PrimaLuna EVO 300 Tube Power Amplifier

Overview

The PrimaLuna EVO 300 Tube Power Amplifier brings the warmth and dimensionality of classic vacuum tube sound to a build that removes the usual fuss. Running four EL34 output tubes in push pull with six 12AU7 drivers, it delivers 44 watts per channel in stereo, and it switches to mono operation for 85 watts when you want more muscle behind a demanding pair of speakers.

What sets the EVO 300 apart is flexibility on the fly. A push of the supplied remote toggles between triode and ultralinear modes, letting you choose the fuller, easy to settle into voice of triode or the extra extension and dynamic punch of ultralinear, all without leaving your seat. Adaptive AutoBias keeps the tubes optimized automatically, and a Bad Tube Indicator lights the exact tube that needs attention, so ownership stays simple.

Inside is where PrimaLuna earns its reputation. Point to point wiring with premium Swiss wire, Takman resistors, wide bandwidth output transformers, and a potted toroidal power transformer all work together for a quiet, refined presentation. Available in silver or black, the EVO 300 is a serious tube power amplifier that we are proud to carry at All Elite Audio.

Key Features

• Triode or Ultralinear on Demand. Switch between triode and ultralinear modes from the supplied remote. Triode offers a warm, relaxed presentation while ultralinear adds top and bottom extension along with greater power and dynamic contrast.
• Stereo or Mono Switchable. Run the EVO 300 as a 44 watt per channel stereo amp, or flip it to mono for 85 watts to drive tougher loads or build a pair of monoblocks.
• EL34 Push Pull Design. Four EL34 output tubes paired with six 12AU7 drivers deliver the classic, musical character that has made the EL34 a longtime favorite among tube listeners.
• Adaptive AutoBias with Bad Tube Indicator. AutoBias continuously optimizes the output tubes for consistent performance and long tube life. If a tube fails, the amp enters protection mode and a red LED marks the tube to replace.
• Point to Point Wiring and Premium Parts. Hand wired point to point with premium Swiss wire and Takman resistors, avoiding the compromises of circuit board construction for a cleaner signal path.
• Custom Transformers. Wide bandwidth output transformers and a potted toroidal power transformer provide a quiet foundation with extended frequency response and low noise.
• Flexible Connectivity and Taps. Both RCA and XLR inputs in stereo or mono, with 4, 8, and 16 ohm taps in stereo and 2, 4, and 8 ohm taps in mono for careful speaker matching.

How the PrimaLuna EVO 300 Tube Power Amplifier Compares

PrimaLuna EVO 300 Tube vs Parasound HALO A31 Power Amp

The A31 is a solid state three channel amp with high current reserves. Where the EVO 300 offers tube warmth and triode/ultralinear voicing, the A31 leans toward power and grip for larger rooms and lower efficiency speakers.

PrimaLuna EVO 300 Tube vs Parasound JCM250 Monoblock

The JCM250 is a solid state monoblock approach for high current delivery. The EVO 300 achieves mono operation within a single chassis at 85 watts while trading raw wattage for the dimensionality and texture of vacuum tubes.

PrimaLuna EVO 300 Tube vs Advance Paris X-A600 Stereo Amplifier

The X-A600 is a high power solid state stereo amp for effortless drive. The EVO 300 is the choice when you want tube tonality and the on the fly flexibility of triode and ultralinear modes.

PrimaLuna EVO 300 Tube vs TEAC Audio AP-701

The AP-701 is a compact stereo power amp with switchable mono operation, similar in concept to the EVO 300. The PrimaLuna answers with an all tube EL34 signal path and remote triode/ultralinear switching.

PrimaLuna EVO 300 vs PrimaLuna EVO 400 (next step up)

The EVO 400 doubles the output tubes to eight EL34, delivering 70 watts per channel in stereo and 140 watts in mono for far greater headroom.

PrimaLuna EVO 300 vs PrimaLuna EVO 200 (next step down)

The EVO 200 is a more affordable-tier choice with RCA inputs only and ultralinear operation, without triode switching, XLR inputs, or premium Swiss wiring.

Recommended Speakers

The EVO 300 loves high efficiency speakers that let its EL34 tubes breathe. Klipsch Heritage models are the natural first choice for tube synergy, delivering effortless dynamics and rich tone with modest wattage. Here are our top pairings.

• Klipsch Cornwall IV: A benchmark tube match. The Cornwall IV is highly efficient and dynamic, letting the EVO 300 sound powerful and lively in triode or ultralinear.
• Klipsch Forte IV: The Forte IV pairs beautifully with the EVO 300, offering high efficiency and Heritage tone in a room friendly cabinet.
• Klipsch Heresy IV: A compact Heritage floorstander that thrives on low wattage. Its efficiency makes triode mode especially satisfying with acoustic and vocal material.
• Klipsch La Scala AL6: For those wanting big horn dynamics, the La Scala AL6 unlocks the full character of the EVO 300 with extraordinary immediacy and ease.
• Klipsch RF-7 III: A high efficiency Reference floorstander that delivers lively, dynamic sound with the EVO 300 for listeners who enjoy scale and punch.

Frequently Asked Questions

How much power does the EVO 300 produce?

It delivers 44 watts per channel in stereo and 85 watts in mono operation.

What output tubes does the EVO 300 use?

It uses four EL34 output tubes along with six 12AU7 driver tubes.

What is the difference between triode and ultralinear modes?

Triode offers a warmer, fuller, easy to settle into sound. Ultralinear adds more extension at the top and bottom, greater power, and more dynamic contrast. You can switch between them with the remote.

Can I switch modes without stopping the music?

Yes. The supplied remote toggles between triode and ultralinear on the fly, so you can compare instantly while you listen.

Can the EVO 300 run as a monoblock?

Yes. It is stereo or mono switchable, producing 85 watts in mono. You can use a pair for a monoblock configuration.

What is AutoBias?

Adaptive AutoBias continuously optimizes the bias of the output tubes for consistent performance and extended tube life, with no manual adjustment needed.

What happens if a tube fails?

The amp enters protection mode so no parts are damaged, and a red LED lights in front of the tube that needs replacing. You simply swap in a new tube and resume listening.

Do I need to solder to change tubes?

No. There is no soldering and no guesswork. The Bad Tube Indicator shows which tube to replace and AutoBias handles the rest.

What inputs does the EVO 300 have?

It offers both RCA and XLR inputs, each usable in stereo or mono configuration.

What speaker taps are available?

Stereo mode provides 4, 8, and 16 ohm taps, and mono mode provides 2, 4, and 8 ohm taps for careful speaker matching.

What is the input impedance?

The input impedance is 100 kohm, making it easy to pair with a wide range of preamplifiers.

How is the EVO 300 built internally?

It uses point to point wiring with premium Swiss wire, Takman resistors, wide bandwidth output transformers, and a potted toroidal power transformer.

What finishes are available?

The EVO 300 is available in silver or black.

How heavy is the EVO 300?

Each amplifier weighs 66 lbs, reflecting the substantial transformers and robust build.

What are the dimensions?

It measures 15.2 inches wide, 8.1 inches high, and 15.9 inches deep.

Can I roll different tubes in the EVO 300?

Yes. The EVO 300 is designed to be tube friendly, and AutoBias accommodates a range of compatible output tubes for those who enjoy experimenting with tube character.

Do I need a preamplifier with the EVO 300?

Yes. It is a power amplifier and requires a preamplifier or a source with a volume controlled output to feed its RCA or XLR inputs.

What kind of speakers pair best with the EVO 300?

High efficiency speakers make the most of its tube power. Klipsch Heritage models are an excellent match, and we can help you choose the right pairing.

Is the EVO 300 a good match for jazz and classical recordings?

Yes. The triode mode is especially rewarding on acoustic, jazz, and classical material, while ultralinear brings extra punch to rock and larger scale recordings.

Why buy from All Elite Audio?

All Elite Audio is an authorized PrimaLuna dealer in Maryland. We offer expert guidance on system matching, careful setup advice, and full factory warranty support, so you can buy your EVO 300 with confidence.