MartinLogan E2 manual Making IT Work Together, Making It Work Together Part, Subwoofer Level Knob

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MAKING IT WORK TOGETHER

Making It Work Together (Part 1)

Now that you know all the connection options and how to set them, it’s time to make the speakers work in their target environment. For this part, it is recommended that an audio analyzer be used (RTA or a computer based instrument).

Start with default settings. Look at the 200Hz to 500Hz area of the ESL-transition tower alone. If there is too much energy in this area, try changing the jumpers in the passive high-pass accordingly (see page 26).

Note how low the transition tower is playing. The transition tower is somewhat dependent on back wall reflections for its low frequency extension. If it is set right it should respond well down to 60HZ.

If it does not play to 60Hz, the speaker is either to close or to far from the back wall. If the speaker is over 7 feet from the wall, try moving it back. If it is under 5 feet, try moving it out. Side wall distance can effect this as well. Some experimen- tation may be in order.

Subwoofer Level Knob

Setting the level too high will cause the bass to seem bloated and is the single most common cause of bad sounding subwoofers. A rule of thumb is that the subwoofer should not draw attention to itself, but should simply make the systems low end seem more extended and accurate.

Setting the Dip Switches

This should only be done by a qualified technician.

Note: Sonic measuring equipment is highly recommend- ed for this part of the setup.

There are three controls that can be set by the dip switches located inside the EXOS (see figure 65):

25Hz Level (–8,–4,0,+4,+8)dB

50Hz Level (–8,–4,0,+4,+8)dB

Phase Adjustment (0°, 90°, 180°, 270°)

How to adjust the dip switches:

1Turn off all amplifiers connected to the EXOS.

2Unplug the unit.

3Remove the lid.

4If more output is desired at 25Hz flip the +4dB or the +8dB dip switches to on. If less bass is desired at 25Hz flip the –4dB or the –8dB dip switches to on.

Figure 64. The Exos E2.5 subwoofer level knob.

Figure 65. The exos six dip switch clusters. All set in their default position.

Making It Work Together 29

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Contents A T E M E N T TM E Contents Master Packing List Before YOU BeginRequired Tools Unpacking the Statement E2Initial Speaker Placement Speaker PlacementWall Behind the Listener Wall Behind the SpeakersSubwoofer Tower Assembly AssemblyAssembly Assembly Assembly Assembly Transition/Electrostatic Tower Assembly Finished transition tower assembly Assembly Assembly Assembly Assembly Tighten frame bolts as shown Assembly Assembly Assembly Assembly CONNECTIONS-EXOS Crossover Inputs Exos signal inputs. Balanced connection shownFull Range Outputs CONNECTIONS-EXOS Crossover OutputsSubwoofer Outputs Horizontal Passive Bi-Amplification Bi-Wire ConnectionCONNECTIONS-ESL/TRANSITION Towers Vertical passive bi-amplification. One Channel shown Vertical Passive Bi-AmplificationOhm/Bi-Amp Connection CONNECTIONS-SUBWOOFER TowersOhm Connection High-Pass Settings Passive HIGH-PASS SettingsOpen not connected jumpers Exos E2.5 IEC power cord AC receptacle AC Power ConnectionsMaking IT Work Together Setting the Dip SwitchesMaking It Work Together Part Subwoofer Level KnobMaking It All Work Together Part Five setting options for the 25Hz and 50Hz dip switchesESL Tower Spike Installation Speaker Placement Fine TuningHard Sound Tweaking the RoomMartinLogan, All rights reserved Rev. #100203