MartinLogan Monolith III User Manual

Page 11

Page11

Monolith III User's Manual

eliminate the negative effects of time
delay (also referred to as group delay)
that occurs when a signal passes
through two dissimilar amplifiers. The
very nature of vertical bi-amping
dictates that both amplifiers be identical.

With horizontal bi-amping

horizontal bi-amping

horizontal bi-amping, one

amplifier drives the high-pass section
while the second amplifier drives the

low-pass section. To horizontally bi-

horizontally bi-

amp

amp your Monoliths you must remove
the jumpers from the

AMPLIFIER SIGNAL

binding postsof the

IIIp INTERFACE.

Connect the low frequency amplifier to
the LO+

LO+

LO+ and LO-

LO-

AMPLIFIER SIGNAL

binding posts of each

IIIp INTERFACE.

Connect the high frequency amplifier to
the HI+

HI+

HI+ and HI-

HI-

HI- binding posts. Next

connect the left and right preamplifier

outputs to the appropriate left and right
inputs of both amplifiers. See

Figure

3a.

With vertical bi-amping

vertical bi-amping

vertical bi-amping, each of the

stereo amplifiers is dedicated to one
speaker. For instance, the left channel
of each amplifier drives the low -pass
section while the right channel drives
the high-pass section. To vertically bi-

vertically bi-

amp

amp your Monoliths, you must remove
the jumpers from the

AMPLIFIER SIGNAL

binding posts of each

IIIp INTERFACE.

Start by connecting the left amplifier
channel of amplifier #1 to the LO+

LO+

LO+ and

LO-

LO- binding posts and the right
amplifier channel of amplifier #1 to the
HI+

HI+

HI+ and HI-

HI-

HI- binding posts of the

IIIp

INTERFACE. Then repeat the same
procedure for the other speaker with
amplifier #2. Connect the left preampli-
fier outputs to both inputs of the left
channel amplifier (#1) and the right
preamplifier outputs to both inputs of
the right channel amplifier (#2). See
Figure 3b.

Figure 3b

Figure 3b: Vertical passive bi-amplification connection for the

MONOLITH IIIp.