The Esoteric F-01 Class A Integrated Amplifier encapsulates the pinnacle of high-fidelity audio engineering. This elite amplifier integrates the celebrated Grandioso “X” Edition technologies, delivering an audio performance that transcends the typical boundaries of integrated systems. Its balanced dual mono preamplifier and comprehensive upgradability make it a formidable choice for audiophiles seeking the zenith of musical purity and power.
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
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)
Spec description:
Speaker output
Rated output power 30W + 30W (8Ω, Class A) 60W + 60W (4Ω)
Compatible speaker impedance 4Ω
Speaker terminal 1 set (L/R)
Analog audio inputs ES-Link Analog/XLR 3 pairs
Input impedance 10kΩ (XLR)
RCA 3 pairs
Input impedance 10kΩ
PHONO 1 pair (MC/MM switchable)
Input impedance
MM 47kΩ
MC 100Ω
Analog audio outputs
ES-Link Analog 1 pair
XLR 1 pair
Output impedance 100Ω
Headphone outputs
Standard 6.3mm (¼) stereo jack 1
4-pin XLR jack 1
Maximum effective output
Unbalanced 300mW + 300mW (into 32Ω)
Balanced 600mW + 600mW (into 32Ω)
Applicable load impedance
Unbalanced 16 to 600Ω
Balanced 32 to 600Ω
External controls
RS-232C 1
DC trigger input (TRIGGER IN) 1 (3.5mm mono mini jack)
DC trigger output (TRIGGER OUT) 1 (3.5mm mono mini jack)
General
Power supply
Model for US/Canada AC 120V, 60Hz
Model for Europe/Hong Kong AC 230V, 50Hz
Power consumption 250W
215W (no signal)
Standby power 0.3W (when RC-232C is OFF)
0.6W (when RC-232C is ON)
Overall dimensions (W×H×D) 445 × 191 × 471mm (including protrusions)
Weight 32.2kg
Included accessories Power cord × 1
Remote control (RC-1339) × 1
Batteries (AA) × 2
Felt pads × 4
Owner’s manual × 1
Warranty card × 1
