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What Will We Pay For?  

We will pay for all labor and material expenses for items 
covered by the warranty. Payment of shipping charges is 
discussed in the next section of this warranty 

How You Can Get Service?  

In  the  event  that  the  owner  needs  to  return  the  unit  to 
Margules Audio for service or repair of a possible defect, 
he must do the following: 

  Contact Margules Audio at (525) 514 7448 in 

Mexico or at 707-5811830 in USA and ask for 
technical support.  

  Or  visit  Margules  Audio  at  the  address  in  the  end 

of  this  manual  with  your  product.  If  you  want  to 
send it the cost is on your account. 

Limitation of Implied Warranties  

All 

implied 

warranties, 

including 

warranties 

of 

merchantability  and  fitness  for  particular  purchase,  are 
limited in duration to the length of this warranty. 

Exclusion of Damages  

Margules  Audio’s  liability  for  any  defective  product  is 
limited  to  repair  or  replacement  of  the  product  at 
Margules  Audio’s  option.  Margules  Audio  shall  not  be 
liable  for  damage  to  other  products  caused  by  any 
defects  in  Margules  Audio  products,  damages  based 

upon inconvenience or loss of use of the product, or any 
other  damages,  whether  incidental,  consequential,  or 
otherwise.  

How State Law Relates to the Warranty  

Some  states  do  not  allow  limitations  on  how  long  an 
implied  warranty  lasts  and/or  do  not  allow  the  exclusion 
or  limitation  of  incidental  or  consequential  damages,  so 
the above limitations or 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. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for U280SC

Page 1: ...Amplifier U280 SC 25th anniversary...

Page 2: ...ndry tub or in a damp environment like a basement or outside in the rain 5 WALL OR CEILING MOUNTING Mount the unit to a wall or ceiling only in the manner recommended by the manufacturer 6 OBJECT AND...

Page 3: ...lightning and power line surge damage 13 POWER LINES Do not locate an outside antenna system in the vicinity of overhead power lines or other electric light or power circuits When installing an outsid...

Page 4: ...TEM INSTALLER This reminder is provided to call the CATV system installer s attention to article 820 40 of the NEC ANSI NFPA 70 which provides guidelines for proper grounding and in particular specifi...

Page 5: ...ode provides information regarding proper grounding of the mast and supporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna dis...

Page 6: ...the aerospace industry assuring long trouble free operation The New U280 SC 25th Anniversary Stereo Tube Amplifier includes a new and improved differential output as well further reducing the THD and...

Page 7: ...SETUP IMPORTANT The amplifier should be unplugged from the wall outlet First choose the proper output impedance accordingly to your speaker both channels should be the same 1 2 ohms from 1 to 2 ohms l...

Page 8: ...change the tubes just unplug the A C power line cord pull out the old ones and insert the new tubes the active bias will balance them We recommend matched pair output tubes but this is not indispensa...

Page 9: ...an use a soft lightly humid cloth WARNING Never take the tubes out while the amplifier is plugged It is important to substitute the tubes with the correct numbers Troubleshooting Doesn t turn on Look...

Page 10: ...fields near the signal ones Because you have a servo controlled bias and the BEFS always use the best interconnections cables AC power line and loudspeakers cables that you can get We recommend havin...

Page 11: ...ed with the product c Repair or attempted repair by anyone not authorized by Margules Audio to repair the product d Any shipment of the product claims must be presented to the carrier e Any cause othe...

Page 12: ...ntability and fitness for particular purchase are limited in duration to the length of this warranty Exclusion of Damages Margules Audio s liability for any defective product is limited to repair or r...

Page 13: ...525 514 7448 Toll free 1 888 538 8605 FAX 525 533 4654 Email info margules com mx MARGULES USA 820 Elm Drive div PetalumaCA 94952 Phone number 707 5811830 Collect USA Canada 1 888 538 8605 Fax number...

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