Actually we are using both.
Is it to reduce hiss that you use also passive attenuation at the tweeter?
Actually we are using both.
Is it to reduce hiss that you use also passive attenuation at the tweeter?
@roland{at}GGNTKT , could you take a look at my previous post (#70) by any chance?
Will these be 'built-to-order' or will there be the option of auditioning them in-home eventually? Seems like a very interesting concept and while I'm intrigued, in this price range I'd prefer to hear (and measure) the benefits compmared to a 'normal' speaker for myself, in my own room, before making a commitment. From the preliminary measurements it looks like it will be a very nice loudspeaker for sure, but I do feel the cardioid settings will be room and placement dependent, hence the slight reservation.
Nice, do you have distortion measurements?That is what audiophile call a fast bass
Alright, so today I want to give a sneak preview of our Klippel NFS session. I tried to format them the same way as @amirm does, so you can compare to his diagrams. But please keep in mind that these are preliminary, there will be a another session in September and those will be the final ones.
So let's get started with CES2034 ("Spinorama"):
View attachment 75832
The green line at the button is the cardioid-mode, so you can see the extended directivity down to 200 Hz.
Early reflections:
View attachment 75833
Typical dip of most non-coaxial settings, because of the vertical driver alignment.
So let's compare cardioid and non-cardioid mode and see how it works out:
Horizontal in non-cardioid mode:
View attachment 75835
Very smooth and constant horizontal directivity 700 - 15000 Hz (red curve).
140° wide coverage (-6 dB), so a very broad sweet-spot in the horizontal plane.
Horizontal in cardioid mode:
View attachment 75834
Mostly the same, but you can see the extra directivity down to 200 Hz. So it's 200° @200-600 Hz and again 140° @700-15000 Hz.
Also interesting – grope delay:
View attachment 75836
Low and constant >80 Hz, thanks to FIR filtering. Even below it's pretty flat because of the closed cabinet (curve <30 Hz invalid, because of bad SNR). That is what audiophile call a fast bass
Nice, do you have distortion measurements?
Question: I'd go for the higher powered model, for which the website lists 121db(?) as max output. Where in the frequency range is it most limited?
Also super interested in the M2 for use as mains with M1 surrounds.
So what are we looking at for -3db in room response, Roland? And will it give that at 100db? And it it possible, since you have a Klippel, to do the in-room response curve?
Not asked before: is there any sort of quality assurance in terms of unit to unit variation?
Very nice. Some questions: isn't 8 ms of delay a bit much for TV/games? Do you expect the cardioid effect of the M2 to reach even lower, or will it just provide more LF extension and/or SPL ?So here are the results of our final Klippel session this week. We worked on some details and implemented a new feature (in software) which is called "dynamic limiter". It works similar like an EQ at the lowest end and extends bass at low levels (now 32/36 Hz -3/-6 dB), while protecting at high levels. It also works in the time domain, so that you can safely overload the drivers for a short period (electrical). These limiters are very advanced as they work in a “look ahead” way, without clipping or any other negative audible effects. It sound very nice ;-)
Spinorama in monopol (non-cardioid) mode – you can also see the new bass extension:View attachment 82507
Spinorama in cardioid mode – again, nice to see the extended directivity to 200 Hz because of the radiation pattern:
View attachment 82508
There will be a full stack documentation in a couple of weeks.
Very nice. Some questions: isn't 8 ms of delay a bit much for TV/games?
Very nice. Some questions: isn't 8 ms of delay a bit much for TV/games? Do you expect the cardioid effect of the M2 to reach even lower, or will it just provide more LF extension and/or SPL ?