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NiToNi

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  1. Audiolense is a state-of-the-art DSP FIR solution, you can’t do much better than that. Its only weakness is that it’s still not great at optimising multiple subs as a whole (it still does this by trying to flatten each individually). One workaround would be to use a miniDSP and optimise with MSO on top of using Audiolense (then with the multiple subs as “one” single sub in Audiolense). https://www.andyc.diy-audio-engineering.org/mso/html/ So Audiolense is a software that only generates FIR filters (crossovers, delays, EQ etc) based on acoustic measurements that you do directly in the program. You don’t need a powerful PC for this at all, an old laptop will do. To then actually use the filters, you need a so-called convolver. Audiolense now makes their own software convolver so you can set up a dedicated Windows 10 PC, preferably silent and reasonably powerful, with your Aurora 8 and it works exactly like a miniDSP but 100x better (ADC/DAC, noise, resolution etc) and fully automated (well, almost). Both JRiver and Roon have built-in convolvers so you can use the AL filters directly in these. If all your media is PC based, with no need to correct external sources, then this is EZ PC (no pun intended). Audiolense, a small PC and something like a miniDSP U-DAC8 would suffice to do an active 4-way. For higher-end, better DACs, more channels (HT) etc, there are better USB multi-channel DACs or external sound cards available from the likes of Emotiva, exaSound, RME, Mytek, Lynx etc. On the lower end, you can use the external sound card you’d need for measurements anyway (Audiolense, REW etc), eg a Focusrite Scarlett 2i4 for a pair of active 2-way speakers or even a 2i2 for EQ/room correction only (stereo). One caveat: Long high-resolution FIR filters (i.e. shitloads of taps) do introduce quite a lot of delay, making them unsuitable for live sound/tracking. This is also a problem for HT. It used to be that video processing (upscaling etc) was the CPU intensive part, hence the built-in possibility in processors to delay the sound to match the video, but for advanced DSP audio it’s now the other way around! Nonetheless, I’ve yet to see a video delayer, internal or external, available in the market although I’ve kept my eyes open for the last ten years or so... Audiolense may seem expensive but it’s the best solution available (together with Accourate) to tackle the weakest link in the audio chain - the room - and a superb toolbox/toy for DIYers who like to tinker with their stereos
  2. I would think with two K-402 MEH as L+R, with full wall to wall coverage, especially if you toe them in to cross a bit in front of the MLP, there’s no need for a Center channel (and thus also an acoustically transparent screen).
  3. Thanks, Chris. I will look into your suggestions a as a possible backup. Sorry to hear about the health issues in your family - all the best.
  4. Chris, is your full-range MEH kit still in the cards? I know last summer you were waiting for the moulds.
  5. Thanks for setting me straight. What if I were to scale down or shrink the whole horn proportionally (~17%) to fit the 10" woofers, would that work...?
  6. Could these be used with 2 x 10" woofers? I've got four Volt BM2500.4 that could be interesting to try in this alignment...
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