Requisite Audio Engineering L2M MKIII M/S VERSION Operator'S Manual Download Page 19

WARRANTY

For a period of 2 years after original purchase, Requisite Audio Engineering will, free of 
charge, repair this product if it fails due to defective materials or workmanship.  This 
limited warranty is subject to the following limitations:

• Units that are discovered to have been opened or tampered with will not be covered 

by this warranty.  We strongly discourage opening the chassis due to the risk of severe 
electrical shock!

• Defects that are, in the sole judgement of Requisite Audio Engineering, the result of 

accident, misuse, abuse, neglect, mishandling, misapplication, faulty installation, un-
authorized repair, modification, or act of God will not be covered by this warranty.

• In the absence of receipt of original purchase, this warranty is valid for 2 years from 

date of manufacture as determined from the units serial number and the records of 
Requisite Audio Engineering.

• There are no expressed warranties except as listed above.
• TUBES, OPTOS and LIGHT BULBS are not covered by this warranty, but receive a 90-

day warranty.

• REQUISITE AUDIO SHALL NOT BE LIABLE FOR PROPERTY DAMAGE OR ANY 

OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGE WHATSOEVER WHICH 
MAY RESULT FROM THE FAILURE OF THIS PRODUCT OR ARISING OUT OF THE 
BREACH OF THIS WARRANTY.  Any and all warranties of merchantability and fit-
ness implied by law are limited to the duration of the expressed warranty.  

If a problem develops with this product DO NOT OPEN THE UNIT or attempt repair-
ing it yourself.  Opening this unit invalidates your warranty and will expose you to risk 
of very severe electrical shock!

REFER ALL REPAIR TO REQUISITE AUDIO.  Do not return the unit without authoriza-
tion and instructions from us.  Units must be shipped PRE-PAID both directions.
REQUISITE AUDIO cannot be responsible for damage due to shipping or improper 
packaging.  Save the original packaging.

This warranty gives you specific legal rights and you may also have other rights which 
vary from state to state.

T H E   L 2 M   M K I I I     M / S   V E R S I O N

R e q u i s i t e   A u d i o   E n g i n e e r i n g

L 2 M   M k I I I

15

Summary of Contents for L2M MKIII M/S VERSION

Page 1: ...2M MKIII M S VERSION Optical Leveling Amplifier By Requisite Audio Engineering OPERATOR S MANUAL 2175 Goodyear Ave Suite 110 San BuenaVentura California 93003 telephone 818 437 0779 www requisiteAudio...

Page 2: ...ottom rows 4 IN BYPASS 4 IN BYPASS OPERATIONAL NOTE 4 OUTPUT LEVEL 4 OUTPUT LEVEL OPERATIONAL NOTE 4 OUTPUT LEVEL CALIBRATION PROCEDURE 4 FRONT PANEL CONTROLS continued 5 LIMITER FEEDBACK 5 LIMITER FE...

Page 3: ...NT PANEL CALIBRATION POINTS 9 ZERO ADJ 9 ZERO ADJUST OPERATIONAL NOTE 9 GR TRACK 9 GR TRACK CALIBRATION PROCEDURE 9 FRONT PANEL CALIBRATION POINTS continued 10 VU ADJ 10 VU ADJ CALIBRATION PROCEDURE 1...

Page 4: ...TPUTS 13 LIMITER LINK 13 TUBE CHANNEL 13 TUBE PLACEMENT and FUNCTION left to right 13 AUDIO INPUTS 13 OUTBOARD POWER SUPPLIES 14 POWER SUPPLIES 14 POWER ON 14 POWER CABLE 14 VOLTAGE SELECT 14 FUSE 14...

Page 5: ...sents what a truly refined optical limiter can be Among the more notable performance features of the L2M are it s sonic excellence ver satility and stable frequency response while limiting program mat...

Page 6: ...l shipment Here s what to do if the shipment has been damaged Leave the product its packing materials and box as is Notify the carrier s local office and request an immediate inspection of the shipmen...

Page 7: ...MENTAL CONSIDERATIONS This and all electronic equipment require adequate ventilation and a dry environment for safe operation and long component life If proper ventilation from behind the unit is prov...

Page 8: ...hange in volume This can be confirmed by injecting a 1 kHz tone and ob serving an outboard DMM or other suitable meter The L2M is shipped with UNITY calibrated to within 1dB Each channel is calibrated...

Page 9: ...on the output level of the audio which is why it is done in calibrated 1dB increments on the L2M Because of this proper setting of make up gain is the combined settings for OUTPUT LEVEL and LIMITER F...

Page 10: ...ed smoothing of mid and high frequencies above 1 kHz and a tight and punchy bass response LIMITER RESPONSE OPERATIONAL NOTE For uniform limiter initiation and response in MONO or LINK mode both channe...

Page 11: ...right is right L R At the 12 o clock position both left and right are in center mono At it s fully clockwise position the image is flipped left is on the right and right is on the left R L The side co...

Page 12: ...ame ters In other words when processing stereo material be sure to adjust the controls of both channels to identical settings In link mode a single PEAK REDUCTION knob can initiate gain reduction in b...

Page 13: ...ak reduction activity Set PEAK REDUCTION LIMITER RESPONSE fully counterclockwise Set OUTPUT LEVEL LIMITER FEEDBACK STEREO LEVEL RIDE to UNITY Set RATIO to 3 1 and IN BYPASS to IN Determine that ZERO A...

Page 14: ...across pins 2 3 of the OUTPUT XLR Set IN BYPASS to IN Select 10 on the METER SELECT and observe if the VU METER reads 0dB Adjust as necessary 4dBu is factory set to follow the 10dBu calibration After...

Page 15: ...REDUCTION Increase PEAK REDUCTION both channels until the VU METER drops to 4dB on both channels Using METER SELECT set to GR to see if both meters read 5dBu The additional 1dB is to compensate for me...

Page 16: ...T and observe that both VU METERs read 0dB Select MONO on PK REDUCTION meter mode select Set PEAK REDUCTION both channels to the 12 o clock position Raise the STEREO ADJ trimmer on each channel until...

Page 17: ...ng phase Pin 3 negative going phase LIMITER LINK Top for Channel 1 Bottom for Channel 2 Both become linked to each other when PK REDUC TION mode switch is set to LINK TUBE CHANNEL Protective housing f...

Page 18: ...cable to the jack on the L2M mainframe If powering only one L2M unit with a supply having extra cables be sure the unused cable s is rolled up and fastened to the supply with a cover over the unused e...

Page 19: ...ies except as listed above TUBES OPTOS and LIGHT BULBS are not covered by this warranty but receive a 90 day warranty REQUISITE AUDIO SHALL NOT BE LIABLE FOR PROPERTY DAMAGE OR ANY OTHER INCIDENTAL OR...

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