BOULDER 850
¥ 800,000 (1 unit, released in 2005)
Commentary
A monaural power amplifier developed as the first of the 800 series.
The output stage is 6-parallel push-pull configuration using bipolar transistor.
A toroidal transformer is used for the power supply section.
The housing is designed and manufactured in-house, and is manufactured at a computer-controlled machining center installed in-house.
Aluminum cut panels are used for the front and rear panels.
The chassis has a two stage structure, with the amplifier stage at the top and the transformer and other circuits at the bottom.
The input terminal is a balanced input.
Model Rating
| Type | Monaural power amplifier |
| Maximum power output | 200W (8 Ω, 4 Ω, 2 Ω) |
| THD & Noise | 0.002% (20 Hz to 20 kHz) 0.01%(20kHz) |
| Voltage gain | 26dB |
| Input impedance | Balanced : 50k Ω |
| External dimensions | Width 216x Height 188x Depth 387 mm |
| Weight | 19kg |