LUXMAN MQ-360
¥ 319,400 (released in October 1985)
Commentary
Bulb-tube type power amplifier.
In order to make full use of the attractiveness and real power of vacuum tubes, it operates in the class A range.
MQ-360 uses a self-bias method.
The driver circuit that drives the power stage employs a bi-triode 6CG7 that provides drive power with low impedance, and provides ample operation within the push-pull configuration of all stages.
The power supply is equipped with a high-capacity transformer to ensure high regulation even in the event of overcurrent, while also giving careful consideration to polarity control.
The output transformer uses an ultra-linear connection dedicated transformer that is ideal for a self-bias circuit. The high-frequency characteristics smoothly extending to 100 kHz and the distortion factor realize the sound quality unique to the tube bulb type.
The S. T. A. R. circuit is adopted with the idea that each circuit block does not interfere.
Model Rating
| Type | Bulb-tube power amplifier |
| Vacuum tube used | 6550Ax4 6CG7x2 12AU7Ax2 |
| Effective power | 40W + 40W (8 Ω, 1 kHz, simultaneous operation for both channels) |
| Total harmonic distortion factor | 0.2% or Less (1 kHz, 1W) 2.0% or Less (1 kHz, 40W) |
| Frequency characteristic | 10 Hz ~ 30000 Hz - Within 1 dB (1W) |
| Input Sensitivity / Impedance | 1.1V/100k Ω |
| Signal-to-noise ratio (IHF-A corrected) | 100 dB or more |
| Attachment | Input Level Set (Horizontal Interlocking Type) Line phase sensor |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 290W (Electrical Appliance and Material Control Law) |
| External dimensions | Width 434x Height 176x Depth 252 mm |
| Weight | 19kg |