little background info on the midrange drivers i had before in this very system: Voxativ AC-1.6 (fullrange 8''), Seas Exotic F8 (fullrange 8''), FaitalPro 8fe200 (8'' wideband), ATC 75-150 (3'' dome)... all paired with various tweeters, but always with the same woofer-midbass and subwoofers.
Just to check if i'm not gone crazy last night, i'll test a pair of 3fe22 on similar baffles this week. Who knows, i might save 1500$ (Beryllium, eh)
Just to check if i'm not gone crazy last night, i'll test a pair of 3fe22 on similar baffles this week. Who knows, i might save 1500$ (Beryllium, eh)
Hi Jon,
Cool tests...
If no low pass, what is the pattern of the 950PB in the highs please ?
Is it fisible to cross with a low slope order (first order?) with a ribbon but more towards 8 Khz or even 12 KHz à la Zu Audio ?
Hey, did you have a bafle step, lol ?
Why not try also a 580 Hz XO instead 480 to avoid the dip and to have a larger mid-bass range from a cone driver (to move air) ?
debafled tweeter driver our products. - speaker concepts. - Zugspitz - Klang in Vollendung (also a review at SixLunaAUDIO Switzerland !)
Almost no wave guide compression tweeter ? :https://www.bastanis.com/index.php/audio/open-baffles-1/open-baffles-sagarmatha-solo!
with little wave guide : la "Soupe" Supreme (as we say here in a little village!) : Soul Supreme | Zu Audio
La Zu g Spitz VS la ZU Supreme... close concept ? http://www.zugspitz-klang.de/en/our-products./speaker-concepts./gloria/gloria.html ( a big cone + a compression driver) ?
Cool tests...
If no low pass, what is the pattern of the 950PB in the highs please ?
Is it fisible to cross with a low slope order (first order?) with a ribbon but more towards 8 Khz or even 12 KHz à la Zu Audio ?
Hey, did you have a bafle step, lol ?
Why not try also a 580 Hz XO instead 480 to avoid the dip and to have a larger mid-bass range from a cone driver (to move air) ?
debafled tweeter driver our products. - speaker concepts. - Zugspitz - Klang in Vollendung (also a review at SixLunaAUDIO Switzerland !)
Almost no wave guide compression tweeter ? :https://www.bastanis.com/index.php/audio/open-baffles-1/open-baffles-sagarmatha-solo!
with little wave guide : la "Soupe" Supreme (as we say here in a little village!) : Soul Supreme | Zu Audio
La Zu g Spitz VS la ZU Supreme... close concept ? http://www.zugspitz-klang.de/en/our-products./speaker-concepts./gloria/gloria.html ( a big cone + a compression driver) ?
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I bet they'll be 95% of the Radian's with the same crossover points.
Have you ever heard Linkwitz's Plutos before?
Re: #14 1nd 15. About 40 yrs ago when Motorola developed the "current" batch of piezos
(Bost JAES) there was a "hornless" version too. I think Tandy (Radioshack) sold them and there was at least one used by a small "up-market" speaker manufacturer. Possibly Celef?
Yup, just Googled it and a Celef PE1 has a hornless piezo.
(Bost JAES) there was a "hornless" version too. I think Tandy (Radioshack) sold them and there was at least one used by a small "up-market" speaker manufacturer. Possibly Celef?
Yup, just Googled it and a Celef PE1 has a hornless piezo.
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The funny thing (we won't say it too loud) is i did a blind test few months ago regarding midrange drivers... And once EQd all drivers sounded the same. 🙄
hahaha
But who cares about blind testing, right? 😛
@Eldam
If no low pass, what is the pattern of the 950PB in the highs please ?
Quick reading on my RTA yesterday w/pink noise was showing a roll-off after 6-7khz if i remember correctly. I don't know why people consider those 4'' diaphragm as ultrawide bandwith (20khz) maybe if you EQ them like hell, but they're not ribbon or air motion tweeters, that's for sure... Not their comfort zone.
Speaking of comfort zones, based on my (quick) tests so far:
760NEO (alu diaphragm): 1100hz-4500hz
950PB (beryllium diaphr): 500hz-3500hz
You can push both 1 octave higher, no problem, but then again my strong feeling is a good tweeter will get the job done better. A Beyma TPL150 or 200, a RAAL ribbon, etc...
If no low pass, what is the pattern of the 950PB in the highs please ?
Quick reading on my RTA yesterday w/pink noise was showing a roll-off after 6-7khz if i remember correctly. I don't know why people consider those 4'' diaphragm as ultrawide bandwith (20khz) maybe if you EQ them like hell, but they're not ribbon or air motion tweeters, that's for sure... Not their comfort zone.
Speaking of comfort zones, based on my (quick) tests so far:
760NEO (alu diaphragm): 1100hz-4500hz
950PB (beryllium diaphr): 500hz-3500hz
You can push both 1 octave higher, no problem, but then again my strong feeling is a good tweeter will get the job done better. A Beyma TPL150 or 200, a RAAL ribbon, etc...
oups, forgot to mention something important:
both 760 and 950 i have here are factory equipped with SHIMS, which helps the greater excursion from the lower crossing point.
7 mil thickness for the 760NEO and 5mil for the 950PB.
The tech guy from Radian told me the downsides of using those shims is a loss in efficiency and upper end FR. Not a problem in my case.
both 760 and 950 i have here are factory equipped with SHIMS, which helps the greater excursion from the lower crossing point.
7 mil thickness for the 760NEO and 5mil for the 950PB.
The tech guy from Radian told me the downsides of using those shims is a loss in efficiency and upper end FR. Not a problem in my case.
I also would've think that anything below 600hz should be pistonic-produced (cone driver) and that is precisely why i'm amazed (and thrilled) about using a CD that low.
I know very well what my Volt BM2500.4 is capable and i must say the 400-800hz region is a tricky one: you want some torque, some massive air movement, but at the same time you want precision and resolution. The most interesting i had before was some rather large (8'') cone drivers, but with low Mms for max resolution.
But now, with the Radian 950, i clearly have a new option.
Not much, really.
It's more like a support group i officially launched.
''Hi, my name is Jon''
- HELLO JON!
''Yesterday, my wife confiscated my horns...''
On page 20 we'll discuss on how gradually live with short horns and not be tempted by horn-enlargement ads.
Bigger horns go deeper...........in hertz.
---------------------------------------------------------------------Rick..........
Looking at my question is seems a bit mean spirited, it was not at all meant to be. Sorry about that.
What I was thinking about is my own inability to really judge a single speaker component if the rest of the system is for any reason unbalanced.
The open hole would change the LF no?
In any event, glad you are likeing it!
Barry.
very very limited impact and none audible: i just covered the holes and no sudden change.
Only listen to them for a couple of hours, and no ''cheat'' with a lower crossover point + EQ.
Will try later. At the risk of blowing two diaphragms.. 😎
But i can say right now that everything is as expected: the 950 is more at ease in the 500hz-1khz region than the 760, and the 760 is more at ease in the 4khz+ than the 950.
Needless to say, that is all very subjective. I might not even be able to spot them in a blind test...
Also the 760 is more efficient (113db v.s. 111db), at least that's real because i had to adjust my gains when i switched between them.
... Blind test or not, the 950PBbe gives me a lot of audiophile-pleasure. I believe its one of the best 5th and 6th-ish octave i heard in my life so far. Makes me realize how much audio material there is in the 5th & 6th.
if we are talking about a hornless CD for the mids, do we really need the Be diaphragm.
this thread makes me want to try a paper cone 2" CD (for mids, no horn) like the Faital Pro HMF200
FaitalPRO | HF Drivers | HMF200
this thread makes me want to try a paper cone 2" CD (for mids, no horn) like the Faital Pro HMF200
FaitalPRO | HF Drivers | HMF200
all the story is to know where you want to have the treble XO ?!
At least you use active + EQ so maybe it's less important than to cross near the M&F sensibility zone ? I'm worried when you talk to cross in this area and with two sort of technologie (compression then planar)... But I'm the first to think than proof is in the pudding : one has to try to know : 🙂
what is the 8" cone driver you prefer and you talked before please ?
At least you use active + EQ so maybe it's less important than to cross near the M&F sensibility zone ? I'm worried when you talk to cross in this area and with two sort of technologie (compression then planar)... But I'm the first to think than proof is in the pudding : one has to try to know : 🙂
what is the 8" cone driver you prefer and you talked before please ?