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WARRANTIES: 

 

 
Bob Carver LLC warrants that all equipment manufactured by us to be free from defects 
in materials and workmanship for seven (7) years (vacuum tubes – one (1) year).  
 
This warranty shall not apply: 
 
(a)  to equipment not manufactured by Bob Carver LLC  
 
(b)  to  equipment  which  has  been  repaired  or  altered  by  someone  other  than  Bob 
 

Carver LLC 

 
(c)  to  equipment  which  shall  have  been  subjected  to  negligence,  accident,  misuse, 
 

abuse,  or  damage  by  circumstances  beyond  Bob  Carver  LLC’s  control,  or  due  to 

 

improper operation, maintenance or  storage, or to other than normal use or service.  

 

 

The foregoing warranties do not cover reimbursement for labor, transportation, removal, 
installation,  replacement  cartons  or  other  expenses  which  may  be  incurred  by  the 
dealer in connection with repair or replacement.  

If you have any questions concerning the operation or maintenance of this equipment, please contact: 
 

Customer Service 
 
Bob Carver LLC 
157 Venture Ct, Suite 12 
Lexington, KY 40511 
 
Phone:  (859) 258-9794 
Fax:  (859) 258-2150 
 
info@bobcarver.com 

 

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Summary of Contents for Black Magic 20

Page 1: ...Black Magic 20 20 Watt Stereo Amplifier OWNERS MANUAL...

Page 2: ...tage to be delivered to the loudspeaker at very low fre quencies providing an exceptional and satisfying low end response SAFE OPERATING CONDITIONS Before connecting the amplifier up please read the f...

Page 3: ...ause the DC restorer circuit eliminates that need Please note we have selected the M version of the EL84 because it has a higher plate volt age rating than the non M tubes made by many manufacturers T...

Page 4: ...for each channel The black bind ing posts are common red posts carry the audio output signals This amplifier is officially rated for 4 ohms minimum To connect the speaker first check the impedance of...

Page 5: ...e feet to do their job by keeping the bottom raised al lowing unimpeded airflow NEW AMPLIFIER SMELL We burn in these amplifier in for 72 hours using a 1 KHZ sine wave driving 4 ohm loads But like a br...

Page 6: ...eferenced into 20 watts Hum 100dB Frequency Response 8 Hz to 40kHz 3dB Full Power Bandwidth 26 Hz to 43 kHz without filters Distortion Less than 0 5 Output Transformer Interleaved windings super wideb...

Page 7: ...lifier Water Do not use the amplifier near water Cleaning Unplug the amplifier from the AC outlet before cleaning Use only a dry cloth to clean Object and Liquid Entry Never insert objects of any kind...

Page 8: ...CAUTION Changes or modifications not expressly approved by BOB CARVER LLC will void the manufacturer s warranty Page 7...

Page 9: ...use abuse or damage by circumstances beyond Bob Carver LLC s control or due to improper operation maintenance or storage or to other than normal use or service The foregoing warranties do not cover re...

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