Here are some measurements of Argon 6340, the smaller version of 6350, measured here:
www.audiosciencereview.com
Argon speakers are developed and sold by the Danish retail chain Hifi Klubben (founded by Peter Lyngdorf). This model was discontinued in 2018. The retail price was ~95 USD/pair (996 SEK).
They look similar, but the drivers are different (smaller tweeter as well).
Well, that's not good.
Early reflections are also worse compared to 6350:
Horizontal directivity:
0-90 degrees, for comparison with Stereophile measurements:
Vertical directivity:
Near-field response:
All the problems at 4 kHz seem to be caused by a woofer resonance. The huge port resonance at 1.5 kHz doesn't line up with the 2 kHz peak though, but maybe it's still causing it?
One positive thing is that the distortion is quite low:
But still, worse than the 6350:
I listened to it while writing this, and it's quite bad to be honest. The funny thing is that it sounds completely different from it's bigger brother.
At ~3m distance, the 6350 sounds neutral, but perhaps a bit dull / has a lack of detail. It's good considering the price though.
At the same distance, the 6340 sounds very bright and hollow, like it had built-in loudness.
I made this EQ preset based on the estimated in-room response (Graphic EQ plugin for Foobar 2000). It's not perfect, but it sounds much better (not suitable for near-field listening):

Argon 6350 bookshelf speaker, Spinorama measurements
Here are measurements of the Argon 6350 bookshelf speaker. Argon speakers are developed and sold by the Danish retail chain Hifi Klubben (founded by Peter Lyngdorf). The retail price was ~131 USD/pair (1396 SEK) in 2014. I measured at 10 deg increments both horizontal and vertical, using a...

Argon speakers are developed and sold by the Danish retail chain Hifi Klubben (founded by Peter Lyngdorf). This model was discontinued in 2018. The retail price was ~95 USD/pair (996 SEK).
They look similar, but the drivers are different (smaller tweeter as well).
Well, that's not good.
Early reflections are also worse compared to 6350:
Horizontal directivity:
0-90 degrees, for comparison with Stereophile measurements:
Vertical directivity:
Near-field response:
All the problems at 4 kHz seem to be caused by a woofer resonance. The huge port resonance at 1.5 kHz doesn't line up with the 2 kHz peak though, but maybe it's still causing it?
One positive thing is that the distortion is quite low:
But still, worse than the 6350:
I listened to it while writing this, and it's quite bad to be honest. The funny thing is that it sounds completely different from it's bigger brother.
At ~3m distance, the 6350 sounds neutral, but perhaps a bit dull / has a lack of detail. It's good considering the price though.
At the same distance, the 6340 sounds very bright and hollow, like it had built-in loudness.
I made this EQ preset based on the estimated in-room response (Graphic EQ plugin for Foobar 2000). It's not perfect, but it sounds much better (not suitable for near-field listening):