background image

It had long been the practice of stereo buffs to connect 

their television to the stereo system. The advantage was the 

use of the larger speakers and more powerful amplifier of the 

stereo system. Even though the sound was greatly improved, 

it was still mono and limited by the broadcast signal.

In the late 1970's and early ‘80's two new home movie formats 

became widely available to the public: VCR and laser disc. 

At the same time video screen sizes began increasing.

By 1985, both formats had developed into very high qual-

ity audio/video sources. In fact, the sonic performance of 

some video formats exceeded audio-only formats. Now, 

with theater quality sound available at home, the only 

element missing was the "surround sound" presentation 

found in movie houses.

Fortunately, "Dolby" and "DTS" encoded material (which 

include almost all movies) have the same surround sound 

information encoded on home releases as the theater films. 

All that is required to retrieve this information is a decoder, 

additional speakers, subwoofer(s) and amps to reproduce it.

Home theater is a complex purchase and we recommend 

that you consult your local MartinLogan dealer, who is well 

versed in this subject.

Each piece of a surround system can be purchased sepa-

rately. Take your time and buy quality. No one has ever 

complained that the movie was too real. The following list 

and descriptions will only give you a brief outline of the 

responsibilities and demands placed on each speaker. 

Front Left and Front Right

If these speakers will also be the same two used for your stereo 

playback 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 system, as almost all of the dialogue and 

a large portion of the front speaker information is repro-

duced by the center channel. It is important that the 

same manufacturer of the front speakers design the center 

speaker and that it is recommended for use as a center 

speaker. This is not the place to cut corners.

Surround Speakers

The surround, or effect speakers contain critical informa-

tion. In films, sound effects are vital to the director in 

delivering a complete experience and the rapid technical 

increase in the discreet capacity of these effects channels 

has made their quality vital. This is equally true in music 

play back because of the emerging high definition, multi-

channel music only formats. Full range instruments, voices 

and ambient queues are being routed to the effects chan-

nel. In the past, some may have suggested that this was 

the place to save money by purchasing small inexpensive 

speakers. If you choose to do so, be prepared to upgrade 

in the future.

Subwoofer

With any good surround system you will need one or more 

high quality subwoofers (the .1, in a 5.1 channel surround 

system). Most movie soundtracks contain large amounts 

of bass as part of the special effects. Good subwoofers will 

provide a foundation for the rest of the system.

Figure 19 .

 Summit speakers as front channels, the Stage as the center 

channel, Script i speakers as side surround (effects) channels, and  
Depth  i subwoofers as LFE (effects) channel.

Home Theater     19

H

ome

 t

Heater

Summary of Contents for Depth I

Page 1: ...D e p t h i u s e r s m a n u a l tm...

Page 2: ..._ High Pass _______________________________________ Low Pass _______________________________________ WARNING Do not use your Depth i loudspeakers outside of the country of original sale voltage requir...

Page 3: ...Thank you to you the MartinLogan owner for loving what we do and for making it possible for us to do what we love...

Page 4: ...llowing deep tight well defined bass Servo control woofer technology minimizes distortion A proprietary digital amplifier drives the output stage with precision and extremely high efficiency Low pass...

Page 5: ...with the lightning bolt symbol should be connected by an instructed person or by way of ready made terminals The power cord should remain readily oper able should any abnormal conditions occur Step 1...

Page 6: ...the bass management When connected in 2 channel mode via its speaker or line level left right input the low pass filter is active As a general rule the Low Pass Filter should be set at the option appr...

Page 7: ...when there is none The On setting prevents the Depth i from entering energy saving mode The Standby setting forces the Depth i into energy saving mode While set to Standby the Depth i will not operate...

Page 8: ...ker cable Depth i s Low Pass Filter control effects the signal received through these inputs Status Light The Depth i is equipped with a multi color LED to indicate the current status of the woofers T...

Page 9: ...o the closest setting below the resulting number 2 Play familiar music with bass content Increase the Level control until the music has deep extended bass Be careful to avoid levels that become overwh...

Page 10: ...pe speakers in limited or narrow mode Recommended Control Settings see figure 7 1 With multi channel source material playing adjust the Level control to your preferred level 2 Try the phase control in...

Page 11: ...te the number equal to 70 of your main loud speaker s lowest frequency rating Set the Low Pass Filter switch to the closest setting below the resulting number 3 While playing familiar music with bass...

Page 12: ...fier only has one set of outputs you may connect your amplifier to your speakers as normal and run an additional set of cables from your speakers to the subwoofer s Speaker Level In binding posts It i...

Page 13: ...response make note of this number If the High Pass Filter Out is set to None the Low Pass Filter should remain at approximately 70 of your loudspeakers lowest frequency response If the High Pass Filt...

Page 14: ...oofer in the chain using the same input for every additional connection Recommended Control Settings 1 Adjust the control settings of the first subwoofer using one of the five modes previously describ...

Page 15: ...he power service supplied in the country of original consumer sale The AC power rat ing applicable to a particular unit is specified both on the packing carton and on the serial number plate attached...

Page 16: ...um of three inches of open space between the cabinet and the front left and right sides see figure 17 Ask Your Dealer Your MartinLogan dealer can suggest many options for optimal subwoofer placement T...

Page 17: ...cally this is only a problem with frequencies below 100Hz When this happens different parts of your room experience either an excess or a lack of bass Some people believe that having a room without pa...

Page 18: ...n Instructions 1 On a soft padded surface carefully lay your subwoofer on its side to gain access to the bottom 2 Remove existing feet or spikes Thread new spikes into holes and screw them in all of t...

Page 19: ...so be the same two used for your stereo playback 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 b...

Page 20: ...performance limitations of a heavy and hard to control single large driver Servo Controlled Dynamic Drivers All dynamic drivers generate distortion caused by spider and surround nonlinearities as wel...

Page 21: ...components are turned on Check that the master power switch adjacent to the AC receptacle is set to On Check that the power switch on the subwoofer is set to either Auto or On Check your wires and con...

Page 22: ...Dimensional Drawings Plan View Top Front Elevation Back Elevation 22 Dimensional Drawings Side Elevation...

Page 23: ...ttom of the backplate Each individual unit has a unique serial number Service In the rare event that your MartinLogan product should require service please contact the dealer from whom the product was...

Page 24: ...sound The difference in decibels between two sounds is ten times the Base 10 logarithm of the ratio of their power levels DC Abbreviation for direct current Diffraction The breaking up of a sound wave...

Page 25: ...of the RMS sound pressure Resistance That property of a conductor by which it opposes the flow of electric current resulting in the generation of heat in the conducting material usually expressed in o...

Page 26: ...26 Notes Notes...

Page 27: ...Notes 27 Notes...

Page 28: ...utside of the country of original sale voltage requirements vary by country Improper voltage can cause damage that will be potentially expensive to repair The Depth i is shipped to authorized MartinLo...

Reviews: