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Multi-Way Conventional loudspeakers with crossovers

The best midrange driver (cost no option) for 3-way
The best midrange driver (cost no option) for 3-way
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Old 25th October 2010, 03:35 AM   #21
jacques rosenberg is offline jacques rosenberg  United States
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Default best midrange

The better midrange is the full range no crossover LOWTHER.you can use the DX-45 6 inch ( 95db ). With a woofer in the 30-80 Hz, without a crossover you can get a excellent loudspeaker.
Better if you buy the first and low cost PM6C and build a LOWTHER cabinet.
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Old 25th October 2010, 12:15 PM   #22
5th element is offline 5th element  United Kingdom
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Quote:
Originally Posted by 454Casull View Post
How exactly is a beryllium diaphragm a soft dome?

From what I recall, Accuton and AT drivers measure fairly well, but they aren't the best.
The Accuton driver linked to is one of the best on measured performance. Accuton has a lot of run of the mill drivers when it comes to measurements, but there are a few where they get it just right.

Of course you have to cross the C173-6-090 over low to circumvent the distortion peak and to minimise beaming, but I can't imagine this being too much of a problem.
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Old 26th October 2010, 04:26 PM   #23
Coytee is offline Coytee
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The best driver I've heard (used in a 2-way format so it doubled as mid/tweet) is the TAD 4002.

I certainly do not suggest that I've even heard 25% of the drivers out there much less 'all' of them. I do however, know that this was astoundingly good.
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Old 26th October 2010, 08:20 PM   #24
Scott L is offline Scott L  United States
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The best midrange driver (cost no option) for 3-way
Default TAD & Lowther

Quote:
Originally Posted by Coytee View Post
The best driver I've heard (used in a 2-way format so it doubled as mid/tweet) is the TAD 4002.

I certainly do not suggest that I've even heard 25% of the drivers out there much less 'all' of them. I do however, know that this was astoundingly good.
Greetings my friend, neighbor and audio buddy !

Do you remember which horn(s) you heard the 4002 on ? I have heard nothing but high praise for this unit, but, me personally have not heard them.
Right now, they are out of budget range, but, perhaps in a year or two. Are you thinking of changing drivers for your horns?
Along the lines of the OP, the best I have ever heard was a Lowther Dx-3 in an ORIS 250. That was while I was visiting Austin, but obviously chose to live here instead. As far as my own system goes, I have made tremendous progress, but still have a long way to go. None-the-less, as it stands now the system is quite enjoyable. I am working on the mid bass cabinets now, and hope to have everything done by summer 2011. I have buddies coming up from Florida... and I'd also like to have you over for a listen sometime in the not too distant future. It's been a while, I hope we can chat again soon.
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Old 26th October 2010, 09:13 PM   #25
s3tup is offline s3tup
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Let's draw some lines, find their interceptions, and in the end - find a description of "best suitable driver".

Materials used:
- Tweeter: Silk, tiny dome = precise, extended up to 20k, average body weight (haven't heared 'em, someone please confirm that this is what they are).
- Woofer: Paper, tiny magnet, light cone, lush paper sound.
Which midrange driver will suit both woofer and tweeter? Paper...

Then, let's check where we get by the driver excursion/area/crossover frequency.
The woofer FR seems to be usable up to 1kHz, yet we have the directivity issue kicking in at lower frequencies, and the "blap" curve on the impedance graph around 400Hz => something going on there with cone stiffness, i wouldn't use this driver beyond 400Hz.
Tweeter... Tiny silky dome with nice excursion. Although the FR is extended downwards, we are talking about high-output system, that is going to pump some air => high excursion required => raised crossover frequencies. 3.5k-4.5k at their best.

Now we can draft a mid-driver requirements:
- Cover 400Hz-4.5kHz range.
- Paper cone.
- Cope with double 10" woofers (!!!)

Target cone diameter: pair of 5", 6.5". Or even pair of 6.5" (we can't use 8" as this tiny tweeter wouldn't go that low).

5": SB Acousics 5", Scan-Speak Revelators, SEAS 15W Nextel.
6.5": Emm... Nada. There is no 6.5" driver that can go that high (4.5k). Even 3kHz is tough point.
8542 is nice lush sounding driver. 8531 is... i wouldn't call it best for the upper midrange, yet it has the "paper" signature that may suit both woofer and tweeter.



With 0.75" tweeter i wouldn't go beyond 4.5" midrange => the best one for 10" fluffy paper woofer is 13M/8640, as well as for Hiquphon, crossed at 1.4kHz. Yes, 1.4
You'll get some weird speaker... 1.2-1.4kHz - 4-4.5kHz crossover points. Weird
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Old 26th October 2010, 09:36 PM   #26
454Casull is offline 454Casull  Canada
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Quote:
Originally Posted by 5th element View Post
The Accuton driver linked to is one of the best on measured performance.
Link?
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Old 26th October 2010, 09:53 PM   #27
TheShaman is offline TheShaman  Europe
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ATC SM75-150S

Subjectively speaking, the only midrange reproduction I enjoyed more was that of the Quad 2905s (but with all their known limitations in max SPL etc).

Last edited by TheShaman; 26th October 2010 at 09:55 PM.
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Old 26th October 2010, 09:57 PM   #28
merlin el mago is offline merlin el mago  Europe
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Quote:
Originally Posted by TheShaman View Post
ATC SM75-150S

Subjectively speaking, the only midrange reproduction I enjoyed more was that of the Quad 2905s (but with all their known limitations in max SPL etc).
+1
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Old 27th October 2010, 12:58 PM   #29
lbstyling is offline lbstyling  United Kingdom
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I built seas excel 3 ways a few years back, followed by accuton monsters that were a considerable step up in some respects, but upsettingly for me I recently found the atc mid dome is so far ahead I could cry.

how many times have I heard comments like ' the difference between_____ and______ is night and day.

Im afraid for whatever reason, in this case the difference is genuine.

No mid ive ever heard is anything like as revealing as the atc.
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Old 27th October 2010, 03:45 PM   #30
_henry_ is offline _henry_  Australia
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atc dome is one of the best!
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