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10 Connections and Control Settings

This setup is recommended if your Depth will be used in a

2-channel only system and you intend to use the Depth’s

High Pass Filter Out.

Signal Connection (see figure 10):

1 Connect the left and right outputs of your preamplifier to

the left and right inputs of the Depth using quality RCA

interconnects. 

2 Connect the left and right outputs of your Depth to the

left and right inputs of your amplifier using quality RCA

interconnects.

Recommended Control Settings (see figure 3):

1 Set the controls as recommended on page 6.

2 The High Pass Filter: Out switch should be set, at the user’s

discretion, to the option with the best sounding result.

As a general rule, if your main loudspeakers are bookshelf

speakers, set the High Pass Filter: Out to 70Hz. Likewise,

40Hz for floorstanding loudspeakers. Use ‘None’, if you

want to pass an unaltered signal out of the Depth.

3 At this time the Depth’s Low Pass Filter should be set to

approximately 70% of your main loudspeakers lowest

frequency response—make note of this number, as you

will use it below to determine the correct setting for

your low pass filter.

If the High Pass Filter: Out is set to ‘None’, the Low Pass

Filter should remain at approximately 70% of your loud-

speakers lowest frequency response.

If the High Pass Filter: Out is set to 40Hz, the Low Pass

Filter should be set to 35Hz or 70%, whichever is greater.

If the High Pass Filter: Out is set to ‘70Hz’, the Low Pass

Filter should be set to 55Hz or 70%, whichever is greater.

Why the Filters Are Not Equal

You may have noticed the recommended setting procedure

above does not advise setting the Low Pass Filter and High

Pass Filter: Out to the same frequency. This is because you

are setting the filter points, not the crossover point. Between

20Hz and 100Hz, as the subwoofers output decreases, the

loudspeakers output increases. For a seamless crossover of

these two slopes, the summation of their two values, at any

given frequency, should add to maintain a level output. By

correctly setting your High Pass Out and Low Pass filters,

this result can easily be achieved (see figure 11).

Figure 10.

Signal connection for 2-channel mode with 2-channel output.

Figure 11.

Filters settings for a loudspeaker with a Low End of 56Hz.

2-Channel Mode With 2-Channel Output

Summary of Contents for Depth subwoofer

Page 1: ...D E P T HTM u s e r s m a n u a l c l s e l e c t r o s t a t i c M A R T I N L O G A N...

Page 2: ...t Equal Sub Out Using Multiple Depths 11 AC Power Connection 12 Replacing the Fuse Break In Placement 13 Listening Position Installing the Depth in a Cabinet Ask Your Dealer Enjoy Yourself Room Acoust...

Page 3: ...is manual for more details Step 3 Signal Connection Use the best interconnect cables you can High quality cables available from your specialty dealer are recommended and will give you superior perform...

Page 4: ...iency Low pass filtering high pass filtering and phase control have been designed to make integrating the Depth subwoofer with MartinLogan and non MartinLogan products both seamless and simple The mat...

Page 5: ...periment try different settings and be patient 25Hz Level Knob The 25Hz Level knob significantly adjusts the level between 20 and 30Hz by 12dB This is an area where peaks and dips of different amplitu...

Page 6: ...tain Y adapters from your dealer Recommended Control Settings see figure 3 1 Set the 25Hz Level control to 0 2 Set the low pass filter switch to to the closest option equal to 70 of your loudspeakers...

Page 7: ...ommended Control Settings see figure 5 1 Set the 25Hz Level control to 0 2 Use the bass management section of your processor s speaker level setup option to set the subwoofer level at an appropriate l...

Page 8: ...bass content turn the level control up until the music has deep extended bass that is not overwhelming 5 Try the phase control in different settings until the best blending is obtained If you are aug...

Page 9: ...pass filter switch to to the closest option equal to 70 of your loudspeakers lowest frequency response 3 While playing music with bass content turn the level con trol up until the music has deep exte...

Page 10: ...number as you will use it below to determine the correct setting for your low pass filter If the High Pass Filter Out is set to None the Low Pass Filter should remain at approximately 70 of your loud...

Page 11: ...nput for every connection Recommended Control Settings 1 Adjust the control settings of the first subwoofer using the recommended control settings from the connection method used to connect the master...

Page 12: ...r from the country of original sale be certain that AC power supplied in any subse quent location is suitable before connecting and operating the subwoofer Substantially impaired performance or severe...

Page 13: ...r subwoofer has a minimum of three inches of open space between the cabinet and the front left and right sides see figure 16 Ask Your Dealer Your MartinLogan dealer can suggest many options for optima...

Page 14: ...your room experience either an excess or a lack of bass Some people believe that having a room without parallel walls will eliminate this effect The truth is that non parallel walls only generate diff...

Page 15: ...uipment racks speakers etc Spike Installation Instructions 1 Carefully remove the grill cloths from your Depth 2 Carefully lay the Depth on its side to gain access to the bottom 3 Remove existing feet...

Page 16: ...then they should be of very high quality and able to play loud over 102 dB and reproduce bass below 80 Hz Center Channel Many experts believe this to be the most important speaker in a home theater s...

Page 17: ...and intermodulated distortions causing dramatic disturbances at high excursions This occurs significantly in almost all non servo controlled subwoofers To dramatically reduce these phenomena the Dept...

Page 18: ...s set to Auto or Standby will draw about 13 watts when idle Should I unplug my subwoofer during a thunderstorm Yes or before It s a good idea to disconnect all of your audio video components during st...

Page 19: ...ofer and provide a copy of your dealer receipt to MartinLogan within 30 days of purchase For your convenience MartinLogan also offers online warranty registration at www martinlogan com MartinLogan ma...

Page 20: ...r similar object Diaphragm A thin flexible membrane or cone that vibrates in response to electrical signals to produce sound waves Distortion Usually referred to in terms of total harmonic distortion...

Page 21: ...heat in the conducting material usually expressed in ohms Resistor A device that is used in a circuit primarily to pro vide resistance Resonance The effect produced when the natural vibra tion frequen...

Page 22: ...NOTES 22 Notes...

Page 23: ...Notes 23...

Page 24: ...101 Delaware Street Lawrence Kansas 66046 USA tel 785 749 0133 fax 785 749 5320 www martinlogan com c l s e l e c t r o s t a t i c M A R T I N L O G A N 2002 MartinLogan All rights reserved Rev 09160...

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