PA34B4 80W
PA34B4 is a monoblock amplifier with 80W output power. The circuit is based on the well known PA12 but modified in order to drive 4 output tubes. As the current drive capacity is twice compared to PA12, PA34 can be used to drive less efficient speakers.
The amplifier is built on a large PCB except for critical parts that are built using so called Point to Point, (PtP) technology, ceramic solder supports are used that can withstand 5kV. The chassis is made of 10mm aluminium which gives extraordinary mechanical stability and completely remove vibration induced noise.
The PA34B4 version is equipped with an automatic bias calibrator that eliminate any need for manual adjustment
Performance
| Output power | 80W in 8 ohm at less than 1% distortion 60W in 4 ohm at less than 1% distortion |
| Distortion at 2W | < 0.01% |
| Distortion at 25W | < 0.1% |
| Frequency response | 5 - 100kHz - 1dB |
| Power bandwidth | 10 - 100kHz - 1dB |
| Rise time | < 0.5us |
| Hum and noise | < -100dBA |
| Output impedance | Factory selectable, 0,2 - 1,5ohm |
| Input connectors | RCA phono + XLR |
| Dimensions | 275 x 335 x 400 mm, (W x H x D) |
| Weight | 19kg |
