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Zesto Audio 2015   1 | 

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Bia 120 

Class A Stereo Power Amplifier 

Owner’s Manual 

  

Please read carefully before  

installing and operating this equipment 

  

 
 
 
 
 

Zesto Audio 

3138 Calle Estepa 

Thousand Oaks, California 91360 

805-807-1840 

www.zestoaudio.com 

george@zestoaudio.com 

  

Made in the USA 

Using US and Imported Parts 

 
 
 
  

Summary of Contents for BIA 120

Page 1: ...r Amplifier Owner s Manual Please read carefully before installing and operating this equipment Zesto Audio 3138 Calle Estepa Thousand Oaks California 91360 805 807 1840 www zestoaudio com george zest...

Page 2: ...listening experience for you I am proud to put my name on it and honored to share this with you Wishing you many happy years of listening Sincerely George Counnas President of Zesto Audio FYI Zesto i...

Page 3: ...place the unit on an unstable cart stand tripod bracket or table The unit may fall causing injury to a person or damage to the unit Mount the unit according to the manufacturer s instructions with th...

Page 4: ...power lines or circuits contact with them could be fatal 14 OVERLOADING Do not overload wall outlets extension cords or integral convenience receptacles as this increases the risk of fire or electric...

Page 5: ...adiate radio frequency energy and if not installed and used in accordance with the instructions it may cause harmful interference to radio communications However there is no guarantee that interferenc...

Page 6: ...low fuse Fuse installed in mains inlet connector Optional factory installed 220V 230V 240V mains with 3 15 Amp slow blow fuse Inputs Left and Right RCA Single Ended SE High quality recessed gold pin c...

Page 7: ...as No negative feedback Frequency response 20Hz to 50Khz 1dB Total Harmonic Distortion 0 22 at 1W into 8 Ohms Gain of 23dB Noise level 0 2 mV RMS into 8 Ohms with input shorted 1 metal film resisters...

Page 8: ...powering up however for best performance allow at least 30 minutes of warm up It is not recommended to drive the Bia 120 directly from a DAC or to use a passive volume control The Bia is designed to b...

Page 9: ...ully plug in the AC power cable to the power amp first then into the wall outlet Turn it on Turn on the power amp using the ON OFF switch located on the front right logo plate The amber LED indicates...

Page 10: ...an amplifier with hot tubes Tubes are the most vulnerable when they are hot and it will break the filament not the glass It s important to provide adequate ventilation of at least 12 above the unit an...

Page 11: ...uipment attached to this unit To return the product it must be packed in its original packaging and returned to Zesto Audio or its authorized representative via insured freight at the owner s expense...

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