RM Italy
RM Italy KL703 12V 500W Max 25-30 MHz Linear Amplifier
RM Italy KL703 12V 500W Max 25-30 MHz Linear Amplifier
Couldn't load pickup availability
Why Buy?
Why Buy?
Not quite sure if this is right for you? Contact Us for expert advice!
Quick Specs
Quick Specs
Scoll down for more information about this item.
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.
Purchase With Confidence
Questions & Answers
Have a Question?
Be the first to ask a question about this.