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Andros 1.2 Phonostage

Designed for music lovers who demand the highest fidelity from their vinyl records

 

Zesto Audio is honored to receive
The 12th Annual Positive Feedback Writers' Choice Award for 2015 - 

Best of the Best! for Products of the Year

Read Mark's review of the Andros

  • Description
  • Features
  • Specifications
  • Reviews
  • Downloads

For true audiophiles, nothing equals the warmth, dynamic range and fidelity of vinyl records. A critical component of every music lovers Vinyl playback system is the Phonostage.

Why a Phonostage is So Important
When a vinyl record is made the volume of the bass is reduced and the treble is increased. Otherwise, the bass would cut a groove too big for a stylus to read or for the music to fit the record. The phonostage reverses the process by taking the delicate signal from your cartridge and adjusting it so that the bass and treble are restored to their original volume. This common standard is known as the RIAA curve.

The Andros
Inspired by RCA’s vacuum tube circuit designs from the 1930s, the Andros has been engineered to bring you the clarity and depth of the original recording. Your highs will be crisp but not overly emphasized, your midranges clear and present without being shrill and your lows full and firm without being boomy.

A Startling Difference
As we went through testing our panel of audiophiles marveled at hearing subtle nuances, discovering new things in recordings they’d played many, many times. They appreciated its clear stereo image with maximum channel separation and minimal phase distortion.

Hearing is Believing
Words are inadequate to the task of explaining the Andros. You simply must hear it to believe it.

What is Andros?
Andros is a Greek Island, and the home of my grandmother's family.

  • The Circuit is specifically designed to provide sufficient amplification to match your cartridge with the rest of your system.
  • Each unit is hand built "Made in the USA".
  • 50 hour factory burn in on all circuits and vacuum tubes.
  • A low Noise level of -75dBu below maximum output allows the quietest passages of you music to be heard.
  • The output circuit is designed to drive your cables and isolates the output from the influence of the next stage.
  • RCA connectors are high quality, Gold plated, recessed with an isolated ground.
  • Isolated ground RCA connectors plus the Ground On/Off switch will allow you to choose the best ground configuration.
  • Recessed RCA connectors are durable and will hold up to the typical Audiophile who loves to change their configuration.
  • All switches and knobs are easily accessible, nothing hidden inside to adjust.
  • Two position MM switch 47K and 15K Ohms to accommodate more cartridges.
  • 10 position MC load switch from 20 to 1000 Ohms and more in the sweet spot above 200.
  • Accommodates both high and low MC output cartridges
  • Elegantly designed 16 gauge steel enclosure to help isolate the electronic “chatter” from nearby equipment.
  • On/Off power switch conveniently mounted on front side panel
  • Easy to read large type on back panel

inputs per channel

  • Separate MM and MC inputs
  • MM/MC switch
  • MM impedance switch 47K or 15K Ohms
  • MM capacitance 200pf
  • MC Single Ended RCA with isolated ground or Balanced XLR3F
  • MC ground on/off switch
  • MC load impedance adjustable 1000, 800, 600, 500, 400, 300, 200, 100, 50, 20 Ohms
  • MC Internal step up transformers
  • MC High/Low switch with -6dB gain for high output MC cartridges

Outputs per channel

  • Impedance 10K ohms
  • +6V max output level

Active Components

  • Four (4) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets

Power

  • Ground binding post
  • Power consumption 27W , 0 drain when off
  • Voltage 110/120V AC 60Hz
  • Optional factory installed 220V or 230/240V AC 50/60Hz
  • Standard 3 pin IEC power connector
  • ON/OFF power switch conveniently located on the front side
  • Two internal high quality linear regulated power supplies, 250V and 12V

Detailed Specifications

  • Gain MM input 47dB
  • Gain MC input 67dB
  • Noise - 75dBu below max output level
  • Frequency response complies with the original RIAA curve within +or- 0.5 dB
  • RIAA curve is achieved using a passive filter
  • 1% metal film resisters throughout
  • Polypropylene capacitors throughout the audio path

Other Features

  • "Made in the USA" using US and imported parts
  • Each unit is built by hand
  • 50 hour factory burn in on all circuits and vacuum tubes
  • Dimensions 17" W X 12" D X 5" H
  • Weight 20 lbs.
  • 16 gauge zinc plated steel enclosure
  • Two year limited warranty
  • Six months warranty on Vacuum Tubes

 

Zesto Audio is honored to receive
The 12th Annual Positive Feedback Writers' Choice Award for 2015 - 
Best of the Best! for Products of the Year


About the Award
".....this is an opportunity for our editors and writers to recognize superior merit in the audio arts through their "Writers' Choice Awards". Our writers and reviewers have been given broad leeway to cite excellence in fine audio wherever they find it......"
Carol Clark - Editor, Positive Feedback - 11-29-2015 - Issue 82
See all the winners

Our sincere thanks to Mark Pearson, we are honored!
Read Mark's review of the Andros

 

 

Stereophile

"Great sound overall, and creating systems that have collaborative synergy

under difficult show situations in hotel rooms isn't a given." 
By Sasha Matson-Stereophile- October 5, 2015
Read more

 
 
 
Mark Pearson – Positive Feedback – August 11th 2015
Andros 1.2 Phonostage

“I have had lots of phono sections in my system(s) over the years, but I have never had one this good or this quiet.” Read entire review

pfo logo

"My highest recommendation." 
Robert H. Levi - Positive-Feedback Online - March 2015
Click to read the review

"Combine trend setting flexibility, head turning design, glorious performance, and super competitive pricing and you will understand the impact of this beauty in my reference system. If you are searching for a top performing phono stage, consider the Andros 1.2."
Robert H. Levi - PFO - March 2015
Read review

 

 

"It has solidity, dimensionality, vitality, transparency, excellent transient response, well-defined and extended bass, a superbly rich midrange and very low noise." 
"An outstanding product."
Paul Seydor - The Absolute Sound - March 2012

Read the full Andros review

Michael Fremer - Stereophile Analog Corner - March 2013
Zesto Audio Andros phono preamp

"...The Zesto had an addictive, warm overall sound, with plenty of impact, detail and grace. It's among the more enjoyable and satisfying phono preamplifiers I've auditioned at any price ..." 

 

Jeff Dorgay

Andros Phonostage PS1 - TONEAudio - September 2012

"After a solid month of intense audition, the Zesto Andros PS1 exhibits no weaknesses whatsoever. While it has a beautiful visual aesthetic, it continues to be a joy to listen to and is ultimately musical. With many audiophiles on a quest for gear that is increasingly more resolving, it might be easy to overlook the Andros PS1, but truly wise LP lovers will treasure the Zesto because the balance is just right. Much like a car with perfect 50/50 weight balance, along with equal amounts of stop and go, the Andros PS1 doesn't maximize any one parameter at the sake of another and that is its magic." Read entire review