KONDO AUDIO NOTE

KONDO
MELIUS
32W+32W EL34 P/P STEREO POWER AMPLIFIER

$ 319,000
In order to provide delicate details and high dynamic for wide variety of music, this unit is designed with great deliberation using famous Pentode EL34 in a new designed push-pull circuitry. Values of each part and current are set precisely so that tube power amplifier could drive modern speakers well.

Push-pull circuit further refined from Overture
The first stage and driver stage are direct coupled, and a new generation pure silver foil capacitors with vibration suppression are used for coupling with the output stage. Moreover, the low impedance design of the whole circuit is aimed the direct sound performance. The output stage continue to employ CCB (constant current bias circuit). The music signal is prevented from flowing into the bias adjustment VR, enabling pure signal transmission.

Optimized wiring
Internal wirings are skillfully arranged so that shortest paths and best performance are obtained. SSW (Silk Silver Wire) are used for internal wirings. Ls-41 are used for paths in which shielding are needed.

Super High Quality Parts
All parts were carefully chosen after massive hours of listening tests. Silver foil capacitors, silver lead resistors, SSW silk silver wires, Ls-41 shield cable, Audio Note custom made output transformers and power transformer. All CR part are carefully selected and arranged.
Specifications
Product EL34 Push-Pull stereo power amplifier
Model MELIUS
Rated Power 32W + 32W @1kHz, 1% THD
Frequency Response 6Hz ~ 110kHz (+0dB -3dB @ 1W)
Input / Impedance 2pairs (RCA, XLR, unbalanced) / 70kΩ
Output 4Ω, 8Ω
Noise lower than 0.5mV
Vacuum tube EL34 x4, 12BH7 x2, 6072 x2
Power consumption 180W
Dimension 438mm(W) 204mm(H) 369mm(D)
(excluding protrusions)
Weight 26kg
*Due to the characteristic of the vacuum tubes used, it takes around 15 minutes to reach nominal sound quality and performance level.

KAGURA2 i
50W PSE POWER AMPLIFIER/MONAURAL

$ 1,590,000
Kagura 211 parallel single ended monaural power amplifier has been accomplished by putting every know-how that Audio Note/Kondo created.
The world of elastic and coordinated sounds can be delineated only by analog amplifier, where music breathes of original sounds are brought back.
The new perspective flagship power amplifier is how Audio Note/Kondo would really like to be listened to by those who have been indulged in the deep charm of music.

Features

Circuit design is configured with 12AU7~6SN7 x2 for amplification and 6SN7 x2 (cathode follower) for the driver stage to powerfully drive the large-scaled transmitter 211 tube.
These circuits are independently powered by grand-scale, low ripple and low impedance power supply sections supporting high purity amplification stages.Further, in order to attain prime audio quality expected from Kagura, each part stage has been re-examined and newly developed.

Grand-Scale Power Supply Circuit

There are total of 3 power supply transformers that are employed; B power supply transformers above the rear section of the chassis, and amplifying heater transformers and rectifier heater transformers inside the chassis.Further, 4 choke coils are installed to form 3 system power supply circuits with 4 different voltages +/-200V, +450V, and +950V.Powerful and high grade power supply section with oil capacitors rated at 1000V withstand voltage, and newly developed cut-core type choke coils.In addition, two power cables come with one unit of Kagura due to the fact that main power supply and heater power supply are separated from AC inlet.

Modularized Units
By modularizing voltage amplifying section, the merits of manual wiring and shortening of paths have been realized. By placing 3 system decoupling capacitors quite near each module, high purity signal loops could be formed in each stage.
Compactly arranged 211 output tubes and the near heater peripheral section are placed at very near the amplification unit so that from the first stage tube to output tube base could be stowed in a compact space eventually minimizing the wiring travel to the utmost limit.The 211 heather circuit is mounted with large capacitors (40000uF x2) to minimize ripple elements while residual noise level could be attained quite low thanks to employing hum balancer circuit.

High Grade Parts
Between amplification stages we employed newly developed electrode oscillation proof silver foil capacitors contributing to the improvement of sound density.
Instead of conventionally used EI core choke coil, we have developed cut-core type anew for drastic improvement in sound quality natural and strain-free by having removed unpleasant signals.
Kagura's pure silver coiled output transformer handles output impedances of 4, 8 and 16Ω. The setting is preset for 4Ω and 8Ω for speaker impedance in the factory.

Specifications

Product
211 parallel single ended monaural poweramplifier

Model
Kagura2 i

Rated power
50W @1kHz, 5% THD

Frequency response
8Hz ~ 55kHz (+0dB, -3dB @1W)

Input / Impedance
RCA x1(unbalanced) / 70kΩ,
XLR x1(unbalanced, 2:HOT) / 70kΩ
*Exclusive use

Output
4Ω, 8Ω, 16Ω (2 outputs factory preset)

Noise
Less than 0.5mV

Vacuum tube
211 x2, 6SN7 x2, 12AU7 x1, GZ34 x4

Power consumption
270W

Dimension
320mm(W) 370mm(H) 558mm(D)
(excluding protrusions)

Weight
62kg

ONGAKU
27W+27W STEREO POWER AMPLIFIER

$ 829,000
1989, the year of the bright history of Audio Note.
Audio Note's ONGAKU was born this year, instantly attracted attentions from audiophile around the world.
Audio Note's vacuum tube amplifiers started shipping overseas. Reviewers from leading audio magazines, e.g. "Hi-Fi Choice", "Audiophile" from UK and "The Absolute Sound" from US, reported their surprises and appreciations about the good sound qualities which they had never heard of. Among them, ONGAKU which employed big size power tubes 211 in the amplification stage; stole the hearts of audio fans with her overwhelming expression of rich musical details.
ONGAKU's magic and its good comments are still spinning around the world without slowing down.
Audio Note's high reputation and good comments are building up on this solid platform.

Features
Circuit which fully utilize the merits of 211.
The best circuit designed to retain high linearity and low distortion characteristic of 211.
Silver winding output transformer to keep the graceful and dignity sound of 211.
High impedance of 12kΩ with multi-layer, multi-compartment structure.
Best routes and wiring by skillfull technician to secure the best quality.
Copper chassis which help improving sound extends and liveliness.

Original parts

Silver Output Transformers

In order to realize the best performance of output transformer, it is designed to a high impedance of 12kΩ with multi-layer, multi-compartment structure.Winding are all done by skillful technician hands using pure silver wires.It is one of the most important procedure to keep the graceful and dignity sound of 211.We also applied special insulating materials in considering its high voltage operation.

Silver Capacitors

Silver capacitor which use pure silver foil as electrode.It is specially designed to prevent the potential oscillation with the foil, which can easily generate muddy sound when lignal surge from low to high level. All silver foil capacitors are Audio Note hand made.

Original Silver wire "SSW"

All conductor materials are pure silver.In order to supress the unwanted vibrations, natural silk is used and twisted around the silver conductor.It works as an insulating layer between the silver wires and the exterior PVC jacket.

Specifications

Product
211 single ended stereo amplifier

Rated Power
27W + 27W @1kHz, 5% THD

Frequency Response
8Hz ~ 21kHz (+0dB, -3dB @1W)

Input / Impedance
4pairs (RCA, unbalanced) / 100kΩ

Output
speaker (8Ω), REC OUT 1pair

Noise
Less than 1mV

Vacuum tube
211 x2, 6072 x2, 5687 x2, GZ34 x4

Power consumption
270W

Dimension
284mm(W) 240mm(H) 550mm(D)
(excluding protrusions)

Weight
34kg

KONDO
GAKUOH II
20W 300B PSE POWER AMPLIFIER/MONAURAL

$ 859,000
The audio note 300B power amplifier has been reborn with the latest knowledge on traditional circuits.

Features
New Generation original OPT for optimized 300B bass extension and vocal fidelity
Improvements over classic 300B amplification circuit plus modern features
Dual GZ34 rectification and strengthened power supply design
New flagship silver signal capacitors and parts (applied also to Kagura, G-1000 and GE-10)

Circuit Configuration

Input stage is plate follower and direct connection cathode follower by 6072.Classic type phase inverter circuit is chosen for good balance of naturalness.300B power tubes are fully driven with low impedance by 6CG7 in parallel configuration.
By suppressing overall NFB to only 2 dB, a new level of dynamic and low distortion is achieved.Sound quality is also improved through adding high quality resistors in combination with the VR of hum balancing circuit.300B output stage is self-biasing circuit.This help owner to replace various kind of vintage 300B without stress.
Smart modular design and shortest wiring set good foundation for Gakuoh II's long durability with good sound.

Ideal Power Supply

High sound purity is obtained through independent rectification circuits for both amplification stage and output stage.Decoupling capacitors are installed close to each ripple filters to form clean signal loops.This design strongly reduced the inter-stage interference to minimum.
Using 2 pieces of rectifier tubes in parallel raise instantaneous current performance of the output stage.The rectifier tube is chosen with sound quality as prime concern.Independent power transformers are used to source clean high current to the heaters of the rectifier tubes.

High Grade Parts

Based on a full copper chassis, all premium grade parts are employed through listening tests.New design silver output transformers using in-house winding technique, Kagura generation silver signal capacitors, silver lead resistors, internal silver wiring materials SSW (silk silver wire), Ls-41 flagship interconnect, low vibration molded power transformer are all applied.All parts, including C and R, are placed at their optimized position.

Specifications

Product
300B Push-Pull Monaural PowerAmplifier

Model
Gakuoh II

Rated power
20W @1kHz, 5% THD

Frequency response
10Hz ~ 40kHz (+0dB, -3dB @1W)

Input / Impedance
RCA, XLR (unbalanced) / 70kΩ

Output
4Ω, 8Ω, 16Ω (2 outputs factory preset)

Noise
Less than 1mV

Vacuum tube
300B x2, 6CG7 x2, 6072 x1, GZ34 x2

Power consumption
120W

Dimension
294mm(W) 284mm(H) 485mm(D)
(excluding protrusions)

Weight
32kg

KONDO
SOUGA
8W+8W 2A3 PSE STEREO POWER AMPLIFIER

$ 429,000
Features
Newly developed driver circuit unleashed the full potential of 2A3 which had never been achieved.
High quality handcrafting with module style amplifier sections. Kondo original parts and silver wires are adopted.
Parallel single ended circuit to get the best of both sound quality and useful power.
Full copper chassis is used to realize lively and open sound.

Original Parts

Silver Output Transformers

Rich and direct sound is obtained with using pure silver winding and multi-layer, multi-compartment structure. Winding are all done by skillful technician hands using pure silver wires.

Silver Capacitors

Silver capacitor which use pure silver foil as electrode.It is specially designed to prevent the potential oscillation with the foil, which can easily generate muddy sound when lignal surge from low to high level.
All silver foil capacitors are Audio Note hand made.

Original Silver Wire "SSW"

All conductor materials are pure silver.In order to supress the unwanted vibrations, natural silk is used and twisted around the silver conductor.It works as an insulating layer between the silver wires and the exterior PVC jacket.

Specifications

Product
2A3 Parallel single ended stereo power amplifier

Rated Power
8W + 8W @1kHz, 5% THD

Frequency Response
8Hz ~ 35kHz (+0dB, -3dB @1W)

Input / Impedance
1pair (RCA, unbalanced) / 100kΩ

Output
speaker 4Ω or 8Ω preset in the factory

Noise
Less than 1mV

Vacuum tube
2A3 x4, 6072 x2, 12BH7 x2, 5U4GB x1

Power consumption
140W

Dimension
430mm(W) 233mm(H) 314mm(D)
(excluding protrusions)

Weight
34kg

KONDO
NEW OVERTURE II i
32W+32W EL34 P/P STEREOI NTEGRATED AMP

$ 279,000
A new Overture with substantial improvements
Blending the high power output of Pentode EL34, with Triode's iconic richness in musicality.
Fully unleashed the wildness and dynamic of music while having all micro details expressed with textures.
Audio Note's philosophy of an ideal integrated amplifier. A simple audio system of excellent balance. Capable of giving the best from details, dynamic and musicality.

New design guideline "Cleaner with more Triode Splendidness" was refined through extracting the knowledge we learned from Kagura researches and applications.

New output transformer was designed for higher sound quality. By introducing a 3rd winding exclusively for NFB and re-calculated feedback amount, a well balance of dynamic and low distortion is realized.
Power and sound quality co-exist created by circuit re-design and re-tuning most CR values.
Power supply section is heavily improved and re-layout for outstanding channel separation.
Improved version of KONDO original silver foil signal capacitors for highest reliability.
Design.
Specifications



Product
EL34 Push-Pull stereo integrated amplifier


Model
PM-2 i


Rated Power
32W + 32W @1kHz, 1% THD


Frequency Response
6Hz ~ 140kHz (+0dB -3dB @ 1W)


Input / Impedance
4pairs (RCA, unbalanced) / 50kΩ


Output
4Ω, 8Ω


Noise
lower than 0.5mV


Vacuum tube
EL34 x4, 12BH7 x2, 6072 x2


Power consumption
180W


Dimension
438mm(W) 201mm(H) 409mm(D)
(excluding protrusions)


Weight
26kg
*Due to the characteristic of the vacuum tubes used, it takes around 15 minutes to reach nominal sound quality and performance level.