A hybrid power amplifier that combines a valve stage with a MOSFET power stage. It is rated at more than 100 watts per channel into 8 ohms in stereo, and a mono function lets two amplifiers work as monoblocks.
The PrimaLuna EVO 300 Hybrid Power Amplifier builds on the EVO 300 Hybrid Integrated Amplifier, which came from a collaboration between PrimaLuna and Floyd Design, the solid-state design arm of Durob.
It has RCA and XLR inputs and uses six 12AU7 valves.
Why you will love it
Valves and MOSFETs
PrimaLuna says the EVO 300 Hybrid combines the warmth of tubes with the power of a MOSFET power amplifier. The design uses Junction FETs, hand-matched transistors and a double pair of MOSFETs, all powered by a generously sized power supply.
The tube section has separate high-voltage power supplies for each tube and channel.


Mono operation
Enable the mono function and two EVO 300 Hybrid Power Amplifiers work as monoblocks. PrimaLuna says this doubles the power output and improves channel separation and soundstage.
Mono ratings are more than 220 watts into 8 ohms and more than 300 watts into 4 ohms.
Components and construction
PrimaLuna lists its Silver Label tubes, Swiss DuRoch tinfoil capacitors and Japanese Takman resistors. Hard wiring, heavy-duty anti-resonant PCB material and thick copper tracks are used throughout.
The MOSFET section has high-power transformers and capacitors, factory-matched MOSFETs and a hand-made resonance-free output coil. Each power stage has protection circuits, and there are dual inrush protection circuits.

Is it right for you?
A great fit if you…
- Want a hybrid power amplifier for a separate preamplifier
- Need balanced XLR as well as RCA inputs
- May add a second amplifier later and run a pair in mono
- Like the idea of valve character with MOSFET power
Worth knowing
- It is a power amplifier, so you need a preamplifier for volume and source selection
- A remote is not listed for this model
Build your system
Pair it with a preamplifier, a source and speakers.
- Preamplifier: Add a PrimaLuna EVO 300 Tube Preamplifier from the same range
- Digital source: Connect a PrimaLuna EVO 100 Tube Digital Analogue Converter through your preamplifier
- Speakers: Choose floor-standing speakers or bookshelf speakers
- Go mono: Add a second PrimaLuna EVO 300 Hybrid Power Amplifier and enable the mono function
Specifications
Power and performance
| Power at 8 ohms, stereo | More than 100 W per channel (typical 115 W) |
|---|---|
| Power at 8 ohms, mono | More than 220 W (typical 245 W) |
| Power at 4 ohms, stereo | More than 150 W per channel (typical 160 W) |
| Power at 4 ohms, mono | More than 300 W (typical 303 W) |
| Frequency response | 10 Hz – 80 kHz ±3 dB |
| THD (AABB) | Under 0.2% at 100 W into 8 ohms (stereo); under 0.2% at 245 W into 8 ohms (mono) |
| Signal to noise | 105 dB (A-weighted) |
| Input impedance | 32 kΩ RCA, 49 kΩ XLR (stereo); 18 kΩ RCA, 50 kΩ XLR (mono) |
| Input sensitivity | 805 mV RCA, 901 mV XLR (stereo); 1330 mV RCA, 1340 mV XLR (mono) |
| Total gain | 30 dB (H), 24 dB (L) |
| Damping coefficient | 300 (stereo), 150 (mono) at 1 kHz |
| Power consumption | 104 W (no signal); 645 W at 4 ohms |
Connections and valves
| Inputs | 1 pair stereo RCA, 1 pair stereo XLR |
|---|---|
| Outputs | Stereo and mono output, trigger output |
| Valve complement | 6 x 12AU7 |
Size
| Dimensions (L × W × H) | 405 × 385 × 205 mm |
|---|---|
| Weight | 31 kg |
Specifications from PrimaLuna's international product page, checked November 2026.
Questions people ask
How much power does it make?
PrimaLuna lists more than 100 watts per channel into 8 ohms in stereo and more than 220 watts into 8 ohms in mono.
Can I run two as monoblocks?
Yes. Enable the mono function on each amplifier.
Does it have XLR inputs?
Yes. It has one pair of RCA and one pair of XLR inputs.
Do I need a preamplifier?
Yes. It has no source selection, so you add a preamplifier or other source with volume control.
Which finishes are available?
Black and silver.