JA30 MKII Power Amplifier
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This dual mono up to 45 watts in pure class A amplifier incorportes all the unique technical and sonic innovations which have propelled its predecessors into audio legend.
The MkII version allows the use of the KT150 new pentode tube.
The JA30, a pure class A 45 watt per side amplifier, is a very effective monoblock. Each tube is protected by a fuse and is self-biasing even when tubes are replaced, no adjustments are necessary (but the tubes have to be paired). Output tubes can be either 6550s or KT88s and the amps are designed to deliver full power at 15Hz, making for extraordinary bass.
When when switching from KT150 to another type of power tube such as : EL34, 6CA7, KT88, KT90, KT120 & 6550 a small modification has to be made inside the unit.
For its electronics, JADIS uses tubes of different brands and various origins, which have specific features.
Tubes represent a key factor of quality; it is for this reason that every batch is strictly analysed in order to select only the best components.
At first, they undergo a primary selection to make them endure several firing cycles (dilatation of materials), allowing the detection of bad air vacuum and mechanical defects (Fixation of electrodes and airtightness of the glass/metal junction).
After that, they are measured one by one to inspect their characteristics and make their appairage (union of parts which are functioning in pairs).
Our small-scale production method, added to many hours of listening, permit us to refine our selection, in order to reach to the optimal result.
In extremely good quality surgical stainless steel, the chassis is at the same time aesthetic and hard-wearing, allowing us to guarantee the permanence of our products.
The ultimate touch of refinement, the twenty-four gold-plated brass, suiting each of our creations, is also a mark of the JADIS stamp.
The output transformer
Main parts of the creation, the transformers are hand-made on a digital winding machine, following the basic principles born from the passion and research of André Calmettes. Inestimable expertise, and the cornerstone of the high-quality of its products, JADIS keeps its trade secret very carefully.
Stemmed from the world of high frequency electronics, the rules and techniques of manual cabling allow us to take full advantage of our equipment and contribute to the sound aesthetics of JADIS.
All Jadis products are made in France.
|Type||Monoblock power amplifier pure class A|
|Power||up to 45W Class-A|
|Bandwidth||20Hz to 46KHz|
|Number of blocks||2|
|Tubes list||4xKT88/KT120/6CA7/KT150, 2XECC82 / 2xECC83|
"The new Jadis JA30 MkIIs are not only emotionally engaging, they also pack a punch. The new MkII version brings several evolutionary upgrades offering enthusiasts an extremely musical and natural sound. "
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Our refund policy operates in a 30-day window - after this time we are unable to accept the product and cannot issue a refund. Don't worry, our products are hand picked from thousands of luxury brands to ensure you are only offered the best of the best so we doubt you'll need to consider this policy at all. If you are concerned about making the wrong decision when it comes to your purchase, please feel free to talk with our team of experts who can advise you on equipment based on your personal music taste, aesthetics, and the layout of your listening room. Still not convinced? Discuss the possibility of a loan (trial period) with our experts and hear the difference yourself.