MartinLogan Vista Specifications download pdf (Page 7)

Connections 7

CONNECTIONS

AC Power Connection

Because your Vista speakers use an internal power supply

to energize their electrostatic cells 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. The Vista’s integrate a signal

sensing power supply which will switch off after five min-

utes of no music signal, and requires less than two seconds

to recharge the panels when a music signal is present.

Your Vista speakers are wired for the power service sup-

plied 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 Vista

speakers from the country of original sale, be certain that

the AC power supplied in any subsequent location is

suitable before connecting and operating the speakers.

Substantially impaired performance or severe damage

may occur to an Vista speaker if operation is attempted

from an incorrect AC power source.

WARNING! 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.

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 lon-

ger 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 cables are available whose

manufacturers

claim better performance than standard heavy gauge wire.

We have verified this in many cases, and the improvements

available are often more noticeable than the differences

between wires of different gauge. The effects of cables

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

Connections are done at the signal input section on the

rear electronics panel of the Vista. Use spade connectors

for optimum contact and ease of installation. Hand tight-

en the binding posts, but do not overtighten—do not use

a tool to tighten the binding posts.

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 may need to reverse

the (+) and (–) leads on one speaker to bring the system

into proper polarity.

WARNING! Turn your amplifier off before

making or breaking any signal connections!

Break-In

When you first begin to play your Vista speakers, they

will sound a bit bass shy. This is due to the high quality,

long-life components used in our woofer. Our custom

made, butyl surround woofer requires approximately

72 hours of break-in at 90 dB (moderate listening levels)

before any critical listening. The break-in requirements

of the crossover components (and, to a lesser degree, the

stator) are equivalent.

Jumper Clips

In some countries federal law prohibits MartinLogan from

supplying jumper clips. If none are found installed under

your speakers binding posts, please refer to ‘Bi-Wire

Connection’ for connection instructions.

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MartinLogan Vista Specifications Page 7

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