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FLEX LINEAR AMPLIFIER 3 Way
SKU Part Number:
FLEX-POWERGENIUS-3WAY
4O3A Power Genius XL 3X1 HF/6M Amplifiers
4O3A Power Genius XL 3X1 HF/6M Amplifiers are solid-state amplifiers capable of delivering 1500W+...
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£5,299.96
Availability: In stock

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Call 0345 2300 5994O3A Power Genius XL 3X1 HF/6M Amplifiers
4O3A Power Genius XL 3X1 HF/6M Amplifiers are solid-state amplifiers capable of delivering 1500W+ output across the 160–6M amateur bands, engineered for high-performance amateur radio use. The PGXL 3X1 uses dual NXP MRF1K50H LDMOS transistors, each rated for 1.5 kW, providing high headroom, low IMD, and clean signal output.
The Power Genius XL 3x1 features a 3-to-1 antenna switching module, allowing you to connect three antennas to a single radio. As a result, the software interface differs slightly to accommodate this functionality. The integrated MEffA™ algorithm dynamically adjusts DC voltage for optimal efficiency. Additional features include fast SWR protection, advanced thermal management, and seamless integration with FlexRadio systems via SmartSDR. They also support third-party radios through Ethernet, RS232, CI-V, and BCD interfaces.
Key Features
- 3-to-1 Antenna Switching Module: Connect up to three antennas to a single radio.
- MEffA™ Technology: Proprietary algorithm optimises amplifier efficiency in real time by matching DC voltage to the RF signal envelope.
- Smart Integration & Remote Control: Seamlessly integrates with FlexRadio systems and supports remote operation via SmartSDR, Windows, and Android apps.
Additional Features and Specifications
- Frequency Range: 1.8 MHz to 54 MHz (HF + 6m)
- Power Output: 1500W (legal limit), 2000W capable
- Exciter Drive Level: Up to 70W for 1500W on 160–10M, 100W on 6M
- Amplifier Type: Solid-state
- Drive Transistors: Dual LDMOS NXP MRF1K50H
- CAT, Band decoder, LAN interface: For operation with other exciters
- Antenna Impedance: 50-Ohm unbalanced
- Antenna Outputs: (3) UHF female SO-239
- Transceiver Input: (1) UHF female SO-239
- Efficiency System: MEffA™ (Maximum Efficiency Algorithm)
- Duplexed Filters: Maximise harmonic suppression and efficiency
- Cooling: Thermostatically controlled smart fans with high-efficiency heatsink
- Automatic Power Control (APC): Ultra-fast SWR protection (<1 µs), over-temp, over-voltage, over-current
- Control Interfaces: Ethernet (LAN), RS232, CI-V, BCD, frequency counter
- Remote Operation: SmartSDR for Windows, Maestro, Android app
- Display: Large touchscreen for local control and future feature upgrades
- Integration: Full compatibility with FLEX-6000/8000 series and Tuner Genius XL
- Form Factor: 3U rack-mountable chassis
- Dimensions: 14.1 x 6.0 x 20.0 in (35.7 x 15.25 x 50.8 cm)
- Weight: 37.48 lbs (17 kg)
- Operating Temp: −13° to 104°F (−25°C to +40°C)
Electrical
- Input Voltage: 90–250 VAC, 50/60 Hz*
- Power Supply: Internal modular/switching
- Max A/C Current: 15A @ 220 VAC or 120 VAC
*220 VAC supply and 20A minimum required for full power. Maximum of ~750W when using 180 VAC or less.
Specifications
| Brand | 4O3A |
| Manufacturer's Part Number | PGXL-3WAY |
| Part Type | Amplifiers |
| Product Line | 4O3A Power Genius XL 3X1 HF/6M Amplifiers |
| DXE Part Number | O3A-PGXL-3WAY |
| Line Cord NEMA Plug | No USA AC plug provided |
| Amplifier Type | Solid state |
| Amplifier Band Coverage | 160–6 metres |
| Amplifier Power Output PEP | 1,500+ watts |
| Amplifier Input Power | 100 watts, maximum |
| Amplifier Supply Voltage | 90–250 VAC |
| External Power Supply | No |
| Amplifier Width | 14.100 in. |
| Amplifier Height | 6.000 in. |
| Amplifier Depth | 20.000 in. |
| Amplifier Weight | 37.48 lbs. |
| Quantity | Sold individually |
| Notes | 3X1 model - connect up to 3 antennas to 1 transceiver |
4O3A Power Genius XL 3X1 HF/6M Amplifier
The 4O3A Power Genius XL 3X1 is a next-generation solid-state amplifier built for serious amateur operators who demand high performance, reliability, and flexibility. Delivering 1500W+ output across 160-6M, it’s powered by dual NXP MRF1K50H LDMOS transistors, each capable of 1.5kW, ensuring headroom, low IMD, and a clean, distortion-free signal.
What sets the 3X1 model apart is its integrated 3-to-1 antenna switching module, allowing you to connect up to three antennas to a single radio without additional hardware. Combined with its advanced MEffA™ Maximum Efficiency Algorithm, the PGXL intelligently adapts DC voltage in real time to match the RF signal envelope - maximising efficiency and reducing heat.
Designed for seamless integration with FlexRadio systems, the PGXL also works with a wide range of third-party radios via Ethernet, RS232, CI-V, and BCD interfaces. Remote operation is supported through SmartSDR, Windows, Maestro, and Android apps, making it ideal for both local and remote station setups.
With fast SWR protection (<1µs response), advanced thermal management, and a robust 3U rack-mountable design, the Power Genius XL 3X1 is built to run hard while staying cool and reliable.
Key Features
-
1500W+ solid-state output on 160-6M (2000W capable)
-
3-to-1 antenna switching - connect up to three antennas to one transceiver
-
MEffA™ Algorithm - real-time voltage optimisation for maximum efficiency
-
Dual NXP MRF1K50H LDMOS transistors - each rated at 1.5kW
-
Fast protection systems - SWR, over-temp, over-voltage, over-current
-
Seamless FlexRadio integration with SmartSDR, Tuner Genius XL, Maestro
-
Third-party radio support via CAT, RS232, CI-V, BCD, LAN
-
Remote operation from Windows, Android, and Ethernet-connected devices
-
Large touchscreen display for intuitive local control and firmware upgrades
Technical Specifications
-
Frequency Range: 1.8–54 MHz (HF + 6m)
-
Power Output: 1500W (legal limit) / 2000W capable
-
Drive Power: Up to 70W (160-10M), 100W (6M)
-
Impedance: 50Ω unbalanced
-
Inputs/Outputs: 1x SO-239 input, 3x SO-239 outputs
-
Cooling: Smart thermostatically controlled fans with high-efficiency heatsink
-
Form Factor: 3U rackmount chassis
-
Dimensions: 14.1 x 6.0 x 20.0 in (35.7 x 15.25 x 50.8 cm)
-
Weight: 37.5 lbs (17 kg)
-
Supply Voltage: 90–250 VAC, 50/60 Hz
-
Max Current: 15A @ 220V AC (20A recommended for full power)
The 4O3A Power Genius XL 3X1 isn’t just another amplifier - it’s a powerhouse designed for demanding DXers, contesters, and operators who want effortless performance with rock-solid reliability.
Shipping:
We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.
Returns:
If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:
Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.
Warranty Terms and Conditions
Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.
For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.
International Warranty information
Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]


