RM Italy
RM Italy KL703 12V 500W Max 25-30 MHz Linear Amplifier
RM Italy KL703 12V 500W Max 25-30 MHz Linear Amplifier
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Quick Specs
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KL 703 12V Linear Amplifier | 25–30 MHz | High Power with RX Preamp & Cooling Fans
Boost your signal with confidence. The KL 703 is a heavy-duty 12V linear amplifier designed for serious radio operators who demand clean, high-output transmission across the 25–30 MHz range. Whether you're working the 10-meter amateur band or using export radios (where permitted), this amplifier delivers performance, control, and reliability.
⚠️ STOP: Critical Requirements
To prevent immediate damage to this amplifier and ensure warranty compliance, please verify your station meets these requirements:
- ☐ Input Power (Max 35W): I confirm my radio will NEVER exceed 35W input. (Warning: 100W radios can "spike" full power before ALC engages, which will destroy this amp).
- ☐ High-Current Power: I have a power supply capable of 30+ Amps continuous to prevent voltage sag and distortion. (50+ Amps if shared)
- ☐ Conservative Operation: I acknowledge the manufacturer does NOT recommend running at the 500W limit. I will operate at 250-400W for reliability.
- ☐ Tuned Antenna: My antenna system is tuned for 10/12M with an SWR below 1.5:1.
- ☐ Warranty Terms: I accept there is NO Canadian warranty. Manufacturer defects must be returned to RM Italy (in Italy) at my expense.
🔥 Key Features:
- ✅ Covers 25 – 30 MHz: Ideal for 10m amateur radio (check local regulations)
- ✅ Drive Power: 1 – 35 Watts: Wide input range for compatibility with most radios
- ✅ Selectable Output Power: 3-position power switch on front panel for flexible operation
- ✅ Built-In RX Preamplifier: Boosts incoming signal strength with electronic switching
- ✅ Dual Cooling Fans: Keeps your amp cool during long transmissions with active airflow
- ✅ All-Mode Operation: Perfect for AM, FM, SSB, and CW modes
⚙️ Technical Specifications:
| Frequency Range | 25 – 30 MHz (10M / 12M) |
| Input (Drive) Power | 1 – 35 Watts |
| Output Power |
3 selectable levels (dependent on drive) Max: 500W (RM Italy does not suggest running the amp this high) Nominal: 250-400W |
| Power Supply | 12V DC (30A or more recommended) |
| Cooling | Dual fans with aluminum heatsink |
| RX Preamp | Yes – front-panel switchable |
| Mode Support | AM, FM, SSB, CW |
| Connectors | SO-239 UHF (input/output) |
| Dimensions | Approx. 240 x 150 x 70 mm |
| Weight | Approx. 2.5 kg |
📦 What’s Included:
- 1x KL 703 12V Linear Amplifier
- User Manual
- Power Cable (may vary by supplier)
- Manufacturer’s Warranty (RM Italy is located in Italy)
🧠 Why Choose the KL 703?
The KL 703 is engineered for serious operators who want to maximize range, clarity, and signal strength. With adjustable power output, a receive signal booster, and built-in cooling, it's ready for the shack or mobile base.
⚠️ Note: This amplifier is intended for licensed & endorsed amateur radio operators. It is for use only in the 10M Amateur band. Please follow all applicable laws regarding power output and frequency usage in your country.
🇨🇦 Looking to Buy in Canada?
This product is available through Fleetwood Digital, a trusted Canadian source for amateur radio and CB equipment. Shop with confidence — no cross-border delays, no duties, and expert local support.
Please note, linear amplifiers require appropriate licensing to install and operate. These units are not designed for a 100% duty cycle. All units are fully tested and inspected before shipping; however there are no returns and a limited (Manufacturers) warranty applies. Setup and testing should only be performed by qualified individuals.
Description
KL 703 12V Linear Amplifier | 25–30 MHz | High Power with RX Preamp & Cooling Fans
Boost your signal with confidence. The KL 703 is a heavy-duty 12V linear amplifier designed for serious radio operators who demand clean, high-output transmission across the 25–30 MHz range. Whether you're working the 10-meter amateur band or using export radios (where permitted), this amplifier delivers performance, control, and reliability.
⚠️ STOP: Critical Requirements
To prevent immediate damage to this amplifier and ensure warranty compliance, please verify your station meets these requirements:
- ☐ Input Power (Max 35W): I confirm my radio will NEVER exceed 35W input. (Warning: 100W radios can "spike" full power before ALC engages, which will destroy this amp).
- ☐ High-Current Power: I have a power supply capable of 30+ Amps continuous to prevent voltage sag and distortion. (50+ Amps if shared)
- ☐ Conservative Operation: I acknowledge the manufacturer does NOT recommend running at the 500W limit. I will operate at 250-400W for reliability.
- ☐ Tuned Antenna: My antenna system is tuned for 10/12M with an SWR below 1.5:1.
- ☐ Warranty Terms: I accept there is NO Canadian warranty. Manufacturer defects must be returned to RM Italy (in Italy) at my expense.
🔥 Key Features:
- ✅ Covers 25 – 30 MHz: Ideal for 10m amateur radio (check local regulations)
- ✅ Drive Power: 1 – 35 Watts: Wide input range for compatibility with most radios
- ✅ Selectable Output Power: 3-position power switch on front panel for flexible operation
- ✅ Built-In RX Preamplifier: Boosts incoming signal strength with electronic switching
- ✅ Dual Cooling Fans: Keeps your amp cool during long transmissions with active airflow
- ✅ All-Mode Operation: Perfect for AM, FM, SSB, and CW modes
⚙️ Technical Specifications:
| Frequency Range | 25 – 30 MHz (10M / 12M) |
| Input (Drive) Power | 1 – 35 Watts |
| Output Power |
3 selectable levels (dependent on drive) Max: 500W (RM Italy does not suggest running the amp this high) Nominal: 250-400W |
| Power Supply | 12V DC (30A or more recommended) |
| Cooling | Dual fans with aluminum heatsink |
| RX Preamp | Yes – front-panel switchable |
| Mode Support | AM, FM, SSB, CW |
| Connectors | SO-239 UHF (input/output) |
| Dimensions | Approx. 240 x 150 x 70 mm |
| Weight | Approx. 2.5 kg |
📦 What’s Included:
- 1x KL 703 12V Linear Amplifier
- User Manual
- Power Cable (may vary by supplier)
- Manufacturer’s Warranty (RM Italy is located in Italy)
🧠 Why Choose the KL 703?
The KL 703 is engineered for serious operators who want to maximize range, clarity, and signal strength. With adjustable power output, a receive signal booster, and built-in cooling, it's ready for the shack or mobile base.
⚠️ Note: This amplifier is intended for licensed & endorsed amateur radio operators. It is for use only in the 10M Amateur band. Please follow all applicable laws regarding power output and frequency usage in your country.
🇨🇦 Looking to Buy in Canada?
This product is available through Fleetwood Digital, a trusted Canadian source for amateur radio and CB equipment. Shop with confidence — no cross-border delays, no duties, and expert local support.
Please note, linear amplifiers require appropriate licensing to install and operate. These units are not designed for a 100% duty cycle. All units are fully tested and inspected before shipping; however there are no returns and a limited (Manufacturers) warranty applies. Setup and testing should only be performed by qualified individuals.
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