reason they are provided with the proper IEC standard power
cords. These cords should be firmly inserted into the AC power
receptacles on the rear connection panel of the speakers,
then to any convenient AC wall outlet. Extension cords may be
used, if necessary, since the AC power requirement of the

speaker is extremely small (less than 2.5 watts). The Sequel II's
have been designed to remain on continuously and should
remain connected to a continuous AC power source. As
mentioned earlier, power consumption of the Sequel II's is very
small and the life expectancy of its components will not be

reduced by continuous operation.

The power cord should not be installed, removed, or

left detached from the speaker while the other end is

connected to an AC power source.

Your Sequel II speakers are wired for the power service
supplied in the country of original consumer sale. The AC

power rating applicable to a particular unit is specified
both on the packing carton and on the serial number plate
attached to the speaker.

If you remove your Sequel II speakers from the country of

original sale, be certain that AC power supplied in any
subsequent location is suitable before connecting and
operating the speakers. Substantially impaired perform-
ance or severe damage may occur to a Sequel II speaker if
operation is attempted from an incorrect AC power source.

If your home is not equipped with three-prong wall outlets,
you may use “cheater” plugs to connect the speakers to AC
power. These may be obtained at your dealer or any
hardware department.