47 Laboratory Gaincard needs to be used with Model 4700 Humpty Power Supply. Adding another Humpty Power Supply doubles the current capacity, but not output voltage, and makes it a complete mono block operation.
- Output power: 50W version : 50W+50W (8 ohms)
- Input impedance: 22k unbalanced only
- Attenuators: 12 steps for each channel
- Output on and off switches for each channel
- Dimensions: W70 x H40 x D100 mm
- Shipped configured by 47 Labs to destination voltage requirement (no step-down transformer necessary)