PrimaLuna EVO 300 Tube Integrated Amplifier

Overview

The PrimaLuna EVO 300 is a vacuum tube integrated amplifier built around a push pull quartet of EL34 output tubes, producing 42 watts per channel with the flip of a switch between triode and ultralinear operation. Triode delivers that liquid, holographic midrange tube lovers chase, while ultralinear opens up bandwidth and grip for demanding passages. It is a genuinely versatile heart for a serious system.

What sets the EVO 300 apart is the engineering under the hood. Point to point wiring with premium Swiss wire, an ALPS Blue Velvet potentiometer, Takman resistors, potted toroidal power transformer, and wide bandwidth output transformers all speak to a build philosophy usually reserved for cost no object gear. Adaptive AutoBias keeps the tubes running in their sweet spot automatically, and the Bad Tube Indicator makes ownership refreshingly worry free.

Thoughtful connectivity rounds out the package with five RCA inputs, a home theater bypass, transformer coupled subwoofer output, tape out, and an all tube output transformer coupled headphone stage that ranks among the best in the world. Available in silver or black, the EVO 300 is a reference caliber tube integrated that pairs beautifully with high efficiency speakers.

Key Features

• EL34 Push Pull Power. Four EL34 output tubes in push pull deliver 42 watts per channel, enough to drive high efficiency speakers with room filling authority and that unmistakable EL34 character.
• Triode or Ultralinear at a Touch. Switch between the warmth and dimensionality of triode operation and the wider bandwidth and added grip of ultralinear, matching the amp to your music and speakers on the fly.
• Adaptive AutoBias. The amplifier continuously monitors and adjusts tube bias for optimal performance and long tube life. No meters, no screwdrivers, no guesswork.
• Bad Tube Indicator. If a tube fails, the amp enters protection mode instantly and a red LED lights in front of the tube that needs replacing. Swap it and keep listening, no soldering iron required.
• World Class Headphone Stage. An all tube, output transformer coupled headphone amplifier is built in, letting you enjoy triode or ultralinear listening with everything from Audeze to Hifiman to Sennheiser.
• Reference Grade Build. Point to point wiring with premium Swiss wire, ALPS Blue Velvet potentiometer, Takman resistors, AC Offset Killer, potted toroidal transformer, and wide bandwidth output transformers.
• Flexible Connectivity. Five RCA inputs, home theater bypass, tape out, transformer coupled subwoofer output, 4 and 8 ohm taps, and an optional moving magnet phono stage cover a real world system.

How the PrimaLuna EVO 300 Tube Integrated Amplifier Compares

PrimaLuna EVO 300 Tube vs Luxman L-505Z

The Luxman is a refined solid state integrated with high current drive and a polished, neutral presentation. The EVO 300 answers with tube midrange bloom and dimensionality, plus triode and ultralinear voicing options the Luxman cannot offer.

PrimaLuna EVO 300 Tube vs Yamaha A-S2200

Yamaha's flagship pairs classic styling with clean, controlled solid state power and meters. The EVO 300 trades that for the organic warmth and holographic staging of EL34 tubes and a superb built in tube headphone stage.

PrimaLuna EVO 300 Tube vs Advance Paris A12 APEX

The A12 APEX is a muscular hybrid with generous power and features. If you value the tactile, three dimensional character of a true all tube signal path over sheer wattage, the EVO 300 is the more emotionally engaging choice.

PrimaLuna EVO 300 Tube vs Parasound HALO HINT6 Integrated Amp Silver

The HINT6 is a do it all solid state integrated with a built in DAC and phono. The EVO 300 takes a purist tube route, rewarding high efficiency speakers with midrange magic and switchable triode or ultralinear operation.

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

The EVO 400 doubles the output tubes to eight EL34 and raises power to 70 watts per channel for greater headroom while keeping triode and ultralinear operation.

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

The EVO 200 is a more affordable-tier choice with four EL34 in ultralinear only, without triode switching, subwoofer outputs, or premium Swiss wiring.

Recommended Speakers

The EVO 300's 42 tube watts reward high efficiency loudspeakers, and Klipsch Heritage is the natural partner for that EL34 magic. Here are our favorite matches from the AEA lineup.

• Klipsch Forte IV: A high efficiency Heritage classic that comes alive on tube watts, delivering effortless dynamics and a big, lively sound that pairs beautifully with the EVO 300 in triode.
• Klipsch Heresy IV: Compact, sensitive, and dynamic, the Heresy IV lets the EVO 300 breathe with punch and immediacy, an ideal match for smaller and medium rooms.
• Klipsch Cornwall IV: With even greater sensitivity and scale, the Cornwall IV turns the EVO 300's modest wattage into room filling, full range sound with vivid presence.
• Klipsch La Scala AL6: An all horn design of extraordinary efficiency, the La Scala thrives on quality tube watts and reveals every nuance of the EVO 300's triode midrange.
• Klipsch RF-7 III: Sensitive and dynamic, the RF-7 III offers a more modern voice while still making the most of the EVO 300's EL34 warmth and drive.

Frequently Asked Questions

How much power does the EVO 300 produce?

It delivers 42 watts per channel from its push pull EL34 output tubes, which is plenty for high efficiency speakers in most rooms.

What output tubes does it use?

The EVO 300 uses four EL34 output tubes along with six 12AU7 tubes in the preamp and driver stages.

What is the difference between triode and ultralinear operation?

Triode offers warmth, midrange bloom, and holographic staging, while ultralinear adds bandwidth, dynamics, and grip. You can switch between them with the remote.

Do I have to manually bias the tubes?

No. Adaptive AutoBias continuously sets and holds optimal bias automatically, which simplifies ownership and extends tube life.

What happens if a tube fails?

The amplifier enters protection mode instantly to prevent damage, and a red Bad Tube Indicator LED lights in front of the failed tube so you know exactly which one to replace.

Can I use my own preferred tubes?

Yes, PrimaLuna designs its amps to be tube rolling friendly. Adaptive AutoBias accommodates a range of compatible tubes without manual adjustment.

Does the EVO 300 have a headphone output?

Yes, it includes an all tube, output transformer coupled headphone amplifier considered among the best in the world, with a quarter inch jack.

What headphones work well with it?

Owners pair it successfully with demanding models from Audeze, Hifiman, and Sennheiser, and you can listen in triode or ultralinear.

Can I add a subwoofer?

Yes, it offers a transformer coupled subwoofer output for both stereo and mono use, which helps integrate a sub cleanly with your main speakers.

Does it have a home theater bypass?

Yes, there is a home theater bypass input so you can integrate the EVO 300 into a surround system while preserving its role as a two channel amplifier.

Is there a phono stage?

An optional moving magnet phono stage is available so you can connect a turntable directly.

What speaker taps are provided?

It provides 4 and 8 ohm speaker taps, so you can match the amp to your speakers' impedance for best performance.

How many inputs does it have?

There are five stereo RCA inputs plus a dedicated stereo RCA home theater bypass and a tape output.

What finishes are available?

The EVO 300 is offered in silver and black.

How heavy is the amplifier?

It weighs 68.2 pounds, reflecting the substantial potted toroidal power transformer and wide bandwidth output transformers inside.

What are the dimensions?

It measures 15.2 inches wide, 8.1 inches high, and 15.9 inches deep, so allow ventilation clearance around and above it.

What kind of speakers pair best with 42 watts of tube power?

High efficiency designs shine here. Klipsch Heritage models in particular are a superb match for the EL34 voicing of the EVO 300.

Does it come with a remote control?

Yes, a full function remote is included, and it also controls the triode and ultralinear switching.

Is the EVO 300 hand built?

Yes, it uses point to point wiring with premium Swiss wire, Takman resistors, an ALPS Blue Velvet potentiometer, and an AC Offset Killer, reflecting reference grade construction.

Why buy from All Elite Audio?

All Elite Audio is an authorized PrimaLuna dealer in Maryland, so your EVO 300 arrives with full factory warranty and expert support. We help you match it to the right high efficiency speakers, cables, and source, and we stand behind every system we sell.