MARK LEVINSON No29L
¥ 595,000 (released in 1990)
Commentary
A stereo power amplifier developed using the know-how obtained with No20.5L.
The power supply section uses a high-quality toroidal transformer with a rating of 320 VA per channel, and a high-end switching grade filter condenser with a total capacity of 60,000 μ F.
The filter capacitors from the input terminal to the input stage, the balance input stage, the voltage amplifier stage, the output stage and the power supply part are laid out on one board for each channel. The wire wiring through which the signal flows is only 26.7 cm (cross-sectional area 10 mm) from the output stage to the output terminal.2OFC) only, which suppresses deterioration due to interference between wires and excessive routing.
We have also adopted a new cooling system that thermally couples the heat sink of the power transistor from the base plate to the chassis.
The voltage amplifier stage and driver stage are always class A operation to control the output stage and suppress distortion. The output stage is class AB operation.
.JPG)
Model Rating
| Type | Stereo power amplifier |
| Circuit | Dual monaural configuration |
| Rated output | 175W + 175W (2 Ω) 100W + 100W (4 Ω) 50W + 50W (8 Ω) |
| Bridge connection output | 200W (8 Ω) |
| Input impedance | 50k Ω |
| Input sensitivity | 1 V (Rated Output) |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 100W (idling) 200W (8 Ω, at rated output) |
| External dimensions | Width 483x Height 175x Depth 370 mm |
| Weight | 19kg |