PrimaLuna EVO 100 Tube Integrated Amplifier

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Colour

Black

Silver

Phono Stage

None

MM Phono Stage

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An all-tube integrated amplifier that puts 40 watts per channel into your speakers from four EL34 output tubes. The PrimaLuna EVO 100 is the smallest model in the EVO integrated range, with four inputs, a tube-driven headphone output and a slim remote.

It is built with point-to-point wiring, potted toroidal power transformers and PrimaLuna's Adaptive AutoBias, so there are no bias adjustments to make when you change tubes.

PrimaLuna builds the EVO 100 without an internal DAC or phono stage as standard, and says external units are the better route. This page also offers a version with an MM phono stage.

Power (ultra-linear)

40W per channel

Power (triode)

Ultra-linear only

Inputs

4 stereo RCA

Output tubes

4 x EL34

Headphones

6.3mm, tube-driven

Weight

18kg

PrimaLuna USA looks at the EVO 100 Integrated

Why you will love it

Built to be easy to own

PrimaLuna's Adaptive AutoBias monitors the tubes and adjusts bias in real time, out of the signal path. PrimaLuna says this removes the need for manual biasing, and the amplifier also has a high/low bias switch for choosing between EL34 and KT88 tubes.

If a power tube fails, the amplifier goes into protection mode and a red LED lights in front of the tube that needs replacing. PrimaLuna says you only replace that tube, with no matched sets required.

PrimaLuna EVO 100 Tube Integrated Amplifier in silver, shown from the front with the tube cage removed

Hand-wired signal path

The signal path is hand wired point to point with heavy-gauge cable. Inputs are chosen by sealed Fujitsu relays mounted at the rear, next to the input sockets, instead of a front-panel switch with long internal leads. Volume is set by a motorised ALPS Blue Velvet control.

Tube-driven headphone output

PrimaLuna says there is no separate chip amplifier for the headphone socket, so the headphone output uses the same tubes as the main circuit. The socket is a 6.3mm jack on the front panel.

Rear panel of the PrimaLuna EVO 100 Tube Integrated Amplifier showing inputs, speaker terminals and mains inlet

Connections and tube choice

It has four stereo RCA inputs, a tape output and 4 and 8 ohm speaker taps. There is no home theatre bypass or subwoofer output on this model. The EVO 100 has a slim remote.

PrimaLuna lists these output tube types as compatible: 6L6G, 6L6GC, 7581A, EL34, EL37, 6550, KT66, KT77, KT88, KT90 and KT120. It lists the EVO 100 as not KT150 compatible.

Is it right for you?

A great fit if you…

Want a tube amplifier that is simple to own and maintain
Have efficient bookshelf or floor-standing speakers
Listen to headphones as well as speakers
Like the idea of trying different power tubes

Worth knowing

It has no DAC. If you want digital inputs, add an external DAC such as the PrimaLuna EVO 100 Tube Digital Analogue Converter
There is no phono stage as standard. Choose the MM Phono Stage version, or add an external phono preamplifier such as the PrimaLuna EVO 100 Tube Phono Preamplifier
It has a slim remote, four inputs and no subwoofer output. The EVO 300 and EVO 400 add a full function remote, triode switching and a subwoofer output
At 40 watts per channel, check that your speakers' sensitivity and your room size suit it

Build your system

PrimaLuna builds the EVO range to work together, so you can start with this integrated and add matching components later.

Speakers: Pair with floor-standing speakers or bookshelf speakers; the 4 and 8 ohm taps suit most loudspeakers
Turntable: Add a turntables and the PrimaLuna EVO 100 Tube Phono Preamplifier, or choose the MM Phono Stage version
Digital: Add the PrimaLuna EVO 100 Tube Digital Analogue Converter for streaming and digital sources
Step up or down: Compare with the PrimaLuna EVO 200 Tube Integrated Amplifier in the same range
Headphones: Plug in headphones using the front 6.3mm socket

Specifications

Power and sound

Output power (ultra-linear, EL34)	40W per channel
Frequency response	10Hz to 32kHz, ±1dB
THD (AABB)	<0.2% at 1W, under 2% at rated power
S/N ratio	90dB
Input impedance	100kΩ
Input sensitivity (EL34)	260mV
Maximum gain (EL34)	37dB
Damping coefficient	4 (1kHz)

Connections

Inputs	4 pairs stereo RCA
Outputs	4 and 8 ohm speaker taps, tape out, 6.3mm headphone
Remote control	Slim

Tubes and design

Standard tube complement	4 x EL34, 2 x 12AX7, 2 x 12AU7
Power consumption (EL34)	270W
Finish	Black or silver, five-coat hand-rubbed finish
Dimensions (W × H × D)	28 × 19 × 40.5 cm
Weight	18kg (39.6lb)

Specifications from PrimaLuna, checked November 2026.

Questions people ask

Does it have a phono input?

There is no phono stage built in as standard. PrimaLuna lists an optional PhonoLogue EVO moving magnet phono stage as compatible, and this page has an MM Phono Stage version. For moving coil cartridges, or to choose your own phono stage, use an external unit such as the PrimaLuna EVO 100 Tube Phono Preamplifier.

Does it have a DAC?

No. PrimaLuna builds its integrated amplifiers without a DAC. Connect an external DAC to any line input, for example the PrimaLuna EVO 100 Tube Digital Analogue Converter.

Which tubes does it use?

It ships with 4 x EL34, 2 x 12AX7, 2 x 12AU7. PrimaLuna lists 6L6G, 6L6GC, 7581A, EL34, EL37, 6550, KT66, KT77, KT88, KT90 and KT120 as compatible output tubes. The EVO 100 is not KT150 compatible.

Do I need to adjust the bias when I change tubes?

PrimaLuna's Adaptive AutoBias sets bias automatically. The amplifier has a high/low bias switch so you can choose the setting for EL34 or KT88 tubes.

Can I use it with headphones?

Yes. There is a 6.3mm headphone socket on the front panel, driven by the amplifier's tube circuit rather than a separate chip.