MartinLogan Source Speakers Specifications download pdf (Page 6)

ODYSSEY

Please take note of the jumper clips installed under the

binding posts. These clips attach the high and low frequency

sections of the crossover together. Leaving these in place,

connect the (+) wire from your amplifier to either red bind-

ing post and the (-) wire from your amplifier to either black

binding post (See Figure 2).

Bi-Wire Connection

This method of connection 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 Odyssey.

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 (+) ampli-

fier terminals and both (-) wires to the (-) amplifier terminals.

This is known as a parallel connection (See Figure 3).

For those that desire ultimate performance, the Odyssey

may be passively bi-amplified using the existing internal pas-

sive crossover elements.

WARNING! Only after the 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 ampli-

fiers if the jumper clips are not removed.

This method takes the bi-wiring concept one step further.

Now you will have a dedicated channel of amplification

directly connected to the high and low pass sections of the

Odyssey 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

amplifiers, 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.

Horizontal Passive Bi-Amplification

Horizontal bi-amping allows you to use two different types,

models or brands of amplifiers (i.e. tubes on top, transistor

on the bottom). However, we recommend that you use

two identical amplifiers (i.e. same brand and model).

If you must use two different amplifiers, it is essential that

they have the same gain or that one of the two have adjustable

gain so that you can match their gain characteristics. If the

Single-Wire Connection Passive Bi-Amplification

Figure 2. Single-Wire Connection. One Channel shown.

Amplifier

Jumper clips

in place,

full-range

speaker output

ESL

Woofer

Bass Control

-3dB

flat

Figure 3. Bi-Wire Connection. One Channel shown.

Amplifier

speaker output

Jumper clips

removed

ESL

Woofer

ODYSSEY

Bass Control

-3dB

flat

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MartinLogan Source Speakers Specifications Page 6

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