Single-Wire Connection; Bi-Wire Connection; Passive Bi-Amplification - MartinLogan Vista User Manual

Single Wire Connection
Please take note of the jumper clips installed under the
binding posts. These clips attach the high and low fre-
quency sections of the crossover together. Leaving these
in place, connect the (+) wire from your amplifier to
either red binding post and the (–) wire from your ampli-
fier to either black binding post (see figure 2).

Bi-Wire Connection

This connection method replaces the jumper clips installed
under the binding posts with individual runs of speaker
wire from your amplifier. This doubles the signal carrying
conductors from the amplifier to the speaker, thus direct-
coupling each portion of the crossover to the amplifier.
To bi-wire you must first loosen the binding posts and
remove the jumper clips. Connect one set of wires to the
upper set of binding posts which connect to the panel
of the Vista. Then connect a second set of wires to the
lower binding posts which connect to the woofer. Next,
connect both sets of wires to the appropriate terminals on
your amplifier. Please take care to connect both (+) wires
to the (+) amplifier terminals and both (-) wires to the (–)
amplifier terminals. This is known as a parallel connection
(see figure 3).
Figure 2. Single-wire connection. One channel shown.
8 Connections

Passive Bi-Amplification

For those that desire ultimate performance, the Vista may
be passively bi-amplified using the existing internal pas-
sive crossover elements.
WARNING! Only after jumper clips are removed
may you connect individual runs of speaker cable
from your amplifiers to the high pass (ESL) and
low pass (WOOFER) signal input binding posts.
Damage will occur to your amplifiers if the jumper
clips are not removed.
This method takes the bi-wiring concept one step further.
You will have a dedicated channel of amplification direct-
ly connected to the high and low pass sections of the Vista
crossover. There are two different methods for bi-amping
with two stereo amplifiers. The first and most common is
referred to as Horizontal Bi-amping. The second method
is referred to as Vertical Bi-amping. With either method
you may use two stereo amplifiers or four mono ampli-
fiers, or two mono amplifiers and one stereo amplifier.
Get the idea? With either form of passive bi-amplification,
your preamplifier must have dual outputs. If your pream-
plifier is not so equipped, you must either purchase or
construct a "Y" adapter.
Figure 3. Bi-wire connection. One channel shown.