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Gotham 

v2

Page 12

max

Front Control Panel

The labeled Figure below depicts the front control panel of a 

Gotham v2

 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)

page 16

e.l.f. trim (dB)

page 17

phase (deg.)

page 17

Polarity

page 17

calibration mic.

page 14

Summary of Contents for gotham v2

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

Page 2: ...ld be situated away from heat sources 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 s...

Page 3: ...The subwoofer should be serviced by qualified service personnel when a the power supply cord or plug has been damaged b objects have fallen or liquid has been spilled into the subwoofer c the subwoofe...

Page 4: ...amplifier and signal processing technologies specifically aimed at delivering exceptional low frequency performance Your Gotham v2 combines these core disciplines within a compact beautifully crafted...

Page 5: ...ted to take full advantage of each driver s full excursion envelope Compared to their predecessors Gotham v2 s have been improved with all new digital signal processing and a 20 increase in amplifier...

Page 6: ...SO MAY RESULT IN PRODUCT DAMAGE AND OR INJURY WARNING FAILURE TO HANDLE A GOTHAM v2 CORRECTLY DURING UNPACKING AND PLACEMENT CAN RESULT IN EXPENSIVE DAMAGE WHICH IS NOT COVERED UNDER WARRANTY IMPORTA...

Page 7: ...m a corner or wall the room modes are excited less which can alter the sound at your listening seat Be sure to experiment with both your listening seat position and subwoofer position to find the best...

Page 8: ...O T H E R MORE INTENSE SMOOTHER SMOOTHER S M O O T H E R COMPROMISED SEATING POSITIONS Results in weaker uneven bass performance BEST SEATING POSITIONS Most accurate bass performance COMPROMISED SEAT...

Page 9: ...room 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 res...

Page 10: ...rge 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 subwoof...

Page 11: ...split foam insert and place in the carton 12 Tilt the subwoofer in the opposite direction towards its silver heatsink to remove the remaining split foam insert and place in the carton 13 Remove the p...

Page 12: ...s the front control panel of a Gotham v2 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 page 16 e l f t...

Page 13: ...nnectors The labeled Figure below depicts the rear panel of a Gotham v2 subwoofer Balanced Inputs page 18 Unbalanced Inputs page 19 IEC Style AC Connector page 21 Input Mode Switches page 20 Fuse page...

Page 14: ...igh or if there is significant noise on the input cable the Gotham v2 may not turn off as desired If this happens remove the Y cable adaptor or look for the noise source in the upstream components Dig...

Page 15: ...happen simply wait for the Demo sequence to end and try again Calibrate Button During the D A R O test sequence the Calibrate button s green LED will blink quickly to alert the user to two special co...

Page 16: ...Gotham v2 s built in low pass filter Off defeats the low pass filter completely removing this circuit from the signal path 12 dB sets the roll off slope of the low pass filter to a 12 dB per octave s...

Page 17: ...te it compliments the operation of the Phase control and cannot be replaced by it When placing your Gotham v2 in the room experiment with the Polarity switch before adjusting the Phase control Either...

Page 18: ...nd right input jacks are provided for systems without a dedicated mono subwoofer connection This typically applies to two channel audio equipment Appropriate balanced cables are available from your JL...

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 eq...

Page 20: ...ection any further If your installation incorporates two or more Gotham v2s you will designate one Gotham v2 as the Master and all others in the system as Slave subwoofers via the Master Slave switch...

Page 21: ...in Slave mode the Output to Slave signal is an exact buffered replica of the balanced input signal making this method of signal distribution preferable to using Y adapters or splitters Use only shield...

Page 22: ...RCA 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...

Page 23: ...we highly recommend that you use them to connect to the Gotham v2 designated as the master In the connection diagram at left balanced connections are shown as solid lines unbalanced connections are sh...

Page 24: ...tive crossover shown in the diagram Two connection types are available for connecting the Gotham v2 to your two channel audio system balanced XLR or 1 4 inch TRS connector and unbalanced RCA type conn...

Page 25: ...he diagram Two connection types are available for connecting the Gotham v2s to your two channel audio system balanced XLR or 1 4 inch TRS connector and unbalanced RCA type connector Balanced connectio...

Page 26: ...Distance In the 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...

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: ...sections 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 li...

Page 29: ...e and temporarily place the mic in the primary listening seat If you have a microphone stand you can place the microphone at head height and position in the primary listening seat d On the Gotham v2 s...

Page 30: ...am v2 or two in a small to medium sized home theater Since smaller enclosed spaces help to boost the level of the lowest bass frequencies smaller theaters can be overwhelmed by the strong low bass out...

Page 31: ...torms This will prevent any possible damage from voltage spikes due to lightning In these conditions it s a good idea to unplug all of your audio video components If you are going to be away from home...

Page 32: ...ical Support for assistance The bass level has changed 1 Make sure your level settings on the Gotham v2 and in your receiver preamp processor have not changed 2 If you are using the Gotham v2 s Master...

Page 33: ...r panel next to the AC cord receptacle is the main fuse holder s cover This small spring loaded cap may be removed allowing access to inspect or replace the main power fuse If your AC outlet has power...

Page 34: ...2 dB to 3 dB at 24 Hz Digital Automatic Room Optimization D A R O Automatic 18 band digital equalizer with included laboratory grade calibration microphone defeatable H W D F R O N T B O T T O M T O P...

Page 35: ...ot 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 sta...

Page 36: ...demark of JL Audio Inc Due to continuous product development all specifications are subject to change without notice Printed in USA 2015 JL Audio Inc U S PATENTS 5 734 734 5 949 898 6 118 884 6 229 90...

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