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Fathom SA

-600W

SYSTEM CONNECTION DIAGRAM 4:

Two SA-600Ws to  

Two-Channel Audio System 

for Mono Bass

The SA-600W is great for use in two-

channel audio systems due to its onboard 

high-pass crossover. Mono bass in your 

stereo system allows greater flexibility in 

subwoofer placement.

Using RCA-type cables, connect the 

Left and Right stereo outputs from your 

preamp to the Left and Right “LINE 

INPUTS” of BOTH SA-600Ws. This feeds 

a full-range stereo signal into BOTH 

amplifiers.

Next, connect the Left and Right 

“HIGH PASS OUTPUTS” from ONE  SA-

600W (the easiest one to physically access) 

to the Left and Right inputs of your 

satellites’ stereo power amplifier. This will 

feed a high-passed filtered signal (bass 

removed) to the Left and Right speakers 

once the SA-600W’s internal crossover 

(XO) is turned ON. Removing the bass 

burden from your satellites will greatly 

enhance their performance. See the XO 

discussion on page 21 for additional info.

Now that your equipment is 

connected, refer to pages 28-31 and follow 

the directions for RECOMMENDED 

STEREO SYSTEM SETUP 

PROCEDURES. 

WARNING

WARNING! TURN OFF THE SA-600W(S) AND ALL OTHER EQUIPMENT IN 

THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS!  

L

R

OUTPUTS

SA-600W REAR CONNECTIONS

PRE-AMPLIFIER

SA-600W REAR CONNECTIONS

SATELLITE AMPLIFIER

Y-ADAPTOR

R

L

INPUTS

Summary of Contents for Fathom SA-600W

Page 1: ...SA 600W Subwoofer Amplifier Owner s Manual...

Page 2: ...not cover the amplifier heatsink with tablecloths curtains etc 9 Heat and Flames The amplifier should be situated away from heat sources such as radiators heat registers stoves fireplaces or other dev...

Page 3: ...r 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 amplifier c the amplifier has been e...

Page 4: ...ackage Contents 5 Placing your Subwoofer in Your Listening Room 6 10 Front Control Panel Layout 11 Rear Connector Panel Layout 11 Front Panel Controls in Detail 12 13 Connecting your SA 600W s 14 17 U...

Page 5: ...he SA 600W s subwoofer outputs and auxiliary outputs E L F Extreme Low Frequency trim applies equalizer cut or boost at 25 hertz 12 to 3 dB to tailor a subwoofer s response for a particular room Innov...

Page 6: ...s walls Just as your listening seat can be in a peak or dip region so can your subwoofer When placed in a room corner a subwoofer maximally excites the room s mode structure creating the strongest ou...

Page 7: ...R COMPROMISED SEATING POSITIONS Results in weaker uneven bass performance BEST SEATING POSITIONS Most accurate bass performance COMPROMISED SEATING POSITIONS More intense but less accurate bass perfor...

Page 8: ...he 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...

Page 9: ...using two or three subwoofers can be almost as good Experimentation with subwoofer and listener placement is recommended to achieve the best results the benefits can be substantial High resolution me...

Page 10: ...h encloses the SA 600W A pair of 3 inch 7 5 cm diameter vents near the bottom of the cabinet and near the top of the cabinet will allow cool air to circulate over the heatsinks of your SA 600W keeping...

Page 11: ...oved altered or defaced 120 V 60 Hz F 6A H 250V IEC Style AC Connector page 17 Wireless JLINK Port page 15 High Pass Outputs page 14 FUSE F U S E Warranty void if serial number is removed altered or d...

Page 12: ...the LCD Display will show In Standby Waiting for audio input The front panel LED will turn GREEN when the SA 600W powers up Note In the unlikely event that the auto Signal Sensing feature is not sens...

Page 13: ...r detailed info DFU Button Located in the small hole between the 5 Way Control Pad and the USB port the DFU button is used to activate the Device Firmware Upgrade DFU function To use connect the SA 60...

Page 14: ...es from the satellites you can create a seamless blend with your subwoofers enhancing midrange clarity and dynamics with improved overall system response This is the correct way to add a subwoofer to...

Page 15: ...nector from left to right 1 Right Channel Negative 2 Right Channel Positive 3 Left Channel Negative 4 Left Channel Positive Input Impedance 4 4 k Note It is vital to observe correct electrical polarit...

Page 16: ...n speaker speaker and are connected in parallel inside the SA 600W so you can use either output when connecting a single subwoofer A pair of removable Neutrik speakOn plugs NL2FX are supplied with the...

Page 17: ...r the spring to compress will help to locate the correct position Reconnect the AC power cord If the replacement fuse blows immediately after replacing a fuse replacement the SA 600W may require servi...

Page 18: ...al Sensing 12V ON Activates via 12V Trigger In see Power Switch on page 12 for detailed info Box EQ This feature allows you to activate a preloaded EQ curve designed to optimize the performance of a J...

Page 19: ...seful for helping the subwoofer to satellite transition through the crossover region Note The delay feature of the HIGH PASS OUTPUTS is available even if the onboard crossover XO is not used OFF Sub O...

Page 20: ...ES section of this manual on pages 28 35 for details on how to use the D A R O system The D A R O feature can be turned ON and OFF default from this screen You may also turn the D A R O feature ON and...

Page 21: ...address specific in room response problems OFF default No EQ bands are in the signal path ON Allows application of up to three EQ bands to the signal path To make adjustments use the UP and DOWN arrow...

Page 22: ...connect the mono subwoofer output to the Left or Right LINE INPUT of your SA 600W Now that your equipment is connected refer to pages 32 35 and follow the directions for RECOMMENDED HOME THEATER SETU...

Page 23: ...t the mono subwoofer output to the Left or Right LINE INPUT of the first SA 600W Connect the HIGH PASS OUTPUTS from the first SA 600W to the LINE INPUTS of the second SA 600W Subsequent SA 600Ws will...

Page 24: ...ll range stereo signal into the amp Next connect the Left and Right HIGH PASS OUTPUTS from the SA 600W to the Left and Right inputs of your satellites stereo power amplifier This will feed a high pass...

Page 25: ...siest one to physically access to the Left and Right inputs of your satellites stereo power amplifier This will feed a high passed filtered signal bass removed to the Left and Right speakers once the...

Page 26: ...the Right LINE INPUT of the other SA 600W This feeds a full range signal to EACH amplifier one amp for the Left channel and one amp for the Right channel Next connect the Left HIGH PASS OUTPUT from t...

Page 27: ...r is more convenient On receivers with A B speaker circuit selectors you can connect the SA 600W to the B outputs giving you the ability to easily switch the SA 600W s signal on and off with the recei...

Page 28: ...we assume that the SA 600W is handling bass management tasks On your Stereo Preamp Before beginning setup of your SA 600W we recommend that you set your receiver or preamp processor as follows 1 Set B...

Page 29: ...his system will measure the response of the subwoofer at your primary listening seat and apply a powerful equalizer to tame the peaks caused by room modes resulting in smoother more accurate bass perf...

Page 30: ...will overwrite the existing data 2 Level Setting GAIN Using familiar music material with deep bass content adjust the subwoofer level to blend with the other speakers using the Variable GAIN function...

Page 31: ...ol at 10 milliseconds 5 ELF Adjustment Extreme Low Frequency Trim Use the ELF control to adjust the extreme low bass extension of the SA 600W This control allows 12 dB of cut or 3 dB of boost at 25 He...

Page 32: ...of your high frequency speakers as small with a crossover point of 80 Hz This will send ALL bass to the SA 600W 2 Speaker Distance In the speaker setup menu properly set all speaker distances to the...

Page 33: ...re now ready to apply the power of JL Audio s exclusive Digital Automatic Room Optimization D A R O system This system will measure the response of the subwoofer at your primary listening seat and app...

Page 34: ...receiver or processor cannot be turned up enough to level match the SA 600W return that control to 0 Then switch the SA 600W s GAIN mode to VAR Variable With 0 as your reference point REF mode gain an...

Page 35: ...est bass frequencies smaller theaters can be overwhelmed by the strong low bass output of the subwoofer This can create a thick or bloated character in the lower bass region Turning down the ELF cuts...

Page 36: ...If the problem persists contact your dealer or JL Audio Technical Support for assistance Weak sound or poor performance when using the High Level Inputs 1 Verify the correct electrical polarity of ea...

Page 37: ...not 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 s...

Page 38: ...ystem Settings 12V OFF 12V ON Box EQ IWS 8 Other No EQ ELF Trim OFF ON dB Gain REF VAR dB Auto Room Opt OFF ON Sub Polarity 0 deg 180 deg Crossover OFF 12dB Hz 24dB Hz Delay OFF ON HP Out ms Sub Out m...

Page 39: ...ttings 12V OFF 12V ON Box EQ IWS 8 Other No EQ ELF Trim OFF ON dB Gain REF VAR dB Auto Room Opt OFF ON Sub Polarity 0 deg 180 deg Crossover OFF 12dB Hz 24dB Hz Delay OFF ON HP Out ms Sub Out ms EQ OFF...

Page 40: ...degrees Delay Variable from 0 25 ms 0 1 ms increments Sub and HP outputs E L F Trim Variable from 12 dB to 3 dB at 25 Hz 0 5 dB increments Equalizer Bands 3 Equalizer Frequency Range 20 to 160 Hz 1 Hz...

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