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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hi i am a new forum member and recently i built some speakers using Altec model 19 components 416-8b & 802 G. I built some 7.5 cu ft cabinets with two 4" diameter 5" deep ports this is the optimum cabinet size for the 416 i ditched the 811 horns ...
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[quote user="jessie.dazzle"]The Velodyne SMS 1 will allow you to do just about anything, up to 200Hz. [/quote]I was the Velodyne crossover into the game yesterday. To my surprise it not as convenient as I thought. The high pass filter is not defeatab...
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Thanks for your comments, Roman.You're someway right... Goto foolishness;-))) maybe... also Mingsu wrote he "never" saw such a (Keith's - or mine) way to use S-150 mid-low horn... everyone's - me too, also with some doubt - copycatting each othe...
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Jeffery, I think Romy brought up some good points about moving the crossover up. I've always wanted to push it down, to use the hf driver more as a full range unit, which is probably the wrong to go. Steve proved this to me when we ...
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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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[quote
user="anthony"]Looks like the Red 10's are circa 92dB/w/m as an
entire "speaker" including woofer. I've never played with them
before, but I wonder how much, if any, SPL is scrubbed from the tweeter by the
crossover so that it matches the...
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[quote user="stuck.wilson"]In this thread, you previously said--
12) If a filter requires a phase inversion then it is preferable to flood crossover point with amplitude and do not invert phase.
What exactly do you mean by this and how's it work?[/...
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Dominic:Welcome to the army of the "Great White Horn". I have been using these beasts for almost thrity years.The flange on these horns is designed for use with a 1.4" or 1.5" driver. The JBL 2420 is a 1" 3 bolt "JBL pattern" driver.Adapters are avai...
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I realized you meant Midbass when you wrote MD. I agree that letting the midbass horn run full range on the bottom is not a good idea. My point was try the bass channel (Aura 1808) run much higher and share the same crossover as the midbass when cros...
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Options are limited here... looking at the schematic, you're sorta pinned in by the biasing topology used. One typical method would be to use a resistor divider network at the input grid to the 6E6P. Problem is, this results in a huge bias offset. By...
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Yes, maybe the 120 db/octave is THE trick for complex multi-ways systems of highest resolution, yet this barbaric:-) slope can ONLY be achieved by digital domain crossovering... unfortunately, as a satisfied user of TacT RCS 2.2 XP AAA room-corrector...
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Yesterday I spent most of the day to play with my IB, trying
to make it to sound the way how I like. I
pretty much wanted to re-implement on analog level that surprisingly good result
I got with digital crossover. So, I have built my along crosso...
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That is funny and I kind of forgot how it is. Got home and plugged the SMS digital crossover into the chain of my new midbass horn. I sat to lie different crossover sloped. The bass from the midbass horn was like somebody hit me in face with a wet sp...
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[quote user="Paul S"]Romy, what exactly was bad, and how?Honestly, my knowlwedge and objectives were in infancy back then. Also, it's been so long that my "memory" is probably crowded with parasitic ideas passing themselves off as memories. But I r...
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[quote user="serenechaos"] If I were in your shoe I would take make as you wish but wish a slight correction:
65Hz Tractrix from ~80Hz to ~800Hz w/ fane 8" ( or better driver) 250Hz LeCleach from ~800Hz to ~10kHzJBL 2405 ribbon from 10kHz up
...
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[quote user="Markus"]Very interesting discussion. I have taken a close look at Marco's horns and am thinking about using them in a horn installation. I plan to use the TAD 4003 from, say, 1 to 8 kHz, and a tweeter above that.
I would love to use ho...
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SG505TT + S150 horn crossover at 180 Hz is not recommended by GOTO. The SG505TT driver is not recommended to use with single throat S150 horn. Double SG505TT driver is recommended to use with single throat S150 horn.&nb...
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I suspect that your negative views about on axis listening due to sensitivity to listening position must be to some narrow angle on axis frequency anomaly of the driver/horns you tried.If you insist to use chromatic aberration as a working hypnosis!!...
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I asked my Japanese speaking friend to translate for me the information about the tweeter in that Brazilian installation. It is JBL UT-045Be, I never have seen/heard it, and so I presume many others… 25mm beryllium spherical diaphragm, 52mm circ...
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Welcome Sean19, Another member should correct me where I am wrong. There should be some tweeters that just start emitting in their proper frequency range and do not need a crossover. They might need a resistor so that they are volume balanced to ...
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Use plumber's putty.If you have 4 of the tannoy drivers try using two in each cabinet but only drive one tweeter. Adds 6 dB before distortion.while the sound is very good, it doesn't quite have the sound I heard at Romy's, but he hasn't been able to ...
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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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[quote user="Kcct82"] I know you're not a big fan of digital delay, but I'm using behringer DCX 2496 to make things easier... this way I get to keep all horn mouths on the same plane which avoids some reflections (from other horn mouths). [/quote]
S...
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Very interesting read. I like comfy!Now for ultimate comfiness: would you recommend an actual unit for prototyping?...A digital crossover that works OK, with >=2 analog unbalanced inputs and outputs, 2*3 channels output, possible 6db slopes a...
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For a casual observer it might appear that I am constantly fought with my ULF, finding and loosing better and worse configurations. It might be so but I have a very strong sense of objective of what I would like to accomplish. I want to reinstat...
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[quote user="Romy the Cat"]Even though quantivly and structurally bass is correct but it is not what I am looking. [/quote] Last night I got rid the SMS crossover. I built in the 28Hz, 12dB per octave crossover in the Yamaha B2 amp that I use f...
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[quote user="Romy the Cat"] For a casual observer it might appear that I am constantly fought with my ULF, finding and loosing better and worse configurations. It might be so but I have a very strong sense of objective of what I would like to ac...
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Once again, let make it the last post off the subject of the 5-chals Milq.
I think it make sence to start from 370Hz-400Hz horns for S2, targeting it for 1000Hz. Then the lower bass horn, for instance the 45Hz, however it should have a chamber of m...
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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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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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