GRANT LUMLEY GL-50A
¥ 398,000 (released in 1980)
Commentary
This is a stereo power amplifier from Grand Ramray Inc. in England, which started under the close relationship with The M-O Valve Company which is famous as a vacuum tube manufacturer.
KT-77 of "Gold Lion" brand made by M-O Valve Company is used for the output tube.
Class AB1 push-pull configuration with ultra-linear connection and fixed bias system.
Model Rating
Type | Stereo power amplifier |
Effective power | 50W + 50W (8 Ω) |
Output bandwidth | 20 Hz to 25 kHz |
Input sensitivity | 1.0V |
Input impedance | 100k Ω |
Signal-to-noise ratio | 78 dB or more |
Vacuum tube used | ECC82 : 4 KT-77 : 4 |
Pwer | 110 VAC, 50Hz/60Hz |
External dimensions | Width 484x Height 200x Depth 258 mm |
Weight | 16.5kg |