Esoteric F-01 Class A Integrated Amplifier

Esoteric F-01 Class A Integrated Amplifier

The "finest" class A integrated amplifier
incorporating Grandioso “X” Edition amp technologies.

The “Finest” Integrated Amplifier You Could Ever Want – The new F Series integrated amplifiers are the culmination of a range of technologies designed to fulfill your ideals.
Incorporating all of the preamp and power amp developments from the flagship Grandioso “X” Edition, the new F Series integrated amplifiers deliver outstanding musicality that captures the rich textures of music in a single integrated amplifier. Despite the fact that the F Series is an integrated amplifier, it delivers a thorough quality and performance that will be the envy of all separate amp users. The F Series is the integrated amplifier that owners of Esoteric’s K and N Series digital players have been waiting for, and it pushes the boundaries of integrated amplifier technology.

[Preamplifier Section]

• A fully balanced dual mono preamp in the direct line of the Grandioso C1X
• "Ultra Fidelity Attenuator System", a stepped attenuator circuit developed by Esoteric
• Volume can be adjusted in 0.1dB/1,120* steps with our proprietary attenuator module "UFA-1792" *Preamp gain setting: at +12dB
• 3 inputs of “ES-Link Analog”, a unique and proprietary current transmission system
• Two headphone outputs (balanced 4-pin XLR / unbalanced 6.3mm) with built-in fully balanced dual mono headphone amplifier
• Dual mono phonostage preamp (RCA x 1, MM/MC)
• 3-band balanced tone control, independently adjustable for each input source
• ES-Link Analog(x1) /XLR (x1) pre-out for connecting the S-05 as an external power amplifier
• Dedicated DC power connector for connecting the PS-01F external power supply dedicated to the built-in preamp
• Preamp gain can be adjusted in 4 steps (0/+6/+12/+18dB) to match the connected power amplifier

[Amplifier Section]

• Simple and straightforward circuit design concept based on Grandioso S1X
• Class A 30 WPC/8Ω
• Excellent power linearity and driving power (60 WPC/4Ω)
• All stages of the power rectification and smoothing circuit are configured with dual monaural design
• Powerful bipolar transistor 3-parallel push-pull configuration
• Huge 940VA EI core power transformer
• Channel-independent Grandioso grade custom block capacitors (10,000μF x 4/ch)
• • Custom wave-shaped heat sinks to reduce peak resonance
  [Other Features]
  • Independently adjustable input gains (±18dB; 0.1dB steps)
  • L/R channel balance (0.1dB steps)
  • AV through output (volume bypass) ensures seamless coexistence with AV systems
  • Aluminum body remote controller (RC-1339) can also be used to operate Esoteric's SACD players and network players
  • Displayed source device names can be programed
  • Mute, dimmer and automatic display-off functions
  • Control functions (RS-232C, trigger input / output)