PrimaLuna
PrimaLuna EVO 100 Tube Power Amplifier | The Grid HiFi
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PrimaLuna EVO 100 Tube Power Amplifier | The Grid HiFi
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Overview
PrimaLuna EVO 100 Tube Power Amplifier
40 watts per channel. 82-watt monoblock capability. Classic EL34 amplification.
The PrimaLuna EVO 100 is a compact vacuum tube power amplifier designed for serious two-channel listening. Four EL34 output tubes deliver 40 watts per channel in stereo, while a simple conversion to monoblock operation provides 82 watts for systems requiring additional power.
PrimaLuna's Adaptive AutoBias continuously monitors the output tubes, eliminating manual bias adjustments and providing protection if a tube fails. Custom-wound transformers and hand-wired point-to-point circuitry complete an amplifier that combines traditional tube engineering with practical everyday ownership.
Key Features
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Stereo or monoblock: 40W × 2 in stereo or 82W in mono.
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Adaptive AutoBias: Automatically monitors and adjusts output tube bias.
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Bad Tube Indicator: Identifies a failed tube and activates protection circuitry.
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EL34 tube amplification: Four EL34 output tubes, two 12AX7 tubes, and two 12AU7 tubes.
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Tube flexibility: Supports several compatible output tube types, including KT88 and KT120. The EVO 100 is not KT150 compatible.
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Custom transformers: Potted toroidal power transformer and wide-bandwidth output transformers.
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Point-to-point wiring: Hand-wired signal path using heavy-gauge cable.
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RCA connectivity: Stereo RCA inputs with dedicated speaker impedance taps for stereo and mono operation.
Technical Specifications
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Specification |
PrimaLuna EVO 100 |
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Amplifier type |
Vacuum tube power amplifier |
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Stereo output power |
40W × 2 |
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Monoblock output power |
82W |
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Power rating conditions |
EL34 tubes, 8Ω, 1% THD |
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Operating mode |
Ultra-linear |
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Inputs |
Stereo RCA |
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Speaker outputs — stereo |
4Ω, 8Ω, 16Ω |
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Speaker outputs — mono |
2Ω, 4Ω, 8Ω |
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Frequency response |
12Hz–85kHz ±1dB |
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Extended frequency response |
10Hz–95kHz ±3dB |
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Total harmonic distortion |
Less than 0.1% at 1W; less than 2% at full power |
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Signal-to-noise ratio |
92dB stereo; 93dB mono |
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Input sensitivity |
880mV |
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Input impedance |
100kΩ |
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Standard tube complement |
2 × 12AX7, 2 × 12AU7, 4 × EL34 |
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Power consumption |
270W stereo; 280W mono |
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Dimensions (W × H × D) |
11 × 7.5 × 15.9 in. |
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Weight |
37.4 lb |
Build Your PrimaLuna System
Pair the EVO 100 with a compatible tube preamplifier and carefully matched loudspeakers. Start with a stereo amplifier and add a second EVO 100 for monoblock operation as your system evolves.
Explore PrimaLuna at The Grid HiFi. Our Houston team can help with component matching, tube selection, and complete two-channel system design.
FAQs
Please read our FAQs page to find out more.
Do you price match?
Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.
Do you offer free shipping?
Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.
Where is your showroom?
We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.
Can I buy online without visiting the showroom?
Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.
Do you offer financing?
Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.
Do you install systems as well as sell equipment?
Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.
Do you provide support after installation?
Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.