Audio Database
776

* Wood case (oak) is optional.

Commentary

A preamplifier with a unique design.

We are committed to the concept of straight line and seek to minimize the signal path and connector.
In addition, by limiting the NF amount at 20 Hz to 10 dB or less, excellent characteristics of -80dB or less noise level are realized while minimizing dynamic distortion.

The power supply uses a battery drive system and is completely disconnected from the AC line when music is played to reduce noise.

The panel and frame are made of aluminum die-cast to eliminate the effect of vibration on sound.

The parts such as semiconductors are made of military-grade materials that have been carefully checked for quality one by one.

The equalizer circuit is designed to select between MC cartridge compatible specifications and MM cartridge compatible specifications.
It is also possible to change the specifications later by replacing the circuit board.

There are 2 variations of the finish of the exterior, black and hammer tone.
In addition, the wood case was sold separately as an option, and there were 3 types, walnut, rose wood and oak.

Model Rating
Type Control amplifier
Input sensitivity Phono MM:2mV
Phono MC:0.2mV
Line:100mV
Input Overload (1 khz) Phono MM:150mV
Phono MC:15mV
Input impedance Phono MM : 47k Ω
Phono MC : 100 Ω
SN ratio (Phono : IFF-A weight, Line : CCIR weight) Phono MM:80dB
Phono MC:74dB
Line:95dB
Volume control accuracy Channel tracking within ± 0.2 dB
(0 dB ~ -70dB)
THD 0.5% or Less (20 Hz to 20 kHz)
IMD 0.5% or Less (60 Hz : 7 kHz = 4 : 1)
TIM Below the measurement limit
Frequency characteristic Phono : 20 Hz to 20 kHz ± 0.2 dB
10 Hz to 50 kHz -3dB
Line : 20 Hz to 20 kHz -0.2 dB
External dimensions Width 443x Height 94x Depth 321 mm
Weight 15.4kg
Sold Separately MC/MM each board (1 pair, ¥ 120,000)
Wooden case (¥ 70,000)