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Kondo Audio Note Japan GE-7i - the latest premium vacuum tube phono preamplifier

16.11.2024 08:00

Kondo Audio Note Japan has introduced the new GE-7i vacuum tube phono preamplifier. The manufacturer emphasizes that the new product is neither a simplified version of the GE-10 model, nor an improved version of the GE-1 phono preamplifier, but offers its own new solution in the field of ultimate correction of the signal from a vinyl record. In the NF type equalization circuit, the SRPP input stage is implemented on the ECC803S tube.

Due to the use of a parallel cathode follower on the 6072 tube at the output, the output impedance is reduced, which ensures accurate sound reproduction. Like the flagship GE-10, this model uses a shunt-type filament power supply circuit and a smaller power supply housing so that together with the phono preamplifier the width does not exceed the standard size of Hi-Fi components of 480 mm. The shunt-type filament power supply has been redesigned to meet new needs. The shunt type regulator circuit ensures that the filament voltage will not change within 5% of the power supply voltage fluctuation, making it an extremely stable power supply circuit.

Features of the Kondo Audio Note Japan GE-7i Phono Preamplifier:

  • NF type equalization system
  • Separate chassis with independent power supply
  • Separate phono preamplifier case and decoupling capacitors minimize the impact on the signal circuit
  • Using quality parts such as SSW (silk silver wire), silver foil capacitors, original power transformer and copper chassis.
  • Coupling capacitor and load resistor at the output for low-pass filtering without compromising sound quality.
  • Pure copper case.
  • Front panel with the same curved edges as the G-700i preamplifier

The Kondo Audio Note Japan GE-7i vacuum tube phono preamplifier incorporates high-quality original components such as a copper main chassis, pure silver foil capacitors, pure silver resistors, SSW wiring, silver shielded cables, silver-palladium plated RCA jacks, and zirconium tube pads. In addition, the circuit uses custom-made electrolytic capacitors, power transformers, and chokes.

Specifications

  • RIAA

    ±0.5 dB (30 Hz - 20 kHz, excluding LCF)

  • Gain

    38 dB

  • Input / Impedance

    2 pairs (RCA, unbalanced) / 47 kOhm

  • Output

    1 pair (RCA, unbalanced, load more than 20 kOhm)

  • Noise

    less than 1.5 mV

  • Tubes

    ECC803S x 2, 6072 x 4, 6CA4 x 1

  • Phono preamplifier dimensions (W x H x D)

    302 x 160 x 412 mm

  • Power supply dimensions (W x H x D)

    160 x 160 x 412 mm

  • Phono preamplifier weight

    13.5 kg

  • Power supply weight

    12 kg

  • Official site

    https://www.audionote.co.jp/en/products/pre_amplifier/ge-7i.html

Image source - https://www.audionote.co.jp/en/products/pre_amplifier/ge-7i.html