A-311 M series are all monoblock single-ended power amplifiers. All of them use DHT (direct heated triode) power tubes, such as 300B, PX25, or AD1 as output vacuum tubes, with selection of the output tube type by customer at time of order.
Pure Class A power stage : 10W(300B), 6W(PX25), 4W(AD1)
Allnic’s DHT technology
Analogue power tube current monitoring meters
Exceptionally easy bias controls
Soft-start Circuitry
