Maiko One unit is made up of 1 Pre-amp module, 2 TR Power Amp and 1 LV Power Supply module giving 2x80 watts. Plus cabinet accessories.

Maiko One (Pure class A ) unit as shown :


Maiko One 'Pure class A' schematic :


Specification :

Rated output 2 x 50 watts class A with 8 ohm load at 0.005% distortion.
Max. output 2 x 80 watts class AB with 8 ohm at 0.01% distortion.
Freq. response 5 Hz to 50 kHz at 0 to -0.5dB ; 5 Hz to 100 kHz 0 to -3dB.
Total harm. dist. 0.005% at 1 kHz 1 watt with 8 ohm load.
Input sensitivity 150 mv at 50 watt class A output power.
Slew rate 35 volt per uS
Damping factor 250 under class A operation.
Input impedance 10 kilo ohm / 100 PF.
Power amp Two independent power amp module block.
Preamp two preamp channel on one board.
Output protect fused with DC output unbalance sensing protection.
Heat sink temp 55 degree C.
Chasis size 40 cm L x 11 cm H x 38 cm W; wt. 22 kg.


Maiko One... 'Pure Class A' unit feature :

We integrated our Maiko's assembled modules: a preamp, two TR Power Amp, a LV power supply and together with all necessary components to form this complete unit. The Maiko One... "Pure Class A".

The pre-amp : Burr Brown best audio IC was installed in this module. Cascade votage regulation design was applied in in the circuitry. The pre-amp is an adaptor between different level signal source and the power amp module.

The Power amp:.... all stages in the circuitry are biased at the "Class A" operation. All transistor pairs used in the input differential stage are matched and mechanically bonded. The complementay power transistors are selectively picked with cross checked to ensure symmetrical amplification. Each stage of this circuit is designed with its own feedback together with the system feedback.

The Power Supply :...2x22,000 uF Audio grade Capacitos by Nova were installed. The IC provided power interrupt function by sensing the amount of output offset voltage. It also provided time delay on for speaker connection.

The cabinet :..... A 300 watts Xformer was solidly mounted. Strong chassis cabinent and nice front panel were used . All inputs and speaker terminals are silver plated. The double ganged volume and the balance controls are Japanese made by Alps.

Maiko One unit weighs 22 Kg, thus postage is excluded...... US$800.