MartinLogan E2 用户手册

You will need to set the dip switches for both right

and left channel. Note: Only one dip switch per dip

switch cluster should be on at a time.

If available, use test equipment to optimize the sub-

woofer response.

The 50Hz control works the same as the 25Hz control.

The phase settings allow the phase of the woofer sec-

tion to be modified in the crossover area. This allows

for a phase match between the ESL/transition-tower and

the subwoofer. The phase dip switch should be set to

270° to start. We have found this setting to work well

in most situations. To adjust the phase see figure four.

Replace the lid.

Plug the unit in.

10 Turn the amplifier on.

Note: This unit will generate electrical transients on its out-

puts when the power is turned off or on. This can cause

loud noises if the amplifiers are turned on.

Turn on both the woofer and ESL/transition-tower. Try

turning the woofer level up and down on the EXOS. This

will allow you to see how the crossover is meeting. If you

turn the woofer up and a suck-out appears at the

crossover frequency the phase switch on the EXOS needs

to be adjusted.

Adjusting the phase switch is best accomplished by trying

different settings with the amplitude of the woofer output

matching that of the ESL. Find the setting that creates the

biggest suck-out at the crossover point. Now flip the

switches to 180° from that position. Almost always the

270° default position is the best.

Figure 67. The four setting positions for the phase dip switches.

Making It All Work Together (Part 2)

Figure 66. The five setting options for the 25Hz and 50Hz dip switches

30 Making It Work Together