Zesto Audio Andros Tessera

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 15″ 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