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 General Information     23

System Frequency Response

20–120 Hz ± 3 dB. Anechoic through the LFE effects input. 

Low Pass Filter Frequencies

30, 35, 45, 55, 65, 80Hz

High Pass Filter Frequencies

Bypass, 40Hz, 70Hz

Phase

0°, 90°, 180°, 270°

25Hz Level

±10dB

Power

On, Auto, Standby

Components

× 8” (20.3cm) high-excursion, aluminum cone with 

extended throw driver assembly, sealed non-resonant 

asymmetrical chamber format

Amplifiers

350W (at < 0.5% THD) 
900W (peak)

Inputs

Left/Right RCA Line Level, RCA LFE, Speaker Level

Output

RCA Sub Out (all inputs summed), RCA Right/Left (with 

High Pass Filter)

Input Impedance

20,000 Ohms

Power Draw

Max: 300 Watts; Idle: 15 Watts; Standby: 10 Watts

Weight

70 lbs. each (31.8 kg)

Size

17.9" inches H x 17.1" inches W x 16.5" inches D

(45.4cm H x 43.5cm W x 41.8cm H)

*Specifications are subject to change without notice.

Your subwoofer is provided with an automatic Limited 90 Day Warranty 
coverage. You have the option, at no additional charge, to receive 
Limited  3-Year  Warranty  coverage.  To  obtain  the  Limited  3-Year 
Warranty coverage you need to complete and return the Certificate of 
Registration, included with your subwoofer, and provide a copy of your 
dealer receipt, to MartinLogan within 30 days of purchase. 

For your convenience MartinLogan also offers online warranty registra-
tion at www.martinlogan.com.

MartinLogan may not honor warranty service claims unless we have a 
completed Warranty Registration card on file! If you did not receive 
a Certificate of Registration with your new subwoofer you cannot be 
assured of having received a new unit. If this is the case, please contact 
your authorized MartinLogan dealer.

Serial Number

Depth i’s serial number is located near the bottom 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 purchased. In 
most cases your dealer will be able to assist you in troubleshooting and 
resolving the issue. If the dealer is unable resolve the issue or if there 
is no local dealer in your area contact MartinLogan customer service 
directly by using the service request form at www.martinlogan.com or by 
calling 785-749-0133.

Before returning any product to MartinLogan for service first contact the 
service department for an RMA number. Incoming shipments will only 
be accepted if labeled with a MartinLogan issued RMA number.

Before returning this product to MartinLogan for service first contact the 
service department to receive a shipping kit which will include packing 
straps and packing instructions.

Should you be using a MartinLogan product in a country other than the 
one in which it was originally purchased, please note the following:

1  The appointed MartinLogan distributor for any given country is 

responsible for warranty servicing only on units distributed by or 
through it in that country in accordance with its applicable warranty.

2  Should a MartinLogan product require servicing in a country other 

than the one in which it was originally purchased the end user may 
seek to have repairs performed by the nearest MartinLogan distrib-
utor, subject to that distributor's local servicing policies. All cost of 
repairs (parts, labor, transportation) must be born by the owner of 
the MartinLogan product.

3  If, after owning your MartinLogan product for six months, you relo-

cate to a country other than the one in which it was purchased, your 
warranty may be transferable. Contact MartinLogan for details.

g

eneral

 I

nformatIon

Specifications*

Warranty and Registration

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...

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