Beautiful. Dynamic.
Seeking colorful emotion

This phono amplifier achieves the highest class specifications through our middle-class, well-thought-out circuit configuration, and has the organic tone of the GE-1, but with the advanced reproducibility of the GE-10.
It is neither a downgrade of the GE-10 nor an upgrade of the GE-1, but has the expressive power appropriate for its class. The richly expanded tonal range brings out the pleasure of analog record playback to a new level.

Features

Equalizer circuit is NF type
Separated Chassis and Fully Independent Power Supply
Modularization of the phono amplifier section and decoupling capacitors minimize the signal loop
Large scale shunt type filament power supply circuit
Adopt quality parts such as SSW (silk silver wire), silver foil capacitors, original power transformer and copper chassis.
Coupling capacitor and load resistor switching in the output stage to form a low-cut filter without sacrificing sound quality
Pure copper chassis for open sound
Front panel with the same curved lines as the G-700

PHONO equalizer unit

The circuit is designed as a NF type, with an SRPP circuit (ECC803S) employed in the first stage. By using a parallel plate cathode follower output circuit (6072), the output impedance is reduced, ensuring faithful reproduction of the sound source. Additionally, meticulous sound tuning has been applied to achieve a vibrant and lively tone.

Power supply, the shunt heater circuit

Rectification tunes is 6CA4. The structure of the original power transformer was re-examined because of the higher load than GE-10. The space was secured by enlarging the cut core, and the combination of materials and thicknesses of the insulation paper and interlayer paper was optimized through numerous auditions. In addition, the vibration suppression treatment was also modified to maximize the power transformer's capability.
Like the flagship GE-10, this model uses a shunt-type heater power supply circuit and a smaller power supply housing, so that the size is no more than 480 mm when the products are placed side by side. The shunt-type heater power supply unit has been redesigned to match the current draw. The 6.3 VDC ignition and a group of capacitors eliminate ripple components, contributing to the reproduction of a generous sound field with no fluctuation. The shunt-type regulator circuit ensures that the heater voltage does not change within ±5% of the power supply voltage fluctuation, making it an ideal, extremely stable ignition circuit.

Loading impedance and low cut filter

After connecting to a preamplifier and select the matching value (3 values selectable) at GE-7's output loading impedance, a 20kΩ resultant impedance is preset. The output capacitor of GE-7 and this 20kΩ makes a low cut filter with no negative effect to sound quality. This filter reduce a subsonic moderately and helps keep the sound clean.

Ultra-high-quality parts

This equipment incorporates high-quality original components such as a copper main chassis, pure silver foil capacitors, pure silver lead resistors, SSW wiring, silver shielded cables, silver-palladium plated RCA jacks, and zirconia vacuum tube sockets. In addition, it utilizes custom-made electrolytic capacitors, power transformers, chokes, and other specially ordered parts, all of which are of the highest quality. Careful consideration has been given to the effective placement of carefully selected components throughout the design.

Power Cable

ACz-AVOCADO

Specifications


Product	Stereo NF type PHONO equalizer amplifier

Model	GE-7 i

RIAA Declination	±0.5dB (30Hz-20kHz, Excluding LCF)

Gain	38dB

Input / Impedance	2pairs (RCA, unbalanced) / 47kΩ

Output	1pair (RCA, unbalanced, over 20 kΩ load)

Noise	less than 1.5mV

Vacuum tube	ECC803S x2, 6072 x4, 6CA4 x1

Power consumption	46W

Dimension	Main unit 302mm(W) 160mm(H) 412mm(D) Power supply unit 160mm(W) 160mm(H) 412mm(D) (excluding protrusions)

Weight	Main unit 13.5kg Power supply unit 12kg

Beautiful. Dynamic. Seeking colorful emotion