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Monolith III User's Manual

AC Power Connection

AC Power Connection

AC Power Connection

AC Power Connection

AC Power Connection

Electrostatic speakers use an internal power supply to
energize their electrostatic elements with high-voltage DC
(low current). As such, they must be connected to an AC
wall outlet. For this reason we have provided your speakers
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).

We do not recommend the use of "super cords", as many
of these designs eliminate the ground prong of the male
plug and therefore do not follow IEC convention standards.
If proper plugs are fitted, then the choice is up to you.

Your Martin-Logan speakers have been designed to
remain on continuously and should remain connected to a
continuous AC power source. As mentioned earlier, power
consumption of the 

MONOLITH III 

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,

The power cord should not be installed, removed,

The power cord should not be installed, removed,

The power cord should not be installed, removed,

The power cord should not be installed, removed,

or left detached from the speaker while the other

or left detached from the speaker while the other

or left detached from the speaker while the other

or left detached from the speaker while the other

or left detached from the speaker while the other

end is connected to an AC wall outlet.

end is connected to an AC wall outlet.

end is connected to an AC wall outlet.

end is connected to an AC wall outlet.

end is connected to an AC wall outlet.

Your Martin-Logan speakers are wired for the power
service supplied in the country of original consumer sale
unless manufactured on special order. 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 Martin-Logan 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 Martin-Logan
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. However, please make certain that you connect the
grounding wire or tab of the plug to a ground. These may
be obtained at your dealer or any hardware department.

Signal Connection

Signal Connection

Signal Connection

Signal Connection

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 dimin-
ishing returns setting in around #8 to #12.

A variety of speaker cables are now available whose
manufacturers claim better performance than with standard
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 

section on the

rear electronics panel of the 

MONOLITH III

. Use spade or

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

Be consistent when connecting the speaker cables to the

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 probably need to
reverse the (+) and (-) leads on one speaker to bring the
system into proper polarity.

The 

MONOLITH IIIp INTERFACE 

provides you with three

different methods for connecting the 

MONOLITH III 

to your

audio system, while the superior 

MONOLITH IIIx CROSSOVER

uses active bi-amplification.

Connection

Содержание Monolith III

Страница 1: ...The Monolith III Speaker System User s Manual...

Страница 2: ...stration with your speakers you cannot be assured of having received new units If this is the case please contact Martin Logan We know you are anxious to listen to your new speakers So to speed you al...

Страница 3: ...ults The fruit of this labor has brought us the passive IIIp INTERFACE and the superior electronic IIIx CROSSOVER With either of these two devices the transition from the electro static element to the...

Страница 4: ...l of the speaker and then to the wall outlet Extension cords may be used if necessary since the AC power requirement of the Monolith is extremely small Step 3 Signal Connection Step 3 Signal Connectio...

Страница 5: ...olts meter Weight Weight Weight Weight Weight 120 lbs speaker 54 4 kg speaker Size Size Size Size Size HWD 73 75 x 26 75 x 11 75 187 3cm x 67 9cm x 29 8cm Components Components Components Components C...

Страница 6: ...rrowed the field of contestants down to the cone and the electrostat The outcome would dictate the way that future generations would refer to loudspeakers as being either conven tional or exotic Bell...

Страница 7: ...s performance it presented a difficult load that some amplifiers did not like its dispersion was very directional and its power handling was limited to around 70 watts As a result many people continue...

Страница 8: ...ng and operating the speakers Substantially impaired perform ance or severe damage may occur to a Martin Logan speaker if operation is attempted from an incorrect AC power source If your home is not e...

Страница 9: ...one set of wires to the HI HI HI HI HI and HI HI HI HI HI binding posts of the IIIp INTERFACE Then connect a second set of wires to the LO LO LO LO LO and LO LO LO LO LO binding posts Next connect bot...

Страница 10: ...o amplifiers or two mono amplifiers and one stereo amplifier Get the idea here With either form of passive bi amplification your pre amplifier must have dual outputs If your pre amplifier is not so eq...

Страница 11: ...ropriate left and right inputs of both amplifiers See Figure 3a With vertical bi amping vertical bi amping vertical bi amping vertical bi amping vertical bi amping each of the stereo amplifiers is ded...

Страница 12: ...er because all frequency division of the signal is done at line level at very low power millivolts with active components transistors This configuration has several advan tages With the frequency divi...

Страница 13: ...ter all signal connections have been signal connections have been signal connections have been signal connections have been signal connections have been made and you have verified that made and you ha...

Страница 14: ...is labeled frequency and the right control is labeled boost cut See Figure 6 These are a very accurate and precise pair of controls that allow you to adjust your speakers output in the most problemat...

Страница 15: ...ame frequency as that of the worst offender and adjust the boost cut control to its appropriate position either up to cancel a void or down to cancel a peak you should begin to establish a smooth prog...

Страница 16: ...ave a much higher output impedance In addition many cables can change the preamplifiers output characteristics In order to assure a high level of performance with all types of preamps and cables the M...

Страница 17: ...namic cone drive a high Q driver in a large tuned usually ported box is required The trade off with this approach is poor speed acceleration and damping of the woofer driver The superior performance o...

Страница 18: ...s phenomenon Reflective Surfaces Reflective Surfaces Reflective Surfaces Reflective Surfaces Reflective Surfaces The hard surfaces of your room particularly if close to your speaker system will reflec...

Страница 19: ...in Logan electrostatic loudspeakers are known as bipolar radiators This means that they produce sound from both their fronts and their backs Consequently musical information is reflected by the wall b...

Страница 20: ...g with a wide listeningarea Eventhoughtheysufferfrom venetian blind effect angled multiple panel speakers can deliver good imaging but only to specific spots in the listen ing area Ascanbeseen pointso...

Страница 21: ...y with deeper bass and more spacious highs resulting After a few days of listening you can begin to make refine ments and hear the differences of those refinements The Back Wall The Back Wall The Back...

Страница 22: ...imaging is more open and spacious and the bass response tightened that is a superior position Move the speakers back six inches from the initial set up position Again listen to the imaging and bass r...

Страница 23: ...they sound for years to come Do not spray any cleaning solutions on the electrostatic element as this could impair the speakers performance Dust may be removed with a brush attachment on a vacuum cle...

Страница 24: ...e then applied to the stators The resulting electrostatic field created by the opposing high voltage on the stators works simultane ously with and against the diaphragm consequently moving it back and...

Страница 25: ...d damped and close to massless Unfortunately these condi tions are not available in our world today To make these cones and domes move all electromagnetic drivers must use voice coils wound on formers...

Страница 26: ...in imaging and staging performance due to the minutely accurate phase relationship of the full range panel wave launch Critical Zone Critical Zone Critical Zone Critical Zone Critical Zone 250 20kHz...

Страница 27: ...er with the inherent speed and accuracy of an electrostatic panel Since then refinements in the actual driver assemblies crossover compo nents and materials used in the construction of our hybrid spea...

Страница 28: ...o be any interaction Is there likely to be any interaction Is there likely to be any interaction Is there likely to be any interaction Is there likely to be any interaction between the Monoliths and t...

Страница 29: ...y be vacuumed off with a brush attachment connected to your vacuum cleaner or you may blow them off with compressed air DO NOT SPRAY ANY KIND OF CLEANING AGENT ON OR IN CLOSE PROXIMITY TO THEM No Outp...

Страница 30: ...el A numerical expression of the relative loudness of a sound The difference in decibels between two sounds is ten times the common logarithm of the ratio of their power levels DC DC DC DC DC Abbrevia...

Страница 31: ...by which it opposes the flow of electric current resulting in the generation of heat in the conducting material usually expressed in ohms Resistor Resistor Resistor Resistor Resistor A device used in...

Страница 32: ...3 00 2001 delaware street p o box 741 lawrence kansas 66044 phone 913 749 0133 fax 913 749 5320 1989 Martin Logan Ltd All rights reserved...

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