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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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To my surprise it is going along not painful. I do it a half hour per day – only when I am in a mood - and I do not feel abusive with it at all. At this point the half of the bias chain of the third of the filters have installed. If it go further so ...
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[quote user="Romy the Cat"]The line-level crossovers work against fixed impedance and therefore the crossover point and the time alignment does not fluctuate along with reactance of the drivers.[/quote]Okay, maybe this is a dumb question, but why wou...
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Interesting, I had a prolong conversation last night with Kevin Tellekamp of the Silent Running Audio and we discussed my case. He proposed that the reason why my imaging was changed was due to the Super Melq’s powers supply in my nest stand do not s...
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Haralanov, this is very interesting way of looking about the things. So, you feel if to slice the upperbass vertically by multiple channels then it has some benefits, kind of odd to hear it from a person who advocates a single driver approach :-). So...
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There is a very interesting subject in Language of Audio – the filter slope. The filter slope is well known aspect in the audio and here is nothing new could be said in there but there a twist in the filter slope. If we are talking about multi-chann...
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It is not about the LCR phono as a concept – many companies manufacture the RIAA LCR constant impedance networks: Lundahl, Tango, S&B, Da Vinci, A-D, your Allnic looks like dose them as well. The LCR filter is not complex and any manufacturing ho...
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This subject of digital crossovers became quite popular during last few years and many audio-people give up and go for a simplicity and painlessness of digital crossovering. There is an army of people out there who would swear by a complete transpare...
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I do not make any claims just inform about the LessLoss standing. I do not know how much BS in this and HOW they removed the “outer layer” of conductor from the pass but who knows… might be they are up to something… It is said that begin all thos...
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How lucky I am! The Melquiades bass channel at full throttle gives me just enough gain to power my Midbass horn to the reference level of my MF channels. That is truly a very lucky thing. The biggest dilemma I am thinking now is type of the filt...
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[quote user="Romy the Cat"]OK, everything was fine and I might do into the sonic nuances of the PurePower unit. The PurePower drives a lot of switching nose from output. It has the filters but they help only partially. Adding capacitance to the PureP...
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[quote user="jessie.dazzle"] Romy's comments on "axial rotation" of the horns (meaning in this case, angling the horns) has me thinking. I had planned to build in a vertical tilt adjustment for horns located near the floor and ceiling... I woul...
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I did not make my mind about it but I have some “concerns”. Using SS amps and hearing different SS amps I do not like their bass and the notion of a powerful enough DSET to be able to drive ULF in A1 was born. Sounds logical. However, recently I ...
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Roman,[quote user="Romy the Cat"]Nevertheless, if that bass was truncated between the stages then the devastations are way more severe. [/quote]That may be so, however an LF response of less than -0.1db down @ 10Hz is what is normally called "ruler f...
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[quote user="Thorsten"]I wonder, which specific line level interstage transformers have you tried, it would have to be ALL of them in order for your statement "there are non" to hold.......But, what specifically do you object to in these transformers...
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hi romy
angstrom makes some nice filters
http://www.angstromresearch.com/filtri_eng.htmlregards angelo...
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It is not that I hugely like it, in fat if I know about them what I know now I would probably try something else. But B-2 does what it does, it has some cone and pros and it is not much different than any other SS amps I would try. Also, I found a w...
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Well, FWIW, my Audax LF units started life at ~100 dB and wound up closer to 96 dB to get ~40 Hz from them via ~ 4.75 cu. ft. BR boxes. Computer tuning was very close, only a strip of rubber weatherstripping in the vent opening between be...
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Paul -- I used 1st order & bandpass on the Beyma. I think that 2nd on the Lowther would have been better.I set out to try and extend one "way" from the end of a wide-range drive unit, downwards. This I found to be well nigh impossible -- perhaps ...
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Haralanov, you might not get it from my actions, but I actually understand and agree with everything you are saying, in principle. At the same time, I have no idea how to address such a sharp peak mechanically, since adding mass as usual would just m...
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[quote user="Romy the Cat"]... I will showily dump in this thread some observations of mine about APS PurePower regenerator... [/quote]If you, I, they, we, whoever… consider APS PurePower as just a power treating or regenerating devise then I feel th...
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[quote user="slack key"]I know that speaker position and room acoustics are important. I use a laser to align the speakers, room treatments, hallographs, crystals, ionizer, Z-sleeves, bybee filters, etc. I also have power conditioners, installed de...
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[quote user="Paul S"]I will eventually get another pair of ML2s to slave the bass/save the upper registers, because, as we all know by now, dedication rules. [/quote]
It wouldn’t be a DSET but rather just a simple bi-amplification. Bi-amplific...
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The last two weeks I have no preamp in house. I have great vintage EVS attenuators but I can’t use them with Melquiades as they talk with Milq’s input filters absolutely killing sound. The only way I can play music those days is only from my DAW,...
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Paul, if by error correction you mean frequency correction then I was thinking about +/- the same.i) Active filters; I have zero experience with crossing-over but people who seem to know what theyare talking about all agree that at ULF active is the ...
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[quote user="Canuck"] From what I understand, if you have dimmer switches they will present a "noise" problem for anything on the same panel. One thing that could help and possibly significantly would be to do a pony box off the panel and hopefully...
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[quote user="Kerry Brown"] A digital crossover with lower bit depth and sampling rate than the recordings it's processing won't deliver maximum sound quality; unfortunately my DEQX crossover is limited to 24/96 so it can't process hi-res digital ...
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In theory this is a nice machine and it offers a comfortable solution to clean the records.The reality showed - from what I got from owners in the last 2-2,5 years - it is ok at the beginning but after a while they all had endless problems (motor, cl...
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Yes, there are a lot of paths.I can see that many DIYers are very much stick on crossovers, changing capacitors, choosing slopes in digital filters - FIR or not FiR and so on.I know very experienced people who now say that with digital crossover he d...
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Hi Roman... you know "... but Twogoodears normally prefer a do not go to depth..." it's not an hide & seek kind-of-thing, but a necessity;-), as I'm not technical inclined or taught enough to discuss in depth of circuits designing... I'm only a u...
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[quote user="Romy the Cat"]I kind of like that APS stay behind of their regenerator and that they are trying investigate what went wrong. Who knows, perhaps when the APS unit arrive back to me (after some changes in the unit state) it will be effecti...
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