The ultimate Class A integrated amplifier—engineered to deliver the musicality and performance of separate components in a single chassis. Built on Grandioso "X" Edition technologies, the F-01 combines a fully balanced dual mono preamp with a powerful 30 WPC Class A amplifier section. Features include ES-Link Analog inputs, dual headphone outputs, a dual mono phonostage, and precision stepped attenuator control in 0.1dB increments. The massive 940VA power transformer and custom block capacitors ensure exceptional power linearity and dynamic drive. Designed for discerning listeners who demand reference-grade sound without compromise.
Key Features
[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
