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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hey Romy,
One rather simple acoustic solution would be to use a quarter wave
stub. This is about the closest acoustic analog to an electrical notch
filter. I believe JBL used this trick in their 'Aquarius' speaker
to remove a peak in the ...
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Yes, but if you could make it broadband enough, it might function
effectively as a filter. IE, remove a broad notch from 300 to the mass
rolloff of the horn. Just thinking aloud. What about a front
compression chamber? That would seemingly be the ...
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Thanks, Greg. I considered it. This method would act like a notching (with unprofitable sonic results as we understand) but I need rather a filter, preferably a sharp one… I know it is kind of a fantasy…. The Cat ...
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Hello , Roma ! I think that you can use only a back chamber with decreased size , and a serial capacitor . I think that there are no ways besides ... Dima...
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There is a quandary that I can’t resolve.
There is a hypothetical horn-loaded chanall operating for instance flat form 100Hz to 5000Hz. Presumably I need to cut this channel off at 300Hz, very sharp-with 3-4 acoustical orders, but according to the ...
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You need to find an individual who can design series crossovers. Both JBL and Altec used these, because they sounded best. You will need to look for an individual near where you live because they will have to test the drivers as the design progresses...
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[quote user="stuck.wilson"] having seen the benefits of first orders in my own application tonally AND dynamically[/quote]
It's never was my experience. A never seen any tonal distinction between first and second order and I don't think that I exper...
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Hi Skushino,1) In your post above regarding certain(?) of Bruce's products, can you please identify *what* crossover parts you received or heard (in context of given system) which you feel are "low quality" ..?2) Which model & ...
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Ok that was a long road to "stick with vertical alignment, and stay away from BMS." Back to compression drivers, and implementation...
If I were in your shoe I would take make as you wish but wish a slight correction:
65Hz Tractrix fro...
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[quote user="i_should_coco"]I view of the fact I have two pairs of S2 drivers, I'm intrigued by the thought of running them a la Romy, i.e. high and low. So, in addition to procuring a pair of Big Mama horns, I'm discussing with Martin the prospect o...
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Hi Romy and all,
first of all, my name is Henry, with a "Y". due to an Irish grand-grand-grand father called "O'Henry". the O' was deleted when my grand-grand father was born, due to a silly servant of registry office. :-) all my horns uses the calc...
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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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Romy,what do you think will be the crossover points of the new system?...
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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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[quote user="ayebee"]I’m probably suggesting the obvious, but have you tried adjusting the crossover component values on the fundamentals and MF-channels? On the fundamentals-channel, increasing the inductor-value, and decreasing the cap, so that...
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I had in my basement Marchand X26 crossover that I use over 10 years back. Since my B-2 power amp with passive filter is being fixed I setup the stock fixed B-2 with external Marchand active crossover. I spent some time to modify the Marchand X26 bi...
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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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How lucky was I that I bough that digital crossover! I am think now how can I search for my crossover slope and find that this digital toy would make it very so much easy. My major concern is to make sure that some frequency anomalies that I have fo...
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Jessie,
I was trying to evaluate the gain of my amplification in respect to larger room and again was thinking about your case. I think something that you do it not correct. You are complaining that you have not enough gain in upperbass, but I...
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I think clearing this up this may be of benefit to other users who are building multi-way horns.
Let's say I've got two horns mounted on a frame. There's a high horn
above and a mid horn below and they are physically time aligned, meaning
th...
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Hi Jessie!
I’m probably suggesting the obvious, but have you tried adjusting the crossover component values on the fundamentals and MF-channels? On the fundamentals-channel, increasing the inductor-value, and decreasing the cap, so tha...
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Have you checked whether the right crossovers are in there? These speakers may have gone strange ways as they seem to be so unused....
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Behringer has a 3 channel digital crossover just like what you want.Don't remember the model, but it's on their site....
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I am observing an interesting and surprising fact – I am begging to like my active Marchand crossover. I did a number of modifications to it and it looks like the parts are broken-in now – it does sound very pleasant for my ULF. I feel it is a bit to...
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[quote user="drdna"] I know all the compromises involved with the EdgarHorns, I have heard them when I visited Bruce Edgar in Gardena, and they were pretty good compared to most of what is out there. I realized that I would likely never be able...
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[quote user="drdna"] I know all the compromises involved with the EdgarHorns, I have heard them when I visited Bruce Edgar in Gardena, and they were pretty good compared to most of what is out there. I realized that I would likely never be able...
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Ronnie,I do not know any. But the major question is why such a crossover is necessary. Obviously it requires 3 amplifiers and if so then the filters might be built in the amps. It one needs it for system prototyping purpose then if is fine but the de...
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I'm currently using a pair of LCY-100K ribbon drivers with their built-in crossovers. While they are supposedly 2nd order electrically, the actual response I measure looks rather more like 3rd order rolloff below that point. No comments about their t...
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R,How are you crossing over the SA tweeter?Cheerscv...
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[quote user="i_should_coco"]I view of the fact I have two pairs of S2 drivers, I'm intrigued by the thought of running them a la Romy, i.e. high and low. So, in addition to procuring a pair of Big Mama horns, I'm discussing with Martin the prospect o...
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All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2013
All messages within the Site’s Forum Copyright © by
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