4O3A Signature Power Genius XXL Twin

The Power Genius XXL Twin amplifier is built with semiconductors and offers an output power of up to 3500 watts. This is achieved by using four MRF 1K50H LDMOS transistors with 48V operating voltage, which promises particularly good linearity and purity of the signal. The power supply of the PowerGenius XXL Twin amplifier is permanently installed, it processes a single-phase mains voltage of 90 to 250V AC and is therefore ideally equipped for international operation, for example with DX expeditions.

Depending on the requirements and layout of the radio station, this amplifier can operate either as two completely independent amplifiers (1500+W each) or as a single amplifier with a power of 3500W (combined) in SO2R configuration. The TWIN topology offers the user incredible flexibility.

The XXL Twin features the MEffA algorithm and the first TWIN topology that combines two independent amplifier modules in one.

The MEffA (Maximum Efficiency Algorithm) system controls efficiency depending on the output power. MEffA is a unique algorithm that adjusts the DC level in the PA to the envelope of the exciting RF to achieve the highest efficiency.

The PA is of course prepared for remote-controlled operation and equipped for the connection of one or two transceivers (SO2R contest operation). A variety of connections are available for this purpose – from the band data connection to Icom CI-V and the serial CAT interface to an Ethernet connection. FlexRadio transceivers in particular can be connected with minimal effort (nice and simple), but of course you can also use any other transceiver with the PA.

Operation of the Power Genius XXL Twin is made even easier by protective mechanisms that protect the power amplifier and the transceiver. The temperature is monitored, a warning is given if the SWR is too high, the power is reduced, and much more. A color LC display provides information about the current power and operating status. The only control element is the standby/operate button on the front, everything else is fully automatic. Nice and simple.

Extremely quiet cooling

A good amplifier needs a good cooling system. By using oversized fans that are controlled by software and depending on the temperature, the fan noise is reduced to a minimum.

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