Hello again to all.
Like all of you, I am very surprised, and not to say disappointed, by the very negative review, and in my opinion a little fast, even expeditious, that the French importer of Kennerton headphones, Pierre Paya, has just made on the JM Edition version of the Kennerton Gjallarhorn.
First of all, and you pointed it out, a bad implementation of this Kennerton Gjallarhorn headphones (bad adjustment), especially the JM Edition version which has a little less bass level than the standard version, can ruin the listening of the Gjallarhorn if a perfect seal of the pads is not ensured, with sufficient pressure which justifies, sometimes, and even more often for normal to small heads, tightening the clamping force of the headphones by bending the metal arms of the headband inwards, as indicated in the last review of this headphones.
A lack of pad sealing and/or insufficient clamping force, resulting in a drastic drop in the bass level (and the dynamics of the headphones), as well as a clear imbalance in the tonal balance with a medium taking over the bass.
On another side, and this has unfortunately already happened at least once to one of the members of this forum, one cannot totally exclude a defect of the tested earphones that would have badly withstood air transport (with drivers completely crushed by a pressure difference).
That said, starting from the hypothesis of a good implementation of this headphones, on the one hand, and the absence of defect of this headphones (possible) on the other hand, I still note some inconsistencies in the test of the Gjallarhorn JM Edition made by Pierre...
According to Pierre's evaluations, as much the unmodified Gjallarhorn GH 50 would be excellent, as much the modified version would be execrable and ruined by these modifications, to the point of preferring to this last version a Sennheiser HD660S headphones...
All this, for a question of "high efficiency" of the Gjallarhorn headphones which would not support any modification of the headphones according to a hypothesis put forward by Pierre.
What is curious in this story of "high efficiency" sacralized by Pierre, is that the Kennerton Thekk, which Pierre qualifies as the best headphones ever produced by Kennerton, has a much lower efficiency than the two Kennerton Gjallarhorn headphones (standard and JM Edition), and that the Magni V3 (which Pierre appreciates much less than the Gjallarhorn GH 50) has the same efficiency as the Gjallarhorn ...
So, double standards, as they say in France, concerning the evaluation of these different headphones?
This evaluation seems to me to be quite arbitrary.
Otherwise, if this "underestimation" of the Kennerton Gajallarhorn JM Edition were to be confirmed by Pierre, it would be a shame that the French cannot have access to this headphones, at least in a visible way in the catalog of the french importer of the Kennerton brand (where neither the headphones nor the price of the Kennerton Wodan, the JORD and the M12 Studio appear in this catalog, by the way ...).
So, will there be the possibility for French people to buy directly from Kennerton (on the internantional website) the Kennerton products that are not imported in France (and/or that do not appear on the importer's website)?
This is the question I ask Kennerton on this forum.