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KONDO AUDIO Note G-70-i
High-end preamplifier.
Stereo line preamplifier
Frequency response: 10 Hz - 240 kHz (+0 dB, -3 dB, with 100 kΩ load)
Gain: 25 dB
Inputs: 4 pairs RCA (unbalanced) / Input impedance: 100 kΩ
Outputs: 2 pairs RCA (designed for loads greater than 20 kΩ)
Noise: Less than 0.15 mV
Tubes: 6072 × 2, 6X4 × 1
Power consumption: 21W
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Kondo Audio Note G-70-i Preamplifier: The Perfect Fusion of Classic and Modern
The Kondo Audio Note G-70-i is a reference preamplifier that masterfully balances the rich, warm sound of tube amplifiers with the technical precision of the finest solid-state models. Designed with meticulous component selection and high-level craftsmanship, this preamplifier not only delivers an elegant and refined sound but also meets the highest standards of high-fidelity audio.
Every element of the G-70-i has been optimized through extensive listening tests to ensure natural, effortless musical reproduction without artificial coloration. From its robust power supply to the innovative DC heater circuit, every detail has been designed to provide a pure, immersive sound free of auditory stress.
Thanks to its carefully designed topology and use of the highest-quality materials, the G-70-i offers the transparency and musicality of tube amplifiers, combined with the precision and stability of the best solid-state preamplifiers. This makes it an essential component of any high-end audio system.
Key Features
High-quality handcrafted construction, with a modular amplification section optimized in component layout and wiring.
Robust power supply with a large 700uF reservoir, utilizing a combination of three independent types of capacitors per channel, ensuring a natural, distortion-free musical soundstage.
New DC heater circuit, developed with premium components carefully selected through extensive listening tests.
Advanced Design & Circuitry
Design Philosophy
The Kondo Audio Note G-70-i preamplifier is designed to be the heart of a high-fidelity audio system. It not only meets the specifications of modern amplifiers but also focuses on delivering a refined, detailed, and musically engaging sound.
Minimalist and direct main circuit architecture, designed for low output impedance and maximum musical purity.
Simple yet effective configuration, with a plate follower directly coupled to a cathode follower, using 6072 tubes.
Optimized signal paths, with direct wiring on a modular board, reducing interference and improving sonic resolution.
Elite-grade components, including silk-covered SSW silver wire, silver-foil capacitors, custom-designed power transformers, and a copper chassis.
Optimized DC heater circuit, enhancing thermal stability and minimizing interference in the signal.
Exceptional sound quality, characterized by elegant, smooth reproduction with no artificial coloration.
Line Stage & Connectivity
The amplifier’s line stage section is carefully designed to minimize signal loop lengths, ensuring the cleanest possible transmission.
Direct wiring of components on a modular board, ensuring ultra-short signal paths.
Individual decoupling capacitors for the left and right channels, optimizing channel separation and reducing crosstalk.
Optimized circuit design to maintain excellent low-frequency performance down to 20 Hz, even when connected to solid-state amplifiers with low input impedance (20 kΩ).
High-Quality Components
The G-70-i is built with a meticulous selection of the highest-quality components to guarantee the best possible sonic reproduction:
Silver-lead and metal-film resistors, selected through extensive listening tests.
Silver-foil capacitors and custom-designed electrolytic capacitors.
SSW silk-covered silver wiring and LS-41 shielding, optimizing signal transmission without interference.
Exclusive power transformer, designed to reduce vibrations and maximize system stability.
High-quality RCA connectors, ensuring lossless signal transmission with no degradation.
Power Supply & Filtering Circuit
The Kondo Audio Note G-70-i features a carefully designed power supply to ensure stability and precision in energy delivery.
6X4 rectifier tube, ensuring clean and interference-free power supply.
Optimized power transformer, with a special focus on vibration reduction.
400μF ripple filter capacitors, strategically placed to improve current stability.
700uF reservoir per channel, consisting of three capacitor types (600μF + 100μF + 0.47μF), providing optimal tonal balance.
Meticulously selected power and filtering circuits, ensuring detailed and precise musical response.
Technical Specifications
Model: G-70-i
Type: Stereo line preamplifier
Frequency Response: 10 Hz - 240 kHz (+0 dB, -3 dB, with 100 kΩ load)
Gain: 25 dB
Inputs: 4 pairs RCA (unbalanced) / Input impedance: 100 kΩ
Outputs: 2 pairs RCA (designed for loads above 20 kΩ)
Noise Level: Less than 0.15 mV
Tubes: 6072 × 2, 6X4 × 1
Power Consumption: 21W
Dimensions: 303 mm (Width) × 160 mm (Height) × 408 mm (Depth)
Weight: 17.5 kg
A Preamplifier Without Compromise
The Kondo Audio Note G-70-i is a masterpiece of high-end audio, combining the warmth and natural sound of tubes with the technical precision of the most advanced preamplifiers. With its meticulous design, optimized circuitry, and the highest-quality component selection, it delivers an immersive, elegant, and absolutely faithful listening experience to the original recording.
This preamplifier is not just the central hub of a reference audio system—it redefines what is possible in high-fidelity sound reproduction.
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