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Kondo Audio Note Gakuoh

Precisely delineates the magical moment between every fading note The sophisticated world of exquisite sound

1,256,000kr

Se alla betaltjänster:

KLARNA, DINTERO, PAYPAL, WASA

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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

MER INFORMATION HÄR

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.

Ytterligare information

Weight 550 kg
Specifications

Model GAKUOH PSE

Product 300B Parallel Single Ended monaural poweramplifier
Rated power 22W @1kHz, 5% THD
Frequency response 30Hz ~ 55kHz (+0dB, -3dB @1W)
Input / Impedance 1pc (RCA, unbalanced) / 100kΩ
Output 8Ω
Noise Less than 1mV
Vacuum tube 300B x2, 6072 x1, 5687 x2, GZ34 x1
Power consumption 160W
Dimension 280mm(W) 200mm(H) 460mm(D)
(excluding protrusions)
Weight 31kg

Model GAKUOH
Product 300B push-pull monaural poweramplifier
Rated power 30W @1kHz, 5% THD
Frequency response 15Hz ~ 100kHz (+0dB, -3dB @1W)
Input / Impedance 1pc (RCA, unbalanced) / 100kΩ
Output speaker 4Ω or 8Ω preset in the factory
Noise Less than 1mV
Vacuum tube 300B x2, 5687 x3, GZ34 x1
Power consumption 160W
Dimension 280mm(W) 200mm(H) 460mm(D)
(excluding protrusions)
Weight 31kg

Color

Black

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