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The following suggestions are intended as guidelines to help you decide which locations 

to try for your X-Ref 12 DSP Powered Subwoofer(s):
•  Corner placement usually produces the most bass, but sometimes produces 

poorly defined or boomy bass. A corner location that produces a lot of clean 

bass is fine; if, however, the bass is boomy or resonant then you should try another 

location.

•  Try various locations along side and rear walls. It’s often better to place a 

subwoofer several feet away from the corner along one wall; any location anywhere 

along a wall may be a good spot to locate your X-Ref 12. 

•  Avoid locations where your X-Ref 12 will be exposed to direct sunlight or 

water (and don’t sit plants or other electronic equipment on top of it). 

•  A subwoofer should not be heard as a distinct source of sound. A properly 

configured subwoofer should add a solid “foundation” to your music; it should 

not, however, be discernible as a separate source of sound. Even though low 

bass is non-directional, certain locations may cause the subwoofer to “stand out” 

acoustically and should be avoided. 

•  Multiple subwoofers should sometimes be placed at different types of 

locations.  For example, if you are adding a second X-Ref 10 to an existing one 

located in a corner, it’s may be a good idea to try locating the second one along 

a wall. Certain locations sometimes accentuate certain frequencies; by varying 

locations you average out the variations and get a smoother overall response. 

At Emotiva we prefer symmetrical subwoofer placement in front locations if it’s 

practical; we believe that your ears are sensitive to pressure differentials that, 

although not audible, may nonetheless affect the integrity of the front sound stage.

•  Avoid placing subwoofers within several feet of a turntable or other sensitive 

audio device. Even if you use isolation feet or an isolation base, low frequency 

vibrations travel directly through the air, and may be coupled to a turntable arm 

or platter. You may also find that your turntable is more immune to vibration with 

(or without) the dust cover in place. The result of acoustic feedback may be actual 

howling noises or record skips or a more subtle muddying of the bass on some 

musical passages. Since a lot of audio equipment is at least somewhat sensitive 

to vibration, you may get better results by locating your subwoofer along a side or 

back wall rather than by placing it directly behind or beside your equipment rack.

•  Sound becomes less directional as the frequency gets lower. The sound 

coming from a subwoofer configured to cross over at 80 Hz (the THX™ standard) is 

almost totally non-localized, but localization increases at higher frequencies. If you 

are noticing sound localization from a subwoofer configured to a frequency above 

100 Hz, try choosing a lower crossover frequency.

Summary of Contents for X-Ref 10

Page 1: ...DSP Powered Subwoofer User Manual...

Page 2: ......

Page 3: ...QUIDS SUCH AS VASES ARE PLACED ON IT DOING SO MAY RESULT IN DAMAGE TO THE X REF SUBWOOFER AND THE RISK OF ELECTRIC SHOCK TO THE USER WHICH MAY RESULT IN BODILY INJURY OR DEATH CAUTION TO REDUCE THE RI...

Page 4: ...eat the safety purpose of a grounding or polarized plug by removing ground pins or using unsafe adapters A polarized plug has two blades one wider than the other A grounding type plug has a third grou...

Page 5: ...wered Subwoofer 6 Quick Start 7 About Subwoofers 8 Setting Up Your X Ref 12 9 Connections 10 Subwoofer Placement 11 System Configuration 14 Subwoofer Configuration and Adjustment 17 Operation 19 Care...

Page 6: ...decor of your home theater or music room However the X Ref 12 isn t all muscle and good looks The advanced DSP Management System with its convenient push to engage rotary encoder and easy to read bac...

Page 7: ...possible and you might find some interesting and helpful tips and information If you re new to the subject then we encourage you to take the suggestions we offer as a starting point and experiment unt...

Page 8: ...a powerful 12 long throw woofer with a die cast frame massive motor assembly woven tinsel leads proprietary para aramid blended fiber cone and heavy duty Butyl rubber half roll surround and a sealed c...

Page 9: ...urround and avoid resting your X Ref 12 on its front top or back while unpacking it PLEASE NOTE THE POWER CORD AND SPIKED FEET ARE INCLUDED IN THE LOWER PACKAGING MATERIAL DO NOT DISCARD PACKAGING MAT...

Page 10: ...Subwoofer Back lit LCD status display High power 12 inch long throw woofer Rotary encoder Balanced output XLR Unbalanced stereo inputs RCA Power and Standby indicator AC Power switch IEC power cable...

Page 11: ...ounded AC electrical outlet If you use a different power cord or extension cord use only a three prong grounded type with sufficient current rating Connect your X Ref 12 to the subwoofer or LFE output...

Page 12: ...for both channels in a stereo system or all channels in a multi channel system In principle it should be simple to design a subwoofer that can do a great job of producing the narrow range of frequenc...

Page 13: ...placement choices The advanced DSP Management System makes it simple to configure the X Ref 12 to be a perfect match for virtually any room While the DSP Management System also offers precise control...

Page 14: ...theater pre processor connected to the balanced input the Movie EQ Trigger input can activate the bass boost when the home theater pre processor is turned on If you have a pre processor like Emotiva...

Page 15: ...r nor to locate two subwoofers in symmetrical locations The locations that work best in a given room depend on the size shape and construction of the room as well as on room surface treatments like ca...

Page 16: ...s or explosions A recording of pink noise works well for some people although test tones intended for use with a meter are usually not very useful when doing things by ear Remember that the ideal loca...

Page 17: ...one along a wall Certain locations sometimes accentuate certain frequencies by varying locations you average out the variations and get a smoother overall response At Emotiva we prefer symmetrical su...

Page 18: ...ly not use them since the X Ref s advanced parametric equalizer controls make adjustment easier and do a better job While it is possible to use source component and subwoofer equalization controls sim...

Page 19: ...nnected to one input on the X Ref and a home theater pre processor connected to the other input the Movie EQ Trigger input is typically configured to activate the bass boost when the home theater pre...

Page 20: ...commended by the manufacturer of your speakers this is often 80 Hz for satellite speakers If you are using full range speakers then experiment with crossover points at or below 80 Hz until you achieve...

Page 21: ...tch the phase of the X Ref 12 with your main speakers and any other subwoofers you have installed to prevent cancellation effects in the range of frequencies produced by both Adjust the Phase setting...

Page 22: ...Page 18 Emotiva X Ref 12 DSP Powered Subwoofer Menu...

Page 23: ...a value or enter a command You will probably find it easiest to rotate the encoder using your thumb and one finger positioned on the top surface near two opposite sides you can press the center or th...

Page 24: ...fle Cleaning the grill If necessary remove the grill and gently clean it with a vacuum cleaner Cleaning the woofer If something gets spattered on the cone or surround of the woofer driver it may be ca...

Page 25: ...ne 1 8 trigger input for Movie EQ Output One professional balanced XLR Nominal input sensitivity Balanced input 1 V Unbalanced inputs 0 5 V Phase adjustment 0 315 degrees in 45 degree steps Low pass c...

Page 26: ...d the blue fluorescent display on top of the X Ref 12 should light if you briefly press the button in the center of the rotary encoder the black circle next to the display If not verify that the Power...

Page 27: ...configuration or program material Verify that you have power If you have power and signal but still have no output then please contact Emotiva Technical Support Problem Excessive hum or noise Check yo...

Page 28: ...original factory serial number has been removed defaced or replaced in any way Damage to or loss of any software or data residing on the product is not covered When providing repair or replacement ser...

Page 29: ...Parkway Court Franklin TN 37064 Note To return items purchased through Emotiva for repair warranty work or refund you MUST call us at 1 877 EMO TECH to obtain a Returned Merchandise Authorization RMA...

Page 30: ...ially noisy environment We do not however recommend or endorse fancy boutique audiophile cables Emotiva Audio offers both balanced and unbalanced cables that combine solid engineering premium build qu...

Page 31: ...Page 27 Notes...

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