Zesto Audio Leto Ultra II Preamp

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Zesto Audio Leto Ultra II Preamp

Zesto Audio – Leto Ultra II Preamplifier

Zesto Audio Leto Ultra II Preamp DESIGN PHILOSOPHY
The preamp is the unsung hero of your system. Like a great actor who never seems to be “acting” it does all the work without getting noticed. As an engineer, my goal is to deliver the most pristine signal from your audio sources to your power amps without coloration.

Zesto Audio Leto Ultra II

• My own setup features lots of audio sources, so I wanted lots of inputs and a variety of gain settings. I also wanted it simple to use, so every adjustment is remote or manually controlled.
• A unique feature I added is the Presence Control, which was born out of my frustration after finding some of my favorite recordings became unlistenable the more resolved my system became, regardless of the source. This new feature deals with the harmonic balance of the mid and high frequencies. Now I can easily adjust the balance for every song.
• I have been enjoying this in my own listening and am certain you will too.
• FOCUS ON THE MUSIC
  With the Leto in your system it will allow the sonic detail to come through, so you focus is on the music and the hardware will seem to disappear.
• WHAT IS LETO?
  In Greek mythology, Leto is the mother of Apollo.
• PRESENCE
  6 position remote or manual Presence control
  Presence 0,-1, -2, -3, -4, -5 (low pass shelf)
  0 = Not engaged
  -1 = 13Khz and above
  -2 = 8Khz and above
  -3 = 4Khz and above
  -4 = 2Khz and above
  -5 = 1KHz and above
  When the unit is turned on, or you switch inputs, the presence control will go to “0”
  Presence control defaults to 0 which disengages from the circuit
  GAIN
  3 remote controlled Gain settings of 9dB, 6dB and 3dB
  Manual Gain switch on rear panel
  Gain setting is saved on each input
  Zesto Audio Leto Ultra II Preamp DETAILED SPECIFICATIONS
  Remote control Input, Volume, Mute, Mono, Presence and Gain settings
  All adjustments can be operated manually (just in case the remote is misplaced)
  Frequency response 10Hz to 40Khz ~ 2dB
  Distortion ~ 0.013% with 1V RMS input
  Signal to noise ~ 100dB below operating level
  Non inverting output polarity
  Cross talk >90dB
  1% metal film resistors throughout
  Polypropylene capacitors throughout the audio path
  POWER
  Newly designed internal power supplies using Toroidal transformers, 1 high voltage 300V and 1 low voltage 12VPower consumption 30W, 0 drain when off
  Voltage 100 to 120V AC 60Hz
  Optional factory installed 220V to 240V AC 50/60Hz
  Standard 3 pin IEC power connector
  ON/OFF power switch conveniently located on the side panel
  VACUUM TUBES
  Two (2) Gold pin JJ ECC82/12AU7
  Two (2) JJ ECC832/12DW7
  High quality gold pin ceramic sockets
  OTHER FEATURES
  Each unit is hand made in the USA
  50 hour factory burn in on all circuits and vacuum tubes
  Dimensions 17”w X 12”d X 5”h
  Weight 28 lbs.
  Shipping weight 30 lbs.(12.70 kg)
  Shipping box: 21”w x 21”d x 11”h (53.34cm x 53.34cm x 27.94cm)
  16 gauge zinc plated steel enclosure
  Two year limited warranty
  Six months warranty on Vacuum Tubes
  Recessed RCA and XLR connectors are Gold plated with an isolated ground.
  All switches and knobs are easily accessible, nothing hidden inside to adjust.

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