YAMAHA GFD-1
* Built to order
¥ 1,200,000 (released in 1992)
Commentary
A dedicated drive amplifier designed and tuned only to make the ground floor speaker GF-1 sound completely.
With a 6-position line input and a 23-position Attenuator with a rotary switch, you can create a simple system by simply adding player equipment.
The GFD-1 GFD-1 adopts a power amplifier configuration to realize high voltage and low impedance transmission.
This can also be used as a pre-main amplifier.
Model Rating
| Type | GF drive amplifier |
| <When connected to GF-1> | |
| Operation | Pure grade A |
| Output Level / Impedance | 25V/0.012 Ω |
| Signal-to-noise ratio | 128dB |
| Power consumption | 60W |
| <When normal speaker is connected> | |
| Rated output | 100W + 100W (6 Ω) |
| Total harmonic distortion factor | 0.003% (6 Ω, 100W) |
| Power consumption | 240W (4 Ω) |
| <General> | |
| Input Sensitivity / Impedance | 1.4V/10k Ω |
| External dimensions | Body : Width 454x Height 180x Depth 490 mm Power Supply : W 350x H 180x D 196 mm |
| Weight | Body : 21 kg Power Supply : 17 kg |