Purité Audio
Trade: Purite Audio
When you measure with REW you can share the complete file.
Keith
Keith
The 1st order bit is the rolloff at 10Hz. The point of this is not to reproduce super deep bass, it's to reproduce audible bass with minimal phase shift.
The crossover to the KEFs is LR4 (actually it a pair of LR2s but for the sake of discussion let's call it LR4).
Maybe we should get back on topic and discuss Kii 3s?
The subwoofer output is a great idea. My concern, though, is that it doesn’t look possible to time align the subs from this output with the main speakers. (I’m thinking of delaying the main speakers in relation to the subwoofers so as to account for the location of subwoofers - which are often distant - and in-built group delay of subwoofers.) Have you used the subwoofer output and what was needed to make integration with subs work well? Perhaps it’s not much of an issue if the subwoofer(s) are bought in at a low frequency (as opposed to <80Hz).You can still use subs to even out the room response. The Dutch & Dutch 8c and 8m make this especially easy with a dedicated subwoofer output on each speaker and a variety of EQ and filter options.
I’m thinking of delaying the main speakers in relation to the subwoofers so as to account for the location of subwoofers -
I haven’t tried it yet but I believe it is possible from the inbuilt EQ, I will check the alternative is to create the delays in say REW then load them the convulver file into say ROON .
Keith
The manual on the website says there are delays, Xover filters, phase inversion, eq etc. all the essentials for seamless sub integration.
Is this with the Dutch & Dutch 8c or Kii 3? (I don't see this capability described in the Dutch & Dutch 8c on-line manual.) So we're talking about delaying the main speakers to in relation to the subwoofers.
I see some minor irregularities, but certainly nothing troubling and they compare very well with those other models. That "glitch" for example is only really apparent in the 75 degree off axis plot, and even then the affected band is so narrow that it would be inaudible playing music. These are really good measurements, which are all the more impressive when you consider the relatively low price of this model.
I haven’t tried it yet but I believe it is possible from the inbuilt EQ, I will check the alternative is to create the delays in say REW then load them the convulver file into say ROON .
Keith
If there are delays for the sub out, the DSP has delays and you must be able to delay the mains. Clarification from a dealer would good though.
What exactly is wrong with these measurements? They look good to me. Granted they are not actually flat off axis, as suggested above.
Yes, it’d be good to get clarification as my reading was that it was possible to apply this DSP to the sub output no the main speaker. I guess, though, the alternative is to run the speakers with analogue input with time alignment with a subwoofer or few done earlier in the chain. The notion, though, of digital to the speaker with all sub EQ and volume control managed within the speaker is very attractive though.
The measurements are decent enough, but consider how speakers might measure well in an anechoic chamber, yet, as Amphion put it, 'have a frequency response like the Swiss alps in-room'.
You can still use subs to even out the room response. The Dutch & Dutch 8c and 8m make this especially easy with a dedicated subwoofer output on each speaker and a variety of EQ and filter options.
Subwoofer integration and EQ are included and adjustable from the app, the 8C doesn’t need a sub because it is already full range but I Must get around to trying subs destructively .
Keith
There's very little information in the manual, nothing useful on software config. Not being able to delay the mains will severely restrict sub integration in most domestic situations. I can see how the cardoid processing might make it tricky to offer high pass filters on the main speakers but delays should be straight forward. Where are these salesmen?
Yes, it'd be great to hear back from the experts on what is, and isn't possible with the Dutch & Dutch 8c EQ. Also, why does cardioid bass have an impact on integration with main speakers?
Yes, it'd be great to hear back from the experts on what is, and isn't possible with the Dutch & Dutch 8c EQ.