I'm a bit perplexed. The F208 speakers are much better than the F12 speakers by a wide margin. The perplexing part is why? It is obvious in 30 seconds or less of listening to them. The F12 is a good speaker, far better than some costing twice as much in my own sighted uncontrolled listening comparisons.
In similarly uncontrolled listening, the F208 sounds much cleaner like a fuzzyness I never noticed surrounded the F12. The F208 also engaged the low end of my listening room a bit differently when positioned in the same spot as the F12. The F208 had a bit of an upper bass dip followed by much more bass firmness below 50 hz.
The F12 did imo have a bit of a hooded or capped off quality to the treble. What was there was good, but it seemed as if it didn't really quite respond all the way to the top. The F208 has none of that sounding clean, extended and airy in comparison. Worth noting I'm old enough my hearing doesn't go all the way to the top itself. One of my friends after hearing the F208 a few minutes said he was impressed with how open and clean it sounded all the way around especially in the treble.
So sounding like one of the high end audio wags, the F208 is cleaner, more transparent, more dynamic and has a much more cohesive quality top to bottom (excepting that upper bass dip which repositioning helped with).
I probably should take some time and do some detailed in room measurements to see what stands out. I've just enjoyed listening to them tremendously since getting them which reduces my motivation for investigating at the moment.
If there is any interest and he isn't overwhelmed I might take one to HardisJ for measuring on his Klippel. I don't live a tremendously far distance from him. It would be nice to know the spin-o-rama of the F12 to compare to the F208. It maybe all of this is due to the very slight uneven response of the F12 vs the F208. The F208 in general has one of the better spins Amir has come across thus far.
No doubt F208 is more capable speaker than F12, so let's try to raise the bar higher for it.
As a proud owner of this excellent speakers you may find this comparison interesting:
Red curve is Estimated in-Room response of F208 as measured/calculated by Amir, and green is the same curve from the same author but belonging to F328Be.
Similarity in response above 200Hz is astonishing, wouldn' you agree?
Now, for the difference in response below 200Hz it would be interesting to hear @amirm comment as probably something has changed in the way he measured each oh these speakers.
For the comparison, here is official spec of the LF extension from the manufacturer site:
F208 LF specs:
Low-frequency extension | 24Hz (-10dB); 26Hz (-6dB); 35Hz (-3dB) |
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F328Be LF specs:
Low Frequency Extension | -10dB@23Hz, -6dB@27 Hz, -3dB@31Hz |
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