Zesto Audio Leto Ultra, Owner'S Manual

Page: 7 / 17

7 | P a g e
Specifications
Inputs

6 Inputs with remote or manual controls

3 sets of true transformer Balanced inputs (pin 2 hot) with an impedance of 10K
Ohms

3 sets of Single Ended inputs with an impedance of 100K Ohms

Maximum input level of 7 Volts RMS
Outputs

4 Line outputs

2 sets of true transformer Balanced outputs (pin 2 hot) with an impedance 150
Ohms

2 sets of Single Ended outputs with an impedance 150 Ohms

Maximum peak output level of 10 Volts RMS

2 Independent ground lift switches on the left and right outputs
Presence

6 position remote or manual Presence control

Presence 0,-1, -2, -3, -4, -5 (low pass shelf)

0 = Presence feature is not engaged
(completely disconnected from the circuit like a normal preamp)

-1 = 13Khz and above

-2 = 8Khz and above

-3 = 4Khz and above

-4 = 2Khz and above

-5 = 1KHz and above

Presence control defaults to “0” when changing inputs

Presence control defaults to “0” when you turn the unit on
Gain

3 remote controlled Gain settings of 9dB, 6dB and 3dB

Manual Gain push button on rear panel

Gain setting is saved on each input
Vacuum Tubes

Two (2) Gold pin JJ ECC82/12AU7

Two (2) Gold pin JJ ECC832/12DW7

High quality gold pin ceramic sockets