MartinLogan Speaker System - Manual (Page 3)

Page 3 STATEMENT Set-up Manual
properly engage a switch, you need to have all other
switches opposed away from the rear jacks (off - one
switch on at a time). Begin by setting both the low-pass
and the high- pass in the number one position. If the
high-pass and low- pass amplifiers have the same gain,
the system is designed to operate with both dip switches
set to “1” (Position “1” represents no attenuation). If the
gain difference is known, attenuate the higher gain
amplifier by the known gain difference using the switch
one number higher than the attenuation needed in dB (Ie:
switch “4” is 3db attenuation-all switches open is 8dB
down).
OPEN
Does not matter.
1
1,3,4,5,6,7,8
1,2,4,7,8
1,2,4,5,6,7,8
1,2,3,5,7,8
1,2,3,5,6,7,8
1,2,3,4,6,8
1,2,3,4,6,7,8
1,2,3,4,5,7
1,2,3,4,5,7,8
1,2,3,4,5,6,8
1,2,3,4,5,6,7
1,2,3,4,5,6,7,8
CLOSED
1
2,3,4,5,6,7,8
2
3,5,6
3
4,6
4
5,7
5
6,8
6
7
8
None
ATTENUATION
0 dB
-0.5 dB
-1.0 dB
-1.5 dB
-2.0 dB
-2.5 dB
-3.0 dB
-3.5 dB
-4.0 dB
-4.5 dB
-5.0 dB
-6.0 dB
-7.0 dB
-8.0 dB
If equipped, the best way now to obtain the optimal
setting is to locate a spectrum analyzer in the room near
your seating position, turn one system on with pink noise
and begin to observe the relationship of the stat panel
and the subwoofer at the crossover point approximately
at 100 Hz. When you begin to see the spectrum becom-
ing correct at that point, that is when you have the optimal
crossover format. By correct, I mean flat, or even. The
energy below 100 Hz is roughly comparable to the energy
above 100 Hz. You should have reasonable tonal
balance from 60 Hz onward to 200 Hz. At that point you
have the optimal frequency balance at the crossover
point. Keep in mind that specs and equipment can
determine the best place to begin, but your ears are the
most critical instrument available. Listen and adjust for
your personal best balance.
(Rated Output @ 8 ohms) x 8
Input Sensitivity
You are now ready to connect the electrostatic panel to
the interface module via the three color coded pin-plugs.
Naturally, black to black, green to green and red to red.
The blue stat panel wire goes to the green pin-plug on
the interface module.
Observing from the back of the interface module you will
see five-way binding posts, screw terminals, soft-contour
switches, and the AC input.
Proceed by plugging in the AC power cord, first at the
interface module, then to the wall outlet. Then attach to
your high-pass amplifier via the screw terminals or the
five-way binding posts. They are internally parallel
connected so that either terminal set may be used.
Do not use both with different power amplifiers!
Use only one!
Crossover Settings Crossover Settings Crossover Settings Crossover Settings Crossover Settings
Before you connect the crossover and begin listening,
there are some internal switches that must be set.
However, if you are using identical amplifiers for the high
and low pass sections of the Statement, you may skip
this step.
Remove the covers from the crossover modules that
have the control knob. Inside you will see, towards the
back, two red dip switches. The left dip switch as you
face the crossover attenuates the low pass, the right dip
switch attenuates the high-pass. These switches will
balance the gain in amplifiers with different gain charac-
teristics.
The following formula will help you calculate the gain of
each amplifier:
Amplifier Gain = 20 log
Below is a list of switch settings to help you select the
proper gain switch settings.
As you detent the switch towards the rear jacks, you are
engaging that switch. In other words, you are turning the
transducer down by 1 decibel per position as you detent
the switch in numerical order away from1. In order to