For vocals, both of the drivers, mid and tweeter matter. I agree
with you on higher sensitivity accuton driver for midrange.
I am really undecided on this one. According to danny_66 the C173-6-090 works well with the RAAL 140-15 as per his thread here http://www.diyaudio.com/forums/multi-way/226914-my-refspeaker.html but for someone like me doing open baffle with the RAAL dipole 140-15D AM, perhaps the new 5" would be better if the SPL could be raised through a small horn either side...
The two Scanspeak 12MUs per side I am currently using work real well, and wonder if two of the new 5" would be in order, but that gets real expensive quick.
The two Scanspeak 12MUs per side I am currently using work real well, and wonder if two of the new 5" would be in order, but that gets real expensive quick.
Last edited:
I have trouble understanding why would you want to build with
other drivers if 12MU's already play really well. I do understand
the need for build though. If I were not completely satisfied with
how midrange sounded, I would have either changed the voicing
philosophy or used a different tweeter.
Last edited:
Well the problem is I have changed from an active four way setup to an active three way setup. I am trying to cross over below the vocal frequency, and the 4" drivers are a tad small to reach that low without distortion. I am currently crossing over at about 180Hz but would like to cross over lower to make the bass duties easier.
I heard the accuton 90s at the Sydney HiFi show a few years back and was impressed by the crystal clear sound. I could see them being a great match for the ribbons. The 12MUs I can always use in my home theatre speakers.
I think four of the new 5" looks the way to go...
I heard the accuton 90s at the Sydney HiFi show a few years back and was impressed by the crystal clear sound. I could see them being a great match for the ribbons. The 12MUs I can always use in my home theatre speakers.
I think four of the new 5" looks the way to go...
Last edited:
Hi Silent,
I would bet that something went wrong with the way you made your
drivers blend with each other. Did you post anywhere on this forum
pictures and measurements? Could you describe as exactly as you
can how you chose your active filters? I have done so many different
design approaches and each one of them performed brilliantly, so I
concluded the secret lies within voicing and using appropriate driver
technology. Once I had a magnetostat for a tweeter and I have no
desire to make the same mistake twice.
I would bet that something went wrong with the way you made your
drivers blend with each other. Did you post anywhere on this forum
pictures and measurements? Could you describe as exactly as you
can how you chose your active filters? I have done so many different
design approaches and each one of them performed brilliantly, so I
concluded the secret lies within voicing and using appropriate driver
technology. Once I had a magnetostat for a tweeter and I have no
desire to make the same mistake twice.
If I was using a monopole 140-15D AM that would be the preferred method, but the dipole has an undesirable gap at the top making MTM more difficult.
So would probably go TMM with MM reversed.
Even if the the distortion reduction will be insignificant as the illuminators have extremely well built motors the front-rear dispersion is not symmetric but would be if you inverted one of them. Though if you cross below that point where the rear dispersion fall soff which should be somewhere around 2000 hz then you will be fine, but with your current tweeter I do not think that is possible.
Last edited:
As I've mentioned on a couple of other threads, the BG Neo drivers are excellent with RAAL tweeters. Hard to imagine any cone being such a seemless match, but in fairness the best cone midrange I've heard in familiar circumstances is the Audax HM100ZO, with the Scan 10F a close second. No doubt the 12MU is very good, but the BGs sound less like drive units over their operating range than anything else I've heard here.
Well, the OP said 'cost no option', then one of these should be considered.
Speaker Drivers | hifisound.de | purchase online
The gorlich sandwich cone design is used in some of the best speakers ever sold.
Speaker Drivers | hifisound.de | purchase online
The gorlich sandwich cone design is used in some of the best speakers ever sold.
And there not even as dear as some of the Accuton drivers, but unfortunately I have never heard them to buy them unheard.
The BG Neo 10 never really did it for me... I have heard it with the Neo 3 but I didn't really like it. Would be interesting to hear it coupled with the RAAL though for a fresh comparison.
If I didn't know the price wanted for a Goerlich driver, I would say under
70 €/pc just by looking at the frame. The price tag works miracles.
I guess your bating mode is ON
.Finally ? :
Does we have to split this medium range to have the best of two world : details and fastness which match the tweeter and dynamic and air moving which try to do the bridge with the high-medium and the low end but with light and fastness ?
What were the sensibility rerquirement in the OP interrogations ?
medium splited :
high-mid : around (?) 400 ( < 700 hz ?) to 3000 hz : B&G Neo 8 serie (S?)
low-mid : around (?) to 400 ( < 700 hz ?) :
light paper if high efficienty like the 8" PHL1220 (but suround maid with foam: solidity ? and Qts not maid for sealed) or a pro 10/12" (mms < 30/40 g).
If low efficienty, easier choices of course : all the good brands advised in the thread: maybe here a SEAS W22 (perfect below 800 hz to push air without distorsion and low Fs (but Fs too near in relation to the low end bass driver?)
I have the same interrogations than the OP and think like Cal Weldon second post but with the effcienty as one more parameter : around 94 db to try one day airy tubes amps :
first driver: Neo 8 S at 94 db (around Studiotech or Juhazi fellows designs)
Then try to imagine the rest around : Raal above (but the XX° century prices even if the quality is here! Ok, OP said no price involved!)
Low end High Efficienty: < 80-150 hz (?) : sealed : pro 15" paper (but the fractioned cone modes with paper at those frequencies for Audiophile high end requirement ????)
Low end low efficienty : Davis 15" or Sealed SB 15" with "digital" amp & XO or all the good ref above in the thread (also more easy to choose)
Here Vas requirement are important to try the littlier cabinet than a 15" and physic allow for this < 80 (-150) hz range ?
Can't find a "unique" driver for medium which give me the desire to try a future design and risk money (have a flat second order slope from 125 hz to 2600 hz ; 85 DB medium today).
Just StigErik design maybe seems a temptation (but < 94 db) with B&G RD 75...which seems not maid with serious fabrication anymore (more than 2 posts for a problem becomes a habit !)
Sorry to be long.
Does we have to split this medium range to have the best of two world : details and fastness which match the tweeter and dynamic and air moving which try to do the bridge with the high-medium and the low end but with light and fastness ?
What were the sensibility rerquirement in the OP interrogations ?
medium splited :
high-mid : around (?) 400 ( < 700 hz ?) to 3000 hz : B&G Neo 8 serie (S?)
low-mid : around (?) to 400 ( < 700 hz ?) :
light paper if high efficienty like the 8" PHL1220 (but suround maid with foam: solidity ? and Qts not maid for sealed) or a pro 10/12" (mms < 30/40 g).
If low efficienty, easier choices of course : all the good brands advised in the thread: maybe here a SEAS W22 (perfect below 800 hz to push air without distorsion and low Fs (but Fs too near in relation to the low end bass driver?)
I have the same interrogations than the OP and think like Cal Weldon second post but with the effcienty as one more parameter : around 94 db to try one day airy tubes amps :
first driver: Neo 8 S at 94 db (around Studiotech or Juhazi fellows designs)
Then try to imagine the rest around : Raal above (but the XX° century prices
even if the quality is here! Ok, OP said no price involved!)Low end High Efficienty: < 80-150 hz (?) : sealed : pro 15" paper (but the fractioned cone modes with paper at those frequencies for Audiophile high end requirement ????)
Low end low efficienty : Davis 15" or Sealed SB 15" with "digital" amp & XO or all the good ref above in the thread (also more easy to choose)
Here Vas requirement are important to try the littlier cabinet than a 15" and physic allow for this < 80 (-150) hz range ?
Can't find a "unique" driver for medium which give me the desire to try a future design and risk money (have a flat second order slope from 125 hz to 2600 hz ; 85 DB medium today).
Just StigErik design maybe seems a temptation (but < 94 db) with B&G RD 75...which seems not maid with serious fabrication anymore (more than 2 posts for a problem becomes a habit !)
Sorry to be long.
If I didn't know the price wanted for a Goerlich driver, I would say under
70 €/pc just by looking at the frame. The price tag works miracles.
I guess your bating mode is ON
If you haven't heard a Gorlich bass/mid in action, then you are just speculating.
I have.....
Magico speakers were once using the gorlich mids, but seem to now have shifted to making their own drivers with carbon nono-fibers cones. However, the cones still look very similar to the gorlich cones with the exception of the patchwork pattern now evident from the carbon fiber construction.