Luxman KMQ-60 Tube Power Amplifier
RM3,600.00
1 in stock
This tube type stereo power amplifier is completed as an independent amplifier based on the main part of SQ38F.
NEC 50CA10 is used for the output tube as well as SQ38F.
The circuit configuration is based on the Mulard type. In order to take advantage of the characteristics of the circuit, a low internal resistance ball is used in the voltage amplification stage of the first stage to improve the high-frequency characteristics. In this section, 6267 is connected to a triode. In relation to this, a gain is obtained by using High Gm 6DT8 in the phase inversion stage, and NEC’s triode 50CA10 is used in the output stage as well as SQ38F.
A phase correction circuit is inserted on the secondary side of the output transformer to prevent the amplifier from becoming unstable due to the attenuation of the load (near no load) in the high frequency range where the impedance of the speaker increases.
In addition, in order to avoid the influence of impedance from the input of the control amplifier, etc., buffer resistors are inserted into the first stage grid, and the fluctuation of frequency characteristics caused by volume change is suppressed.
OY15 type is used for the output transformer.
The chassis has an aluminum hairline silver finish with an all-dark gray semi-gloss paint.
| Specification | Details |
|---|---|
| Continuous Output | 30W/30W (4, 8, 16 Ω) |
| Total Harmonic Distortion Factor | 0.1% (at 1W output) 0.3% (at maximum output) |
| Frequency Characteristic | 15 Hz to 60,000 Hz -1dB |
| Signal-to-Noise Ratio | 90 dB or more |
| Residual Noise | 0.7 mV or less |
| Damping Factor | Approximately 15 (1 kHz) |
| Load Impedance | 4 Ω, 8 Ω, 16 Ω (switch switching) |
| Vacuum Tubes (8 pcs) | 50CA10 : 4 6DT8/6AQ8 : 2 6267 : 2 |
| Semiconductors (5 pcs) | DS16A : 4 DS16C : 1 |
| External Dimensions | Width 410 x Height 160 x Depth 205 mm |
| Weight | 13.8 kg |
