Amplifiers GROM2K (often written as Grom2k) are powerful KV (short wave) amplifiers intended for radio amateur operation. They are designed for those who demand performance, reliability and robustness when working in difficult conditions.
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Purpose and characteristics
Grom2k are power amplifiers for KV band (1.8 to 30 MHz), suitable for amateur radio modes from CW and SSB to digital operations. Their main advantages are:
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high performance (typically up to 1 kW) — sufficient for most amateur activities, including DX connections on low bands;
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modern power transistors LDMOS — guaranteeing relatively high efficiency and better thermal stability;
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robust mechanical and electrical construction — ideal for daily and demanding use;
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secure operation — with protection against overload, overheating and poor antenna alignment.
The manufacturer's official website emphasizes that the Grom2k is designed for "demanding radio amateurs" who want to combine performance with long-term reliability.
Technical characteristics (standard parameters)
Detailed specifications may vary by specific model configuration, but typical parameters of this type of KV amplifier include:
| Parameter | GROM2K-600 | GROM2K-600 Plus | GROM2K-1200 | GROM2K-1200 Plus |
|---|---|---|---|---|
| Input power (max.) | 5–100 W | 5–100 W | 5–100 W | 5–100 W |
| Power Output (PEP) | 600 W | 600 W | 1200 W | 1200 W |
| Input impedance | 50 Ω | 50 Ω | 50 Ω | 50 Ω |
| Type of control system | Basic | Advanced | Basic | Advanced |
| Display size | 7″ color | 7″ color | 7″ color | 7″ color |
| Protection against high SWR | Yes | Yes | Yes | Yes |
| Automatic switching LPF bands | Yes | Yes | Yes | Yes |
| Remote control via USB | Nope | Yes | Nope | Yes |
| CAT interface | Nope | Yes | Nope | Yes |
| Remote control via Wi-Fi / LAN | Nope | Yes | Nope | Yes |
| Dimensions (W x H x D) | 295 × 165 × 280 mm | 295 × 165 × 280 mm | 295 × 165 × 280 mm | 295 × 165 × 280 mm |
| Weight | 7.8 kg | 7.8 kg | 8 kg | 8 kg |
| Supply voltage | 110–220 V / 50–60 Hz | 110–220 V / 50–60 Hz | 110–220 V / 50–60 Hz | 110–220 V / 50–60 Hz |
| Price | 1800 USD | 1900 USD | 2100 USD | 2200 USD |
Advantages and disadvantages
Advantages
✅ High power – up to ~1 kW, suitable for demanding connections
✅ Modern LDMOS transistors – good efficiency and linearity
✅ Stable operation – protections and robust construction
✅ Flexibility of use – from CW to SSB to digital modes
Disadvantages
❌ An amplifier with such performance requires reliable power supply (e.g. 50 V source)
❌ Greater weight and size than with smaller amplifiers
❌ Cooling and current consumption – needs adequate ventilation and power source
📌 Note
More detailed information on the manufacturer's website https://g2k.su/