MartinLogan Grotto I Скачать руководство пользователя | Manualshive

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Содержание Grotto I

Страница 1: ...G r o t t o i u s e r s m a n u a l tm ...

Страница 2: ...___ High Pass _______________________________________ Low Pass _______________________________________ WARNING Do not use your Grotto i loudspeakers outside of the country of original sale voltage requirements vary by country Improper voltage can cause damage that will be potentially expensive to repair The Grotto i is shipped to authorized MartinLogan distributors with the correct power supply fo...

Страница 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 ...

Страница 4: ...ary digital amplifier drives the output stage with precision and extremely high efficiency Low pass filtering and phase control have been designed to make integrat ing the Grotto i subwoofer with both MartinLogan and non MartinLogan products both seamless and simple The materials in your new Grotto i subwoofer are of the high est quality and will provide years of enduring enjoyment and deepening r...

Страница 5: ...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 Unpacking Remove your new subwoofer from its packing Note Retain original packing materials for future use Step 2 Placement Ideally place the subwoofer in a corner near the front of the room Please see the Placement sec...

Страница 6: ...nse Example The MartinLogan Vista s low est frequency response is 43Hz 70 of 43Hz equals 30 1 so you should set the Grotto i s low pass filter to 30Hz Remember this is a general rule We advise that once you try the recommended set ting using the formula above you should try the surrounding settings to see which sounds best Phase Control The phase control is entirely dependent on the size and confi...

Страница 7: ...ng standard speaker cable Grotto i s Low Pass Filter control effects the signal received through these inputs Status Light The Grotto i is equipped with a multi color LED to indicate the current status of the woofers The following list explains the meaning of the different colors No color No power The subwoofer is not plugged in or the fuse has blown Green Play mode This indi cates the subwoofer d...

Страница 8: ...tch to 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 overwhelming 3 Try the phase control in different settings until the best blending is obtained If you are using the subwoofer to augment other MartinLogan products we suggest start ing with the phase s...

Страница 9: ...cturers It is recommended to run center and effects type speakers in limited or narrow mode Recommended Control Settings 1 With multi channel source material playing adjust the Level control to your preferred level 2 Try the phase control in different settings until the best blending is obtained If you are using the subwoofer to augment other MartinLogan products we suggest start ing with the phas...

Страница 10: ...ing on page 10 2 Calculate 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 content turn the level control up until the music has deep bass that is not overwhelming 4 Try the phase control in different settings until the best blending is obtained If yo...

Страница 11: ...y speaker cable If your amplifier 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 is also possible to connect the left and right outputs of your amplifier to the left and right speaker level high level inputs of the subwoofer and run an additional set of...

Страница 12: ...than 55Hz change the setting to 55Hz The Low Pass Filter should be set to 55Hz or 70 of your main loudspeakers lowest frequency response which ever is greater Why the Filters Are Not Equal You may have noticed the recommended setting proce dure does not advise setting the Low Pass Filter and High Pass Filter Out to the same frequency Between 20Hz and 100Hz as the subwoofers output decreases the lo...

Страница 13: ...p 2 for each additional subwoofer 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 described 2 Adjust the control settings of each additional subwoofer Use the method used to adjust the first subwoofer Note While the settings of each subwoofer should be similar ...

Страница 14: ...ower 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 to the subwoofer If you remove your subwoofer from the country of original sale be certain that AC power supplied in any subsequent location is suitable before connecting and operating the subwoofer Subst...

Страница 15: ... three inches of open space between the cabinet and the front of the subwoofer see figure 14 Ask Your Dealer Your MartinLogan dealer can suggest many options for optimal subwoofer placement They also have many tools at their disposal such as experience familiarity with the associated equipment and even sound analysis equip ment which may make the task of determining optimal subwoofer placement eas...

Страница 16: ...ves that are experienced Resonant Surfaces and Objects All of the surfaces and objects in your room are subject to the frequencies gen erated by your system Much like an instrument they will vibrate and carry on in syncopation with the music and may contribute in a negative way to the sound Ringing boominess and even brightness can occur simply because surfaces and objects are singing along with y...

Страница 17: ...The following list and descriptions will give you only a brief outline of the responsibilities and demands placed on each speaker Front Left and Front Right If these speakers will be the same two used for your stereo playback they should be of very high quality and able to play loudly over 102 dB and reproduce bass below 80 Hz Center Channel This is the most important speaker in a home theater sys...

Страница 18: ...lt A reduction in distortion for the purest possible low frequency reproduction The Grotto i incorporates a proprietary switching ampli fier that allows for an incredible amount of woofer control resulting in tighter better defined bass and while keeping distortion at the lowest possible levels 25Hz Level Control The Grotto i 25Hz Level controls allows custom sound tailoring capabilities found in ...

Страница 19: ...m 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 connections Check all interconnecting cables Make sure the level control is not turned down Turn off and unplug the Grotto i and check the fuse near the AC power cord receptacle on the back If the fuse...

Страница 20: ...Dimensional Drawings Plan View Top Front Elevation Back Elevation 20 Dimensional Drawings Side Elevation ...

Страница 21: ...f 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 Marti...

Страница 22: ... 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 caused by some type of mechanical interference such as a cabinet edge grill frame or other similar object Diaphragm A thin flexible membrane or cone that vibrates in response to electrical signals t...

Страница 23: ... 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 ohms Resistor A device used in a circuit to provide resistance Resonance The effect produced when the natural vibra tion frequency of a body is greatly amplified by reinforcing vibrations at the same ...

Страница 24: ...speakers outside of the country of original sale voltage requirements vary by country Improper voltage can cause damage that will be potentially expensive to repair The Grotto i is shipped to authorized MartinLogan distributors with the correct power supply for use in the country of intended sale A list of authorized distributors can be accessed at www martinlogan com or by emailing info martinlog...

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