Esoteric Grandioso F1 - Integrated Amplifiers - Audio Impact (2022)

The Grandioso F1 is a fully balanced preamplifier that descends from the Grandioso C1. It is resilient to noise, and can amplify signals purely and powerfully with low impedance.

Dual Monaural Configuration

A dual monaural configuration with separate left and right sides has been adopted for all stages; from the preamplifier stage to the final stage of the power amplifier. The inclusion of the largest amount of materials ever used in the circuits of an all-in-one Esoteric amplifier ensures both superior sound quality and channel separation.

"ES-LINK Analog" Method for High Quality Current Transmission

In addition to regular line connections (XLR and RCA), the Grandioso F1 features the new "ES-LINK Analog" transmission method developed by Esoteric. This current transmission method utilizes the high performance of the HCLD buffer circuit and its enhanced ability to supply power at high-speed to transmit a pure and strong signal with minimal interference from the impedance of the signal route. This is the ideal method for analog audio transmission as it fully maximizes the system's potential when connected to a compatible device.*

*Included in the Grandioso K1 as of September 2016. A standard balance cable (with an XLR terminal) is used for connections, but the "ES-LINK Analog" method can only be used with compatible devices since it is a proprietary transmission method.

ESOTERIC-QVCS

The F1's Esoteric-QVCS* volume control employs four precision switched resistor ladder networks, which change in unison as the volume knob is rotated. This arrangement allows the signal paths for the left and right channels and their positive and negative phases to be kept totally independent and as short as possible. Consequently the sound has superb clarity, excellent channel separation and highly accurate phase characteristics. The elimination of audio board wiring to the volume control further contributes to a reduced signal path, while preventing degradation of sound quality and helping to maintain the low distortion one would expect of a reference model.

*QVCS = Quad Volume Control System

Ultra Low Noise Logic Controls

All control systems in the Grandioso F1 are electrically separated from the main preamplifier using isolator chipsets and contained in the front panel to effectively minimize noise.

High Precision Ball Bearing Control Knobs

Employing the same high-precision bearing system used in our VRDS transport mechanisms, the F1's volume control knob and selector switch provide exceptionally smooth operation with an analog feel free of any mechanical play. Sparing no cost, the front panel and all panel knobs are custom-machined from solid aluminum.

Dual Mono Phonostage Preamp

The dual mono phonostage preamp (MM/MC) features independent left and right channel power sources and independent circuits.

High-Quality Headphone Amplifier

The powerful headphone amp provides abundant output to effectively drive even difficult to power high-end high-impedance headphones.

3-Band Tone Control (Treble/Middle/Bass)

Commitment to achieving all the quality associated with high-end components results in a balanced dual monaural configuration consisting of four circuits (L/R, -/+) for each band. This system enables users to adjust tone settings free of any concerns about sound quality deterioration. Shifting the variable band more than usual toward the high and low frequency ranges (14kHz/63Hz) permits fine adjustment of bass and treble without adversely affecting the original source signal. Fully electronic control also permits fine adjustment of up to ±12dB in 0.5dB steps.

"ESOTERIC MODEL200" Next-Generation Silicon Carbide MOSFET

Each year it is becoming harder to obtain discrete parts with excellent audio quality. That is why Esoteric, which prides itself on in-house production, decided to collaborate with New Japan Radio Co., Ltd. to develop a proprietary MOSFET device that meets stringent sound quality and performance standards. After more than two years in development, we finally completed our first proprietary MOSFET for the Esoteric brand, called the ESOTERIC MODEL200.

(Video) Overture Audio, Magico M2 Speakers, Technics SL 1000, Esoteric Grandioso Electronics, Capital Audio

The ESOTERIC MODEL200 is a dedicated MOSFET device for the power amplifier output stage that uses a next generation power device and the widely lauded high-tech material called silicon carbide (SiC). Since it features lower capacity and lower loss than regular silicon devices, its current tolerance performs amazingly well in benchmarks, with a maximum instant current of 150 A and continuous current of 78 A. Since it can freely control a large current with quick startup, it is excellent for driving low-frequency ranges and provides powerful playback of music. Furthermore, its greatly improved transient response provides extremely low noise with high-frequency ranges for lively and vibrant sound throughout the entire audio spectrum. This is the ideal MOSFET device for a flagship model, due to its ability to powerfully, flexibly and naturally follow the dynamics of ever-changing music.

Parallel Push-Pull, Class A, 30W+30W(8Ω)

The Grandioso F1 adopts a newly-designed parallel push-pull Class A power amplifier circuit to bring out the most of the ESOTERIC MODEL200 silicon carbide MOSFET. This faithfully adheres to the Esoteric amplifier philosophy of using impressive quantities of the finest materials while adopting a minimal circuit configuration to ensure the shortest signal route, and achieves both pure amplification and speaker drive ability rivaling that of separated models.

Balanced Power Amplifier Input Stage

The front stage of the power amplifier has been balanced to achieve clean amplification at low impedance and further increase the dynamic range heard by the listener.

Large-Capacity Custom Power Transformer - The Heart of the Finest Power Amplifiers

As one of the most important factors in deciding an amplifier's ultimate sound quality, the F1's robust power supply plays a critical role in its ability to deliver high power in a linear manner. The power supply's large 1,000VA toroidal transformer provides the foundation for the F1's exceptional power output. With the knowledge that an amplifier's sound quality is ultimately determined by the quality of its power transformer, the F1 employs a custom power transformer that demonstrates Esoteric's highly developed expertise in material selection, core size and even mounting technique.

The power supply also features 40,000µF block capacitors for each channel in a dual monaural configuration. Large-gauge cable is used in all connections to help minimize impedance. This outstanding power section achieves a theoretically linear power output ranging from 30W at an 8Ω load to 60W at 4Ω for faithful reproduction of every musical dynamic.

Low Impedance for Enhanced Drive Capability

The speaker output section utilizes eight 1mm-thick bus bars formed of high-purity OFC and MOSFET switching with no mechanical contacts. This design minimizes signal impedance and enhances drive capability of the F1.

3D Optimized Chassis Construction

The F1's 3D Optimized Chassis features robust construction that gives each circuit block its own dedicated compartment. Interference between circuits is effectively minimized while achieving the shortest possible cable routing. Chassis exteriors are formed of thick aluminum panels manufactured without compromise following the same design philosophy imbued in Esoteric's separate amplifiers. As a result, the F1 achieved a extremely heavy-duty construction not normally found in conventional integrated amplifiers. Our patented steel pinpoint feet* support the F1 at four points in order to minimize the negative effects of vibration.

Optional Board Slot

An optional board slot facilitates the installation of an optional board, such as OP-DAC1 D/A Converter Board or OP-ESLA1 ES-Link Analog Input Board.

Other features

  • Organic EL display (Normal / Large font).
  • Independently adjustable input gains (±18dB; 0.5dB steps).
  • L/R channel balance.
  • Individually selectable phase inversion for each source.
  • Aluminum body remote controller can also be used to operate
  • Esoteric's SACD players.
  • Displayed source device names can be programed.
  • Mute, dimmer and automatic display OFF functions.

Spec description

Speaker outout

Output power

30W + 30W (8Ω)
60W + 60W (4Ω)

Speaker terminals

Screw type × 1 set (L/R)

Minimum compatible impedance

(Video) Accuphase Vs Esoteric - Part 2 (DP800/DC801 Vs Grandioso K1) [Selena Jones - You Light Up My Life]

Damping factor

100

Headphone output

Output power

1000mW (32Ω, THD10%)

Headphone jack

1 (6.3mm stereo jack)

Analog audio input

ES-LINK Analog

1

Input impedance

– (current input)

XLR

2 pairs

Input impedance

10kΩ

RCA

3 pairs

Input impedance

10kΩ

PHONO

1 pair (MM/MC)

Input impedance

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MM

47kΩ

MC

100Ω

Tone control

Bass

±12dB (63Hz)

Middle

±12dB (630Hz)

Treble

±12dB (14kHz)

General

Power supply

AC 230V, 50Hz

AC 120V, 60Hz

AC 220V, 60Hz

External dimensions(W×H×D)

445 × 191 × 470mm
17-⅝" × 7-⅝" × 18-⅝" (including protrusions)

Weight

30kg / 66-¼ lb

Included accessories

Power cord × 1
Remote cotrol (RC-1315) × 1
AAA batteries × 2
Felt pads × 4
Owner's manual × 1
Warranty card × 1

Audio performance

(Video) Esoteric F-03a with Magico A5’s and MBL N31 CD/DAC/Roon streamer

Frequency response

10Hz to 150kHz (+0dB, –3dB, 1W output)

S/N ratio

ES-LINK Analog input

103dB (30W / 8Ω output, JEITA)

XLR input

103dB (30W / 8Ω output, JEITA)

RCA input

103dB (30W / 8Ω output, JEITA)

PHONO (MM) input

101dB (30W / 8Ω output, JEITA)

PHONO (MC) input

82dB (30W / 8Ω output, JEITA)

Total harmonic distortion

0.009% (1kHz, 8Ω, 30W)

Gain

Preamplifier

24.5dB (when VOLUME at maximum)

Power amplifier

35dB

REF-2460

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FAQs

Are esoteric amplifiers any good? ›

The Esoteric F-05 integrated amplifier is a true standout with exemplary performance well beyond its price point. Innovation, aesthetics, ergonomics—the F-05 has it all. It can deliver tremendous flexibility with a wide range of both analog and digital inputs and outputs.

What is esoteric audio? ›

Since 1987, Esoteric has pursued a path dedicated to being a superior high-end audio/video brand focused on introducing components of the best value by merging innovative, proprietary recording and replay technologies.

Where is esoteric made? ›

ESOTERIC is a high end audio manufacturer established in 1987. Based in Tokyo, all products (ranging from network audio players, SACD players, DACs to amplifiers) are hand built in our factory to exacting standards.

Who makes esoteric Audio? ›

TEAC CORPORATION

What is the difference between esoteric and exoteric? ›

Religious context

The term "exoteric" may also reflect the notion of a divine identity that is outside of, and different from, human identity, whereas the esoteric notion claims that the divine is to be discovered within the human identity.

What is the root word of esoteric? ›

The first records of the word esoteric come from the mid-1600s. It comes from the Greek esōterikos, from esōterō, meaning “inner.” Esoteric information is that which can only be understood by an inner circle of people, such as those with in-depth knowledge of an obscure subject.

What are three synonyms for esoteric? ›

synonyms for esoteric
  • abstruse.
  • arcane.
  • mystical.
  • Delphic.
  • acroamatic.
  • cabalistic.
  • cryptic.
  • deep.

What does it mean if someone is esoteric? ›

esoteric, the quality of having an inner or secret meaning. This term and its correlative exoteric were first applied in the ancient Greek mysteries to those who were initiated (eso, “within”) and to those who were not (exo, “outside”), respectively.

What is esoteric art? ›

Esoteric art may refer to painted, sculpted, printed, or textile media representations of esoteric divinities or esoteric symbols, ritual implements and furnishings, and halls or pagodas used for esoteric rites. The definition of esoteric art, like that of esoteric Buddhism, may be broad or narrow.

What is esoteric literature? ›

Western esotericism, also known as esotericism, esoterism, and sometimes the Western mystery tradition, is a term scholars use to categorise a wide range of loosely related ideas and movements that developed within Western society.

What is the difference between arcane and esoteric? ›

Esoteric: Intended for or likely to be understood by only a small number of people with a specialized knowledge or interest. Arcane: Understood by few; mysterious or secret.

What is the opposite of exoteric? ›

The antonym of exoteric is esoteric, meaning "designed for or understood by the specially initiated alone"; it descends from the Greek word for "within," esō.

How do you use esoteric in a sentence? ›

very unusual and understood or liked by only a small number of people, especially those with special knowledge: He has an esoteric collection of old toys and games. disapproving or humorous She has a somewhat esoteric taste in clothes.

What is an example of esoteric? ›

The definition of esoteric is something only understood by a chosen group. An example of esoteric is pa++ern, an embroidery language. Intended for or understood by only a small group, especially one with specialized knowledge or interests. An esoteric philosophical doctrine.

What is an example of esoteric knowledge? ›

Astrological beliefs, including supposed relationship between planets and select plants, are presented as esoteric knowledge.

What are esoteric subjects? ›

An esoteric subject is a subject that is known to a select group of people rather than the population at large.

How do you pronounce esoteric UK? ›

Break 'esoteric' down into sounds: [ES] + [OH] + [TERR] + [IK] - say it out loud and exaggerate the sounds until you can consistently produce them.

What's the definition of abstruse? ›

formal. : difficult to comprehend : recondite. the abstruse calculations of mathematicians. abstruse concepts/ideas/theories. abstrusely adverb.

What is the opposite of cognitive? ›

fallacious, misleading, sophistic. (or sophistical), specious.

What does esoteric mean in philosophy? ›

In the Oxford English Dictionary, esoteric is defined as follows: Of philosophical doctrines, treatises, modes of speech, etc.: designed for, or appropriate to, an inner life of advanced or privileged disciples; communi- cated to, or intelligible by, the initiated exclusively.

How do you remember the word esoteric? ›

(Pronounced es-oh-terr-ik)

He is so terrific (Esoteric) because he can understand it and very few others can.

How do you pronounce esoteric? ›

How To Pronounce 'ESOTERIC' | Ask Linda! | Pronunciation - YouTube

How does akaza technique work? ›

Akaza Blood Demon Art Explained! (Demon Slayer) - YouTube

What's rengoku's first name? ›

Kyojuro Rengoku (煉獄 杏寿郎, Kyojuro Rengoku) is a major protagonist in the 2016-2020 fantasy horror manga series Demon Slayer: Kimetsu no Yaiba and its 2019 anime television series adaption.

What does esoteric Buddhism teach? ›

Esoteric Buddhism is the mystical interpretation and practice of the belief system founded by the Buddha (known as Sakyamuni Buddha, l. c. 563 - c. 483 BCE). It is known by several names and is characterized by a personal relationship with a spirit guide or deity who leads one to enlightenment.

What does it mean if someone is esoteric? ›

esoteric, the quality of having an inner or secret meaning. This term and its correlative exoteric were first applied in the ancient Greek mysteries to those who were initiated (eso, “within”) and to those who were not (exo, “outside”), respectively.

What's the meaning of exoteric? ›

exoteric \adjective\ ek-suh-TAIR-ik. 1 a : suitable to be imparted to the public. b : belonging to the outer or less initiate circle. 2 : relating to the outside : external.

What are three synonyms for esoteric? ›

synonyms for esoteric
  • abstruse.
  • arcane.
  • mystical.
  • Delphic.
  • acroamatic.
  • cabalistic.
  • cryptic.
  • deep.

What is esoteric literature? ›

Western esotericism, also known as esotericism, esoterism, and sometimes the Western mystery tradition, is a term scholars use to categorise a wide range of loosely related ideas and movements that developed within Western society.

What is an example of esoteric? ›

The definition of esoteric is something only understood by a chosen group. An example of esoteric is pa++ern, an embroidery language. Intended for or understood by only a small group, especially one with specialized knowledge or interests. An esoteric philosophical doctrine.

How do you use esoteric? ›

How to use Esoteric in a sentence. The meaning was very esoteric in film, literature and art. Communicating love in a way neither had ever experienced, they converged in an esoteric dance in which the world fell away. He was avoiding the sense of making something too esoteric.

What is an example of esoteric knowledge? ›

Astrological beliefs, including supposed relationship between planets and select plants, are presented as esoteric knowledge.

What are esoteric subjects? ›

An esoteric subject is a subject that is known to a select group of people rather than the population at large.

What does esoteric mean in philosophy? ›

In the Oxford English Dictionary, esoteric is defined as follows: Of philosophical doctrines, treatises, modes of speech, etc.: designed for, or appropriate to, an inner life of advanced or privileged disciples; communi- cated to, or intelligible by, the initiated exclusively.

How do you pronounce esoteric UK? ›

Break 'esoteric' down into sounds: [ES] + [OH] + [TERR] + [IK] - say it out loud and exaggerate the sounds until you can consistently produce them.

What is the opposite of cognitive? ›

fallacious, misleading, sophistic. (or sophistical), specious.

What is a synonym for Mystic? ›

synonyms for mystic/mystical

abstruse. anagogic. arcane. cabalistic.

What is the synonym of the word occult? ›

(also eery), uncanny, weird.

What does esoteric Buddhism teach? ›

Esoteric Buddhism is the mystical interpretation and practice of the belief system founded by the Buddha (known as Sakyamuni Buddha, l. c. 563 - c. 483 BCE). It is known by several names and is characterized by a personal relationship with a spirit guide or deity who leads one to enlightenment.

How do you pronounce esoteric? ›

How To Pronounce 'ESOTERIC' | Ask Linda! | Pronunciation - YouTube

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