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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="Romy the Cat"]Herman, I completely do not understand what you ask. The physical aligning of magnets is absolutely irrelevant. The crossover slopes are irrelevant. [/quote]OK.[quote user="Romy the Cat"]Why would you need to do switching b...
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Alex, contrary to the numerous speculation that many people more or less reasonably spread about the subject, my experience indicates that there are no such a things as “preferable crossover frequencies". The chosen optimum crossover frequencies are...
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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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[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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[quote user="Wojtek"]I have a warning that 60 years old Tannoy 10" red crossover is a sealed unit you won't be able to update and that nobody has the correct diagram of that crossover since Tannoy archive was consumed by fire.[/quote]I have a pair of...
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The current suggestion from GOTO is to crossover at 200Hz with S150 horn. Of course, you can crossover higher but what are you going to use to cover 220Hz down? If you choose to use the bass horn, you do want to keep it crossover low.&nbs...
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Paul,My current active crossover is a DSP unit which likely has low enough input impedance and single ended inputs. I added BAL inputs by using input transformers. By no means do I want to use this combination as a representation of my crossover! I i...
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GOTO always recommend to use 1st order active crossover and 2nd order passive crossover. The reason to use 2nd order for passive crossover is to protect the driver. Of course, the user can use whatever they like the best but the recommendation ...
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Well, I never felt that for prototyping I need more then one-channels crossover as by use of the poor sounding prototyping crossovers I never look at the system in it’s entirely but rather for the “technical listing” of just two channels that I...
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You have some very good ideas, some I hadn't thought of before, the main reason for the 300hz crossover is to keep the crossover out of any important areas of music and voices. Moving the crossover up might solve some problems, especially the huge hf...
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One thing that is unclear is the mid/HF crossover. Is there more information?Is the system triamped with S15's or biamped with 2 x S30 and S15? You say the crossover is at 15khz yet the UT-045be has a built in switchable passive crossover which ...
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Hi Romy, Many thanks for replying. I do not want to modify the two drivers. I agree with about all the BS from people selling speakers with TAD drivers. What I want to do is replace the crossover with one of higher grade parts and thereby also elimin...
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[quote user="MINGSU"]I think most of reader get my point of the car examples. The main point is to follow the manufacture recommendation on how to use the driver. Of course, if you want to do something different, that is your choice but don't come ...
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Confirming our concern about digital crossovers, by Harman international, the parent co. of DBX, today at 11am, and I will quote, "theoretically they compress the sound" and also I will quote, "it is a concern for live recording and not live sound". ...
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[quote user="Romy the Cat"] Make an experiment, and I will simplify the case quite assertively. Take a typical compression driver, cross it at 800Hz, second order and load it into a proper contemporary horn (Tratrix or JMLC) of 300Hz. Listen that hor...
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Romy,what do you think will be the crossover points of the new system?...
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[quote user="noviygera"] I want to listen to both 12db/octave and 6db/octave passive versions and see which one sounds better. And keep the one that sounds better. [/quote]Herman,
It depends what you would like to listen. If you would like to ...
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My sub-bass amp is back but I am not sure if I am comfortable with it. The guy from QAudio did a wonderful job to fix my modified B-2 power amp and now I have my amp for ULF with passive line level filter in it. So, Now I have two identical, fully fu...
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[quote user="twogoodears"]I'm pretty interested in yr. opinion about the possible choice of best, safest, smoothest way to use solid-state amp/low-end with "Triamp"... ok... 3-channells DSETs... and my system upper ways... what slope do you think...
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The crossover will be determined by the room and NOT the Tannoy. I remember a post where an 80 Hz room issue was covered by the crossover - I think from the woofer tower to the midbass back then. Then another post came where the woofer towers were di...
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Very helpful primer. This might be a good place to elaborate a bit on approaching the task of crossover selection and testing for each driver, especially with respect to points, filter selection, steepness and other parameters one should consider. Fr...
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[quote user="drdna"] 1. This particular EdgarHorn is being sold to make way for a Cain & Cain speaker which is based initially on a single-driver type backloaded horn. To me this suggested that the seller was seeking the benefit...
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Yes. For prototyping.I found out that Luxman built an 8-tube unit exactly like it.I borrowed a picture from the net: www.webbtjanst.se/temp/2003.jpeHowever I think it might be interesting to build one, with decent pots, 6dB filters and 6 buffers afte...
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[quote user="slowmotion"]Romy, there are more ways to the top of the mountain... <BR>And we already know that your way isn't my way... <BR><BR>You bring up many very valid points, but still I will continue to use my digital crossove...
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[quote user="Romy the Cat"] Make an experiment, and I will simplify the case quite assertively. Take a typical compression driver, cross it at 800Hz, second order and load it into a proper contemporary horn (Tratrix or JMLC) of 300Hz. Listen that hor...
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Hi
I read about your very fine hornsystem on Romy´s homepage. I started now a own Hornproject and I see your crossover from “Hornfabrik”. You have so right that a good crossover is also a key for a very good hornsystem. I´m so interested on the valu...
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Roman,Well, what can I say.Different parts sound different, like it or not.I agree the topology needs to be "right" first, but once past that you will be surprised just how much difference parts happen to make.However, cogitating about your current A...
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[quote user="Bill"]You had that glorious sound with the 40 year old caps in the B2's and the Tannoy crossovers. Do you really want to move away from what they produced in your system. A good way of testing new vs. old caps would be to replace the tan...
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Thanks for that collection of negative information on the DSP effects on music, Romy. I'm not a contributor to your site but you always put me in wierd situations with your unusual findings. For example, I have always used a DBX digital crossover in ...
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My own experience suggests that it is possible to do speaker-level passive crossovers, but I must qualify that by saying that although I have put a lot into the crossovers themselves, and the wire,etc., etc., it has only been since I got the ML2...
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