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Jadis Electronics I70
For a long time, we had been thinking about developing a new reference that would combine compact design with increased performance. Then the KT170 tube arrived, giving the starting signal for the I-70 project.
This integrated amplifier is not only designed in the pure Jadis tradition, with point-to-point wiring and handmade transformers, but it is also the first to incorporate several features derived from Jadis monoblock technology.
From the power supply point of view, the power stage has a fully separate supply, making it totally independent. With the driver and power stages separated, one power stage is not influenced by the other, ensuring 100% available performance. The stabilized filament voltage also eliminates induced noise.
A huge power transformer has been designed to deliver dynamics and pulse power. Thanks to its completely new output transformer design, the I-70 operates in a single push-pull ultra-linear configuration with triple-load output, and is equipped with two KT170 tubes per channel.
The KT170 is a powerful tube, but we preferred to take advantage of its characteristics to reduce distortion rather than simply focusing on power. For that reason, we chose a different operating point than usual.
Dealers selling Jadis Electronics near you
Authorized dealers for Jadis Electronics I70
- Absolute Sounds — in-store — London, England, United Kingdom (website)
- Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
- AMPL’HIFI — in-store — Nîmes, Occitanie, France (website)
- Arizona Hi-Fi — in-store — Phoenix, Arizona, United States (website)
- Assai Audio — in-store — Centro, Comunidad de Madrid, Spain (website)
- Audio Absolute — in-store — Tambon Bang Khun Kong, Chang Wat Nonthaburi, Thailand (website)
- AUDIO EXCLUSIVE — in-store — Wels, Oberösterreich, Austria (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
- Audio Video Feel — online and in-store — Charenton-le-Pont, Île-de-France, France (website)
- AUDIO VIDEO PASSION — in-store — Perpignan, Occitanie, France (website)
and 32 more verified dealers
Jadis I70 — potent, musical Class A integrated
The Jadis I70 channels classic French valve craft into a 50W Class A integrated that prioritises musical engagement. Reviewers such as Alan Sircom, James Michael Hughes and Audiophilepure praise its combination of slam, speed and tonal refinement. The I70 delivers a fast, resolving and highly musical sound with exceptional imaging and a large, holographic soundstage, while bass weight and transient control belie its modest power. Build quality is superb — point-to-point wiring, hand‑wound transformers and a hefty chrome chassis — making it as much a statement piece as a performer. Ideal for listeners with efficient speakers who want a single-box, high-end tube experience. Limited modern connectivity and a hot, heavy footprint temper its universal appeal, but the sonic payoff justifies consideration.
Pros
- Exceptionally musical, natural tonal balance with immersive imaging and a large, holographic soundstage.
- Surprising dynamics and bass control for a 50W Class A tube amp—fast transient attack, slam and authoritative low end.
- First-rate build and finish: point-to-point wiring, hand‑wound transformers and premium chrome/gold hardware lend durability and presence.
- A fast, resolving presentation that avoids clichéd ‘soft’ tube coloration—engaging, detailed and musically involving.
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Cons
- Deliberately limited connectivity—no built‑in DAC, phono stage or balanced inputs, which reduces versatility in modern systems.
- Runs very hot and is physically heavy; high power consumption and a tube cage that traps heat may matter in smaller rooms.
- High input gain and modest nominal power mean it pairs best with efficient speakers; volume control range can feel compressed with very hot sources.
Sound Quality
93/100
Dynamics
92/100
Despite being a 50W Class A tube design, reviewers describe the I70 as gutsy, dynamic and fast — delivering impressive slam, control and headroom for its topology. Comments such as 'gutsy and dynamic', 'effortless, fluid' and 'weight and power of the lower frequencies' support strong dynamics relative to its Class A expectations.
Soundstage Imaging
94/100
Reviews repeatedly reference superb imaging, a large powerful soundstage and an uncanny sense of 'living souls' appearing in front of the listener. Phrases like 'sense of rightness about imaging' and the apparent scale that belies 50W point to excellent channel focus, depth and convincing holographic presentation.
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Build Quality
95/100
Build is described as extremely well made with point-to-point wiring, hand-wound transformers, heavy chassis and high-quality finishes (chrome stainless steel, gold-plated fixtures). Reviewers note high-end component selection and construction consistent with the price and brand pedigree.
Features Connectivity
83/100
Feature set is deliberately traditional: five unbalanced RCA line inputs, one throughput/bypass for recording/HT, two sets of speaker terminals (bi-wiring), and a remote. There is no built-in DAC, no phono stage and no balanced inputs, so connectivity is limited compared with modern all-in-one integrateds.
Value for Money
90/100
At roughly £11k+, reviewers acknowledge it is expensive but consistently say 'you get what you pay for' and indicate the sonic and build pedigree justify the price for buyers in this segment. Limited facilities are noted, but value sentiment is that the performance and craftsmanship make the price understandable.
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