JL Audio Fathom f212 Owner'S Manual Download Page 1 | Manualshive

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212

Owner’s Manual

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Summary of Contents for Fathom f212

Page 1: ...f212 Owner s Manual...

Page 2: ...rces such as radiators heat registers stoves fireplaces or other devices which produce heat Do not place candles on top of or near the subwoofer 10 Power sources The subwoofer should only be connected...

Page 3: ...fallen or liquid has been spilled into the subwoofer c the subwoofer has been exposed to rain d the subwoofer does not appear to operate normally or exhibits a marked change in performance e the subwo...

Page 4: ...gnal processing technologies specifically aimed at delivering exceptional low frequency performance Your Fathom combines these core disciplines within a compact beautifully crafted package to deliver...

Page 5: ...patented feedback technology were created The advanced amplifier design in the F212 is capable of unclipped output voltages equivalent to 3000 watts of RMS power when referenced to the nominal loudsp...

Page 6: ...he strongest output with the fewest dips When the subwoofer is pulled away from a corner or wall the room modes are excited less which can alter the sound at your listening seat Be sure to experiment...

Page 7: ...005 3 4 0 0 5 3 0 130 4 4 5 104 5 0 4 3FTVMUT JO XFBLFS VOFWFO CBTT QFSGPSNBODF 45 4 5 104 5 0 4 PTU BDDVSBUF CBTT QFSGPSNBODF 0 130 4 4 5 104 5 0 4 PSF JOUFOTF CVU MFTT BDDVSBUF CBTT QFSGPSNBODF 8034...

Page 8: ...spirited operation we do recommend that adequate heat vents are included in any custom cabinet which encloses the Fathom Pairs of 3 inch 7 5 cm diameter vents over the full cabinet height 8 vents tota...

Page 9: ...m at diagonally opposite corners of the room or at the center points of opposing walls as shown at right Experimentation with subwoofer and listener placement is recommended to achieve the best result...

Page 10: ...listening area can be achieved using four subwoofers placing one at the midpoint of each of the four walls although using two or three subwoofers can be almost as good Experimentation with subwoofer a...

Page 11: ...bag and place in the carton 11 Tilt the subwoofer forward toward its grille to remove the rear split foam insert first Then tilt the subwoofer in the opposite direction towards its amplifier panel to...

Page 12: ...low depicts the front control panel of a Fathom f212 subwoofer A R O page 14 15 Power page 14 Input Mode page 15 Level Mode page 15 Master Level page 16 Lights page 16 LP Filter page 16 LP freq Hz pag...

Page 13: ...and Connectors The labeled Figure below depicts the rear panel of a Fathom f212 subwoofer Balanced Inputs page 18 Unbalanced Inputs page 19 IEC Style AC Connector page 21 Output to Slave Connector pa...

Page 14: ...the input cable the Fathom may not turn off as desired If this happens remove the Y cable adaptor or look for the noise source in the upstream components Automatic Room Optimization A R O A powerful...

Page 15: ...ill not start unless the supplied JL Audio test microphone is plugged into the Fathom subwoofer Once the calibration routine is complete the green light in the center of the Calibrate button will ligh...

Page 16: ...gnal path 12 dB sets the roll off slope of the low pass filter to a 12 dB per octave slope Butterworth alignment 24 dB sets the roll off slope of the low pass filter to a 24 dB per octave slope Linkwi...

Page 17: ...h is immediate it compliments the operation of the Phase control and cannot be replaced by it When placing your Fathom in the room experiment with the Polarity switch before adjusting the Phase contro...

Page 18: ...rocessors Separate left and right input jacks are provided for systems without a dedicated mono subwoofer connection This typically applies to two channel audio equipment Appropriate balanced cables a...

Page 19: ...receivers and preamplifier processors Separate left and right RCA type input jacks are provided for systems without a dedicated mono subwoofer connection This typically applies to two channel audio e...

Page 20: ...his section any further If your installation incorporates two or more Fathoms you will designate one Fathom as the Master and all others in the system as Slave subwoofers via the Master Slave switch o...

Page 21: ...lave signal carries any signal processing selected on the Master Fathom including the Master Level setting and A R O processing to further Fathoms operating in Slave mode From Fathoms operating in Sla...

Page 22: ...A type connector Balanced connections provide superior noise rejection and ensure proper grounding between components If your receiver or processor has balanced outputs we highly recommend that you us...

Page 23: ...or has balanced outputs we highly recommend that you use them to connect to the Fathom designated as the master In the connection diagram at left balanced connections are shown as solid lines unbalanc...

Page 24: ...mfortable running your main speakers full range you can split your preamplifier s output signals using appropriate Y connectors in place of the active crossover shown in the diagram Two connection typ...

Page 25: ...wo connection types are available for connecting the Fathoms to your two channel audio system balanced XLR or 1 4 inch TRS connector and unbalanced RCA type connector Balanced connections provide supe...

Page 26: ...speaker setup menu properly set all speaker distances to the primary listening seat including the subwoofer s distance Use a tape measure to determine these distances time coherence is important If mu...

Page 27: ...connected directly to your receiver or preamp processor is indicating Master on its Input Mode lights and that all other units are indicating Slave on their Input Mode lights If not you will need to a...

Page 28: ...on pages 15 16 of this manual 2 Polarity and Phase Adjustment It is often helpful to have a second person operating these controls so that you can easily hear the changes from the primary listening s...

Page 29: ...emove the calibration microphone from its protective pouch and connect its cable to the mini XLR jack on the Fathom s front control panel NOTE A R O Calibration is only possible when the included JL A...

Page 30: ...trols to their previously determined settings before the A R O calibration run and re tweak the subwoofer output level as described in Step 1 Level Setting on page 28 Since the A R O will smooth the l...

Page 31: ...til these artifacts disappear Will my electric bill be high if I leave the Fathom in Auto mode When in Auto mode the Fathom amplifier is only powered up when a significant signal is detected on the in...

Page 32: ...y automotive wax and a microfiber cloth both available wherever automotive detailing supplies are sold We recommend Meguiar s NXT Tech Wax and Meguiar s Microfiber Detailing cloths Never use a polish...

Page 33: ...ify the position of the ELF Trim knob Hums or other unusual noises from your Fathom 1 See Input Mode discussion on page 20 of this manual especially if any upstream components cables etc have recently...

Page 34: ...Page 34 Fathom f212...

Page 35: ...allow limitations on implied warranties therefore these exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state...

Page 36: ...Signal Sensing Light Modes Off On or Dim Low Pass Filter Mode Off 12 dB per octave or 24 dB per octave Low Pass Filter Cutoff Frequency Variable from 30 Hz 130 Hz Polarity 0 or 180 degrees Phase Varia...

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