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Zesto Audio 2021                                                                        Page #4 
 

Warning and Caution 

  
WARNING: 

The  triangle  with  the  lightning  flash  symbol  displayed  on  the  unit  advises  the  user  of  dangerous 

uninsulated voltage inside the product’s enclosure. 
  

CAUTION: 

To reduce the risk of electric shock, do not remove the cover. There are no user-serviceable parts 

inside; it is recommended that only qualified personnel service this component. 
  
1. 

OWNER’S MANUAL: 

Before powering up the equipment, read all safety and operating instructions and 

follow them as instructed. Retain the safety and operating instructions for future reference. 

  
2. 

ATTACHMENTS: 

Use only those attachments recommended by the unit manufacturer, as others may 

cause hazards. 

  
3. 

ACCESSORIES: 

Do not 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 the suggested mounting accessory. 

  
4. 

WALL OR CEILING MOUNTING: 

Do not mount the unit on a wall or ceiling. 

  
5. 

WATER AND MOISTURE: 

Do not use the unit near water (for example, near a swimming pool, bathtub, 

wash bowl, kitchen sink, or laundry tub) or in a damp environment (like a basement or outside in the rain). 

  
6. 

OBJECT AND LIQUID ENTRY: 

Do not push objects of any kind into the unit through openings as they 

could touch dangerous voltage points and short-out parts, possibly resulting in a fire or electric shock. Do 
not spill liquid of any kind on the unit. If water or any metal object (such as a paper clip, coin, or staple) 
accidentally falls inside the unit, disconnect it from the AC power source immediately and contact Zesto 
Audio for further instructions. 

  
7. 

HEAT: 

Position the unit away from heat sources such as radiators, heat registers, stoves, or other units 

(including amplifiers) that produce heat. 

  

8. 

VENTILATION: 

Slots and openings in the enclosure create ventilation to protect the component from 

overheating. All of these openings must remain unobstructed. Allow at least six inches of clearance above 
the unit, 0.5 inch below and an opening behind the unit for airflow. Do not place the unit on a bed, sofa, 
rug, built-in bookcase, or rack without adequate ventilation. 

  
9. 

GROUNDING OR POLARIZATION: 

As a safety feature, the unit may be equipped with a polarized 

alternating current line plug in which one blade is wider than the other and has an additional grounding 
blade. This plug will fit into the power outlet only one way. If you cannot insert the plug fully into the outlet, 
try reversing the plug. If the plug still will not fit, contact a licensed electrician to update your outlet. Do not 
defeat the safety purpose of the polarized plug. 

  
10. 

POWER SOURCES: 

Operate the unit only from the power source indicated on the marking label on the 

back of the unit. If you are unsure of the type of power supplied to your home, consult your unit

 

dealer or 

local power company. 

  
11. 

POWER CORD PROTECTION: 

Arrange power supply cords so that they do not suffer from foot traffic or 

pinching by items placed on or against them. Pay close attention to cords where plugs enter the AC outlet 
and where they exit from the unit. 

  

Содержание Andros Tessera Phonostage

Страница 1: ...e Vacuum Tube Phonostage Preamplifier Owner s Manual Please read carefully before installing and operating this equipment 3138 Calle Estepa Thousand Oaks California 91360 www zestoaudio com 805 807 18...

Страница 2: ...ood thing Each unit is built by hand with precision and pride to produce the most enjoyable listening experience for you I am proud to put my name on it and honored to share this with you Wishing you...

Страница 3: ...cations Page 9 10 Tube Layout Page 11 Before You Start Page 11 Hookup Settings and Adjustments Page 12 13 Tips and Tricks Page 14 15 Warranty Information Page 16 What s in the box Andros T ssera Refer...

Страница 4: ...If water or any metal object such as a paper clip coin or staple accidentally falls inside the unit disconnect it from the AC power source immediately and contact Zesto Audio for further instructions...

Страница 5: ...power cord provided with your unit was specifically designed for use with this product but other AC cords may be used Consult your dealer for advice on AC power cords and high quality wire in your sys...

Страница 6: ...channel bottom row Moving Coil RCA MC Input Left and Right A possible turntable input Left channel white RCA Right channel Red RCA RCA Moving Magnet MM Input Left and Right A possible turntable input...

Страница 7: ...or Switch MC or 2 position MM Load LED Light Indicates Channel A is On Gain Switch 3 Position for MC MM MC Load 12 Position MC Load Channel Selector Either A or B Channel B reading Left to Right MC MM...

Страница 8: ...for On Rear reading left to right IEC Power Entry Connector 110V 120V AC power input Optional factory installed 220V 240V 50 60Hz mains Mains fuse Located in drawer of Mains IEC connector Mains Fuse...

Страница 9: ...4 Superior quality MC Internal step up transformers 3 position MC gain switch for High Medium Low output cartridges Two ground binding posts Outputs per channel High quality output transformers driven...

Страница 10: ...nd 75dB or MM input 47dB 51dB and 55dB Noise 95 dBV below max output level Dynamic range 116 dBV Frequency response complies with the original RIAA curve within or 0 5 dB RIAA curve is achieved using...

Страница 11: ...Tube V6 12DW7 ECC832 Driver Tube V5 12DW7 ECC832 Driver Tube Important Tubes are not interchangeable Before you start you will need Interconnect cables to your system RCA or XLR Turntable cables RCA o...

Страница 12: ...esto Audio ships all their Phonostage units with at least 50 hours of burn in Vacuum Tubes Important Warning First identify the 3 types of tubes as they are NOT INTERCHANGEBLE Your input tubes are ECC...

Страница 13: ...ube electronics should not be turned ON then OFF then ON again quickly This could blow a fuse or create a hum Once the unit is ON it is safe to wait a minute before switching OFF If you do get a hum l...

Страница 14: ...upgrading your power cable Recommend balanced interconnect cable from your phonostage to your line amp MC Load Adjustments The range is 1K to 50 Ohms in twelve steps Find the setting that sounds best...

Страница 15: ...e not interchangeable Tube Rolling The Sport of Audiophile Kings The unit is designed around the JJ ECC83s because they are neutral consistent and are high gain low noise We also use JJ ECC82s If your...

Страница 16: ...carries no responsibility for any other equipment 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 v...

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