|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
[quote user="Kcct82"] Bridging the 200-400hz gap3) Bridging the perceived "speed" difference between 11" cone midbass driver and 2" diaphragm Goto driver…..[/quote]I do not know how you drive the things but if you have spare power at the amp the driv...
|
|
Post #73:
..
|
by
be
on
2010-02-27
|
|
|
Romy wrote:"However, the diaphragm in the small JBL 2420 driver is full metal (correct me if I am wrong) and there is absolutely nothing in that driver that might be soften mechanically."The speach coil former seems to be made of some kind of fiber a...
|
|
It looks promising JD. What ratio of diaphragm area to throat area did you arrive at (for the large horn) & how did you choose it?...
|
|
[quote user="Andy Simpson"]Usually, this is a _time-domain_ artefact of microphone diaphragm resonance, made worse by excessive proximity. [/quote]
Very interesting!
[quote user="Andy Simpson"]Then, finally and most horribly, we have the brain, wh...
|
|
I wonder how far one could get to the traditional horn ideal (low-ranging compression driver plus some metal shimmer on top) with a BMS neodymium pure mid driver and a Celestion/Eighteensound/Beyma with aluminium diaphragm.BTW, something with berylli...
|
|
I heard the Array 1400 at a show: https://www.neomax.ro/produs.php?id=P:5737-S:336It has the aluminum diaphragm rather than beryllium.The demo music sounded very nice. Effortless and beautiful.The midrange tended to spit and shout a bit though, like ...
|
|
[quote user="op.9"]I was going to try a selenium 405 with the phenolic diaphragm, but they discontinued it. Everything else seemed a gamble. maybe I missed a trick...cheers, james[/quote]http://cgi.ebay.de/SELENIUM-D-405-2-PHENOLIC-DRIVER-1-PAAR_W0QQ...
|
|
A kind chap from the Lansing Heritige forum has identified my new driver as a 2482. Interestingly those good radian people do an replacement aluminium diaphragm for this driver.What remains to be seen is how big the advantage of the original phenolic...
|
|
Dear Romy,
well the horns are actually not designed for HF. The intended working range is up to 5-700. But since we use low Q, only second order filters we want to have a rather large overlap in the crossover region and a fairly even pattern over ...
|
|
This post is split form the thread:http://www.GoodSoundClub.com/TreeItem.aspx?PostID=4549http://www.GoodSoundClub.com/TreeItem.aspx?PostID=4556[quote user="jessie.dazzle"] "...I very much might try to use the metal suspension again when I will be dri...
|
|
This is the project that I been thinking to undertake for years. I have motioned about in multiple times that Vitavox’s S2 lower region is very lucrative but unfortunately not exactly useable if the driver run all the way up, unless you are wiling to...
|
|
Hi Roman, hi all...... very interesting topic... I recently made the contact between Josh and Klaus and his Goto system... I experienced Klaus' system three times and also if someway blaming his choices about using only and exclusively "liquid music"...
|
|
Romy Wrote: Can you
define what do you mean “HF is not as clear as I would like”? The HF sound is very quick and weighty , which can be quite nice on classical guitar for examlpe, but the tone is not clear enough, meaning for example cymbal at...
|
|
[quote user="Romy the Cat"]You do not see any explanation is because you are not accustom
to think about explanations but wait that explanation will be brought to you.
Here is a homework to you: provide answers to the following questions:
1) Wha...
|
|
[quote user="Romy the Cat"]
Actually the most interesting subject in physicality of ear to me is not the cochlea damping but the fact that brain and ear are liquid decoupled and whatever brain hears is transmitted through a liquid pressure wave. Of ...
|
|
hi. That’s a nice topic. I studied the VO like a maniac. For me there are 3 topics. First was obvious, easy, the horns. The bass horn for the ak151 is housing a rear chamber slightly open, giving the injector channel - that creates a lot charme, flav...
|
|
Hello Romy,
I understand the difference between the kind of "basshorn" pictured here and the proper compression-horn that you use. It is true that many DIY-types like to make basshorns in their garage without much thought to technical consideratio...
|
|
Unicon, the RESONANCE that you deal while you tightening to loosening screws does not deals with TIME . Perhaps it is the semantics that you feel comfortable but still I would live mass resonance to mass domain and would not confuse it.
The e...
|
|
[quote user="haralanov"] The horns, even the fast opening ones are physically too deep for their mouth’s size, and this leads to a psychoacoustic illusion that the sound images are arrested at the bottom of the horn and from there they scream they wa...
|
|
Nope, I never heard about those
drivers. For sure a compression driver that goes down to 80Hz might be interesting.
A few concerns I would have however.
The people who make such a
driver would not come from nowhere but they rather would b...
|
|
A few months ago a reader of my site contacted me and informed about that he found a very interesting driver, that his is using and he is very excited about it. The driver is JBL 2490.
http://www.jblpro.com/pub/components/2490.pdf
...
|
|
Romy wrote :
"...This BTW expanse what we have such a differences in assessment of leaking he the S2’s back chamber. (It was somewhere in past)..."
I would just the same like to confirm my findings one more time in the new room; I will run the test...
|
|
Hi Romy,Many thanks: the answers are...1. The tweeter I thought could go below the MF.2. The room is 5m x 5m x 3.6m.3. Given size of room, corner location would be most practical.4. LF will have to be compact, hence tapped horn appeals.5. S2 diaphrag...
|
|
Oh well I tried. I though I was clearly asking some easy questions about two similar drivers and the small details of what makes them sound different.
I obviously did not do a good job at this.I thought Romy being very familiar with the S2 and also...
|
|
[quote user="vinylithicum"]Hi audiofilofine.Nice drivers, although the picture is a bit fuzzy. Can you tell more about your drivers?Maurice.[/quote]All parts of the tweeter shave been designed and built.All are built in magnetic steel in preferenceto...
|
|
I have a couple of queries relating to the transition from the mouth of the S2 driver to a horn generally, and to a 400Hz or 250Hz horn specifically. The profile calculator that I use for tractrix horn (horncalc) does not take into account the de...
|
|
Hi, true thats why i wrote designated amp (Active). As a passive xover thats rather difficult, so try a low Q filter type that increases steepness slowly. Like a Bessel (Q 0.585) or if youre skilled calculate your own Q smaller than 0.5 (LR) as a 8-1...
|
|
symbiotic diaphragms were never used in the 19's. this may be part of the "bad sound" that this guy was experiencing.they used the 802-8g driver with ultra light epoxy and aluminum diaphragm that allowed hf response up to 22,000 cycles when pairedwi...
|
|
HelloI've always wanted to try an ESL as a horn driver:So I employed a hi power Koss 3-layer bass module cut from Koss "model 2" spkr.Polarizing voltage was low on Koss design so it was upped to 3kv w/ custom PS.Horn is old closet that had a trapdoor...
|
|
Jessie, yes from a perspective of general horn propaganda your post it correct but from the perspective of “reading the back side of the midbass speed bump” I would argue that it has nothing to do with horn loading. Look at the notion widely. I would...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
1 |
|
 |
|
|
Total human visitors: |
43,015,743 |
|
|
|
|
|
|