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  1. Hi @hifi_swlon, That's quite a number of questions! We feel the frequency at which the DSP runs is irrelevant engineering information. I'm reluctant to the share that information, because it is often misinterpreted. Some people believe a high DSP frequency to reflect higher sound quality, which is not true. The DAC is a Texas Instruments PCM4104. The amplifiers are by Pascal-Audio. There's a networked Linux computer inside the 8c, no separate streaming module. We do all software development ourselves. The DSP print and interface print are of our own design as well. The AES input takes anything up to 24/96. Streaming mode currently accepts anything up to 24/192. The 8c's will be truly Roon Ready. A native app is under development. I didn't know our website says we already have a native app. I'll look into it! Thanks. The electronics don't run very hot, there is sufficient cooling. Standard warranty is 2 years, but when you register your pair with us it's 5 years. When the volume is decreased with the web-app on lanspeaker.com the volume is reduced in the last stage of the DSP, right before the DACs. This is entirely transparent. We are training our distributors to do basic servicing. For big repairs sometimes the speakers have to be shipped back to the Netherlands. I too would love to see a beautiful hardware wireless remote for volume and input, as well as an 'input box' .
  2. We are working on a physical volume control device that accepts multiple sources. We're also working on custom stands. The 8c's can be bolted to those stands.
  3. The pile of work in front of me is getting bigger every day, but I should have taken the time to reply to these questions much sooner. Mitch wrote a wonderful review on this platform, and he, Computer Audiophile and the readers had every right to my time and attention. I'm sorry about that. It's a unfortunate you interpreted my post on Gearslutz as a diss, because it wasn't. I've always been very clear about the fact that I have a lot of respect for the people at Kii - both personally and professionally - and that I think the Kii Three is a remarkable product. I stand by that and don't feel there's anything I should apologize for.
  4. Hi Joerg, They don't actually. We might at some point add an auto-off functionality with a firmware update, but you'd have to turn on the 8c's manually again.
  5. Hi @dc655321! The 8c conceptually is quite unlike conventional loudspeakers. In the midrange (100 - 1250 hz) the radiation pattern is more or less cardioid. The waveguided tweeter has directivity that matches with the cardioid quite well. Below 100 hz I initially considered going cardioid as well, but you sacrifice a lot of headroom in order to do it and the benefits of a cardioid in the modal range (the frequency range where standing waves dominate what you hear, not the loudspeaker itself) a questionable. Then I remembered the work of the late Roy Allison. He came up with the idea of coupling a speaker and the wall, in order to deal with the early wall reflection. In the 8c a very welcome additional benefit of boudary-coupling is that the wall increases the directivity in the bass, for a better directivity match with the cardioid midrange. The two woofers in the back only do bass below 100 hz, they get the exact same signal. The visual effect you describe is probably the effect of aliasing. The woofers in the back don't work together with the midrange driver or the slots in the sides to create the cardioid pattern. In the midrange the directivity pattern of the 8c is strictly the result of the acoustic cardioid that is formed by the midrange driver frontwave and its filtered backwave, through the vents in the sides. What I as the designer personally think is really cool about the acoustic cardioid, is that it kills two birds with one stone: you get the very welcome cardioid radiation pattern, but you also deal with the backwave of the midrange driver, but putting it to use instead of having to go to great lengths to keep it contained inside the cabinet and turn it into heat.
  6. A 2 year warranty, which will be extended to 5 years if you register your pair with us.
  7. The fan is there only as a safety precaution. It goes on only when the amp reaches a temperature of 60 degrees Celsius. In practice it very rarely does, perhaps only in some studio's in summer, with lots of tube gear on all day. I've never heard the fan turn on myself, besides during any practical listening session.
  8. The AES input accepts anything up to 24/96. In streaming mode the 8c accepts anything up to 24/192.
  9. The 8c's offer their best performance when coupled to the boundary behind them. That means up to 40 cm between the back of the speaker and the wall for optimum results and still almost perfect results with a distance of 50 cm. When the distance is significantly smaller than the wavelengths being produced, the 8c and the wall become a single system. The reflection effectively coincides with the direct sound produced by the woofers, for a perfectly phase-coherent result. A boundary that is not solid, will take away some of the bass energy and will slightly phase-shift to the reflection. However, the wall would have to be a very effective damper in order to significantly affect the end result. In practice it turns out that the response of an 8c in front of double pane glass is pretty much the same as of an 8c in front of a concrete wall. Very lossy panels such as for instance a single layer of gypsum board are probably too lossy for best results, but I've found that with acoustic measurements and proper EQ you can actually achieve a very good results. And really, you should always do acoustic measurements and use the onboard DSP functionality (we call is Active Room Matching) to perfectly integrate the 8c's into your own room. When properly set up and dialed in with Active Room matching the 8c's sound great even in rooms with mediocre acoustics. I've had direct experience with this myself in my previous house. The living room was very large, with 14 x 5 meters and there was hardly any damping. Reverberation time was about 1 second. I tried several speakers that simply sounded horrible. I only ever listened at background levels. Until I put the 8c's into the room. All of a sudden I could play very loud without any listening fatigue. Sure, you could still hear the long delay tales, imaging was pin-point precise and some details got masked, but the sound was always very pleasant and spacious. There are a couple of reasons the 8c's sound good even in such a reverberant. The first is that the off-axis sound corresponds closely with the sound that is radiated directly at the listener. The reflections have the same neutral tonal balance, without certain frequency standing out and coloring the sound. The second reason is that the 8c's are a bit more directional than conventional cone and dome speakers, which results in relatively more direct sound and thus less room sound. Finally, with the Active Room Matching functionality you can deal with annoying peaks as a result of room modes. This will clean up the bass considerably, be it only in certain locations within the room. So yes, with the 8c's you can indeed choose to ditch the unsightly room treatments, but they sound even better in a room with good (preferably not too dead) acoustics and some bass damping.
  10. Hi @Em2016, I fully agree, it's a great review! I like how Mitch has a very different approach from most other reviewers, very in-depth and technical. Love it! There are several very interesting streaming functionalities in the development pipeline. Implementing the Roon RAAT SDK was actually not that much work. Getting the 8c's Roon Ready took very long because we've had to develop quite a bit of technology to achieve perfect sync between speakers over the network. We have that part covered now and we're in the latest stages of Roon certification. The heavy lifting has been done, so we'll be able to add other protocols relatively soon after.
  11. You're right Emlin, the web-app is fully functional, but has its practical limitations. For instance, it looks rather basic and it takes some time for the web page to load and connect with the 8c's. Once you're in, the 8c's do respond instantly to commands, but the web-app isn't really suitable for use as a remote, because for that you'd want more or less instant control. We are working on native apps for Android, iOS en Windows with a better user experience. The 8c's indeed don't have a USB input. We believe USB doesn't have a future in high end audio. We believe in audio over internet protocol (AOIP). Roon is the first step, but expect many other formats soon after the 8c's become Roon Ready. We're in the final stages of being certified by Roon. We are also working sort of a preamp/streamer box with remote control for those who would like to connect many different sources and want to have a physical device to interface with.
  12. Hi everybody, I've been meaning to properly reply to the many remarks and questions, but I've had the flu and I've been buried in work lately. But it's taken too long now. I'll try to reply to one post at a time! Mitch, I've already thanked you for your wonderful review of the 8c's in private, but here too I'd like to express my gratitude for such an incredibly in-depth expert review! Still reading up on all the references . I'll be back! Cheers, Martijn
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