Thursday, September 29, 2016

Zesto Andros Téssera Phonostage



























$12000


Features

Two completely independent dual mono channels, with LED indicators for A and B
Accommodates 4 tonearms, 1 MM and 1 MC per channel
All settings are saved when you switch between channels
Dual chassis with external power supply
3 meter umbilical cable incorporating special RFI suppression to provide lower black levels
Dedicated high quality output transformers drivin by output tubes
True floating ground, transformer balanced XLR inputs and outputs
12 position MC load per channel with more finessed adjustable options like 1000, 800, 700, 500, 400, 350, 300, 250, 200, 150, 100, 50 Ohms
Easily adjustable MC “Load on the fly” without klicks or pops so you can hear the change
100% tube circuitry in the signal path without any solid state devices
All switching is done with relays
Ground lift switches are on each channel to prevent noisy ground loops
All the RCA and XLR connectors are Gold plated for better conductance and lower corrosion
All switches and knobs are easily accessible, nothing hidden inside to adjust
Recessed RCA connectors are durable and will hold up to the typical Audiophile who loves to change their configuration
Elegantly designed 16 gauge steel enclosure to help isolate the electronic “chatter” from nearby equipment
Each unit is hand built “Made in the USA”
50 hour factory burn in on all circuits and vacuum tubes


Specifications:

Inputs per Channel

Two completely independent dual mono channels, A and B with LED indicator
Accommodates 4 tonearms, 2 per channel
Separate MM and MC inputs per channel
Each channel has independent controls and all selections are saved when you switch between channels
Selection switch for MC and 2 position MM 47K and MM 68K
MM impedance switch 47K or 68K Ohms
MM capacitance 220pf
MC transformer Balanced gold plated XLR input
MM and MC Single Ended RCA input, gold plated with isolated ground
4 MC ground on/off switch
12 position MC load impedance:1000, 800, 700, 500, 400, 350, 300, 250, 200, 150, 100, 50 Ohms
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 by dedicated 12AU7/ECC82 output tubes
True floating ground, transformer Balanced XLR gold plated outputs
Single Ended gold plated RCA output, with isolated ground
Impedance 150 Ohms
+8V max output level


Active Components

Four (4) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets
Two (2) Gold pin JJ ECC82/12AU7 vacuum tubes with high quality gold pin ceramic sockets


Power

Dual chassis
Power supply with 3 meter DC umbilical cable incorporating special RFI suppression
Locking bayonet connector rated for higher voltage and higher current
3 internal linear regulated power supplies, 1 high voltage 250V and 2 low voltage 12V
Power supply dual color LED, yellow for standby and red for ON
Main unit push ON/OFF front power switch illuminates a red LED on Channel A or B
Power supply standby switch on the front
Power supply standby power rating 7 Watts
Power consumption 52 Watts
Standard 3 pin 15A IEC power connector on power supply
Voltage 110/120V AC 60Hz
Optional factory installed 220V or 230/240V AC 50/60Hz


Detailed Specifications

3 position Gain switch
MC input 60dB, 65dB and 70dB or MM input 40dB, 45dB and 50dB
Noise – 90 dBu 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
All analog tube circuitry with no solid state devices in the signal path


Other Features

Controls on the front
“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 main chassis 17″ W X 14″ D X 5.5″ H, Power Supply 17”W x 8”D x 5”H
Weight: Main unit 25 lbs (11.34 Kg), Power supply 17 lbs (7.7 Kg)
Shipping weight 53 lbs (24 Kg), box 20″ X 20″ X 20″
16 gauge zinc plated steel enclosure
Two year limited warranty
Six months warranty on Vacuum Tubes

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