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zesto Andros 1.2 - User Manual

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Zesto Audio 2016 Page #1
Andros 1.2
Vacuum Tube Phonostage Preamplifier
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
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Summary

Warning and Caution

General Safety Guidelines

Covers manual reference, attachments, mounting, environment, ventilation, and heat precautions.

Electrical and Power Safety

Details grounding, power sources, cord protection, and lightning safety.

Important Safety Notes and FCC Information

Important Safety Notes

Crucial safety advice on connecting equipment, power cords, fuses, and wiring.

FCC Information for User

User warnings regarding modifications and radio frequency interference.

Rear Panel Inputs and Controls

Power and Output Connections

Describes power switch, IEC connector, ground post, and RCA/XLR outputs.

Input and Signal Selection Controls

Details MM/MC inputs, selection switches, and ground switches.

Cartridge Loading and Gain Settings

Explains MC load, MM load, and MC high/low output switches.

Specifications

Input and Output Specifications

Details input impedance, output level, and channel specifications.

Power and Component Specifications

Covers power consumption, voltage, active components, and detailed specs.

Other Features and Dimensions

Highlights build, burn-in, dimensions, and weight of the unit.

Hookup, Settings and Adjustments

Proper Care of Vacuum Tube Phonostage

Provides essential rules for turning equipment on and off to prevent damage.

Setup Procedures

Guides through burn-in, tube installation, output connection, ground wire, and input setup.

Cartridge and Power Configuration

Details cartridge setup, feet installation, power connection, and initial power-on.

Tips and Tricks

Grounding Adjustments

Explains the importance and adjustment of ground switches for noise reduction.

MC and MM Load Settings

Guides on adjusting MC impedance and MM load for optimal sound.

High;Low MC Gain Setting

Details the function and recommended use of the High/Low MC gain switch.

Further Tips and Operational Notes

Volume and Tube Rolling

Troubleshooting volume issues and advice on experimenting with vacuum tubes.

Noise, Power Cords, and Outputs

Addresses tube rush noise, power cord sensitivity, and balanced vs. single-ended outputs.

Equipment Usage Recommendations

Discusses leaving the equipment on versus frequent on/off cycles.

Warranty Information

zesto Andros 1.2 Specifications

General IconGeneral
Brandzesto
ModelAndros 1.2
CategoryAmplifier
LanguageEnglish