HIFICRITIC audio review magazine
HIFICRITIC FORUMS
New Issue: Vol 7, No 1
HIFICRITIC
Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

3 Pages123>
Martin Colloms Offline
#1 Posted : 19 February 2012 15:06:48(UTC)
Martin Colloms


Rank: Administrator

Joined: 15/07/2008(UTC)
Posts: 1,847

Was thanked: 8 time(s) in 8 post(s)
Loudspeakers; what is your favourite system technology?

(driver technologies may follow)

In no particular order we have ( AND SUGGESTIONS WELCOMED)

1. Box n cone ( sealed, line and vented variations )

2. Open Panel ( magnetic and electrostatic )

3. Horn

4. Full range single driver

5. Omni directional box

6. Dipole / open baffle

7. Controlled directivity (Gradient)

8. Active, analogue and DSP

While I hear some good things from all of these technologies, so far I seem to rely on large reputable, vented box three way moving coils.

perhaps not the best of anything but avoiding the worst

Martin Colloms



hifistan Offline
#2 Posted : 19 February 2012 19:05:20(UTC)
hifistan


Rank: Administrator

Joined: 18/11/2008(UTC)
Posts: 759
Location: Indiana, USA

Was thanked: 5 time(s) in 3 post(s)
Also 9, hybrid systems. I have used several good ones over the years; cone-electrostat ones like the Janzen 600 and B&W DM 70; Ionic- cone ones like the B&W P2H and ribbon tweeter with cones like the Leak 3090. I used Quad from 1964 to the early 90s and Apogees from 1992 to the present. All have had virtues but I use mostly all cone systems now as they have the fewest eccentricities. Spendor and GamuT these days with B&W 805 Matrix for HT.
Pete_w Offline
#3 Posted : 19 February 2012 21:54:50(UTC)
Pete_w


Rank: HIFI Guru

Joined: 28/07/2010(UTC)
Posts: 431
Location: Cambs, UK

Thanks: 1 times
Was thanked: 2 time(s) in 2 post(s)
Anything without a crossover where I can hear it BigGrin

Currently use ML electrostatic hybrids, crossover at 250Hz. Much younger, used Robin Marshall's Eposes with the main driver driven full-range and the tweeter arriving at 5KHz or so - coloured as hell, and with significant limitations, but my word, they communicate! Especially at the price. Between the two I had a pair of more "conventional" speakers - ProAc Response 3.5s - and never quite got on with them. Chris Liaw's Etude design with the twin BMRs sounded good whe I heard it, if on a somewhat smaller scale than I'd need. Big box'n'cone machines, even quite good ones, just don't seem to do it for me. N802s, for example. Single-driver speakers that don't quack or shout I'M A HORN - I'm thinking the Voxativ room at the last Whittlebury show, for example - I generally love, provided that they either "do" bass or that it can be kludged on in a convincing manner.

It would appear that different listeners are sensitive to different aspects of reproduction. For me, it seems to be crossovers. My take on "what I like" is something that's dead coherent in the time domain, and I would appear to be willing to put up with significant aberrations in the frequency response, and/or colouration, in order to get it. But then the music that I like is predominantly non-orchestral - blues, rock, folk, jazz, etc - and relies on "timing" to communicate its meaning, rather than precise timbre. What does timbre mean in the context of an electric guitar recorded through a mixing desk, anyway?

I'd love to hear those - what are they called, Fujitsu thingies - Eclipse, that's it. Suspect I'd like them - if I could find a "fast" subwoofer - but have never heard them.

Edited by user 19 February 2012 21:58:17(UTC)  | Reason: Not specified

darkmatter Offline
#4 Posted : 19 February 2012 22:43:33(UTC)
darkmatter


Rank: Administrator

Joined: 19/09/2008(UTC)
Posts: 1,667
United Kingdom
Location: UK

Thanks: 8 times
Was thanked: 5 time(s) in 5 post(s)
Best results I have had to date are from a large 4 way system I designed from sratch in the mid 90s as a youngster.

The 10s may well see me design a large sealed box system :)

Like Martin I have experience of other designs Horns, panels and the like and find it fun (a challenge) to optimise good performance from many types of design.

Edited by user 19 February 2012 22:45:16(UTC)  | Reason: Not specified

jostber Offline
#5 Posted : 19 February 2012 23:05:26(UTC)
jostber


Rank: HIFI Novice

Joined: 04/08/2011(UTC)
Posts: 96
Location: Skien,Norway

And some more:

10. Voxativ field coil speakers
11. Planot speakers 3D diapraghm: http://www.planotspeaker.com/Planot/Home.html
darkmatter Offline
#6 Posted : 19 February 2012 23:15:45(UTC)
darkmatter


Rank: Administrator

Joined: 19/09/2008(UTC)
Posts: 1,667
United Kingdom
Location: UK

Thanks: 8 times
Was thanked: 5 time(s) in 5 post(s)
jostber wrote:
And some more:

10. Voxativ field coil speakers
11. Planot speakers 3D diapraghm: http://www.planotspeaker.com/Planot/Home.html


Field coil bass will be an integral part of my next big system, maybe mid as well there is a 19" French unit that could offer me the big bass I hanker after with tuneability the coils offer
Togil Online
#7 Posted : 20 February 2012 10:38:08(UTC)
Togil


Rank: HIFI Veteran

Joined: 04/10/2008(UTC)
Posts: 537
Location: Oxford

Hope to listen to KEF Blades shortly , do they count as 1 or 4 in the list ?
Hans
jostber Offline
#8 Posted : 20 February 2012 12:02:12(UTC)
jostber


Rank: HIFI Novice

Joined: 04/08/2011(UTC)
Posts: 96
Location: Skien,Norway

Ear's Primary Drive loudspeakers might also be a special technology:

http://www.ear-yoshino.com/products.php?catId=6#
mat Offline
#9 Posted : 20 February 2012 12:59:07(UTC)
mat


Rank: HIFI Guru

Joined: 12/11/2008(UTC)
Posts: 427

Togil wrote:
Hope to listen to KEF Blades shortly , do they count as 1 or 4 in the list ?


1.
ashleym Offline
#10 Posted : 20 February 2012 13:25:52(UTC)
ashleym


Rank: HIFI Veteran

Joined: 02/02/2009(UTC)
Posts: 901
Location: uk

Thanks: 1 times
Was thanked: 2 time(s) in 2 post(s)
Box and cone because I can afford them.

Open panel and baffle because I cant afford them but I like their sound.

Klipsch horns because they drive a room.

Pete_W have you looked at the Acoustic Precision FR1s? A Tom Evans design. Basically a Jordan full range driver in a polystyrene box. IIRC a clamshell cabinet and fuzzy covers. I can see some for sale not too far from me (I have no links to whoever is selling, if I did I might buy them myself!)

http://www.hifi-forsale....d_id=1165&offset=180
hifistan Offline
#11 Posted : 20 February 2012 16:04:10(UTC)
hifistan


Rank: Administrator

Joined: 18/11/2008(UTC)
Posts: 759
Location: Indiana, USA

Was thanked: 5 time(s) in 3 post(s)
I had forgotten that I had used the Jordan-Watts full range. That was , I think, in the later 60s. I had both the aluminum and titanium ones if I remember correctly. A friend who was a professional cabinet maker made the boxes for them and was so taken that he bought them from me and was for a time the American agent for them. I think he entertained Mr Jordan when he came over to the Chicago CES about that time but I can't recall meeting him myself to my regret. My friend was displaying the drivers in cabinets he had made at the show that year; he continued to make custom speakers based on them for years afterward.
bencat Offline
#12 Posted : 20 February 2012 16:39:24(UTC)
bencat


Rank: HIFI Addict

Joined: 23/05/2009(UTC)
Posts: 99
Location: Liverpool

My favourite has always been Electrostatic panels and I have owned Quad and had in my previous listening room Martin Logan both which sounded superb . Regretfully I have moved and my current music room is much smaller and not the right configuration for any sort of panel speaker. So now I have to use the good old box with coils .

The move across was originally very painful as I struggled to find any box speaker that had the transparency and neutral sound I was used to and looked for. Many came and went straight out very qucikly till in the end by chance I was allowed to hear some Harbeth units. These did much of what I was looking for and have been in use ever since. I f I had the money would love to upgrade my current ones to Monitor 40's but not really an option .

Better still if I came in to some serious money would change house and ensure that I got a music roon large enough to let me go back to panels .
System Theta Data Basic II Transport , Perpetual Technologies PA-1 Upsampler, PA-3 Dac , Concordant Exhillirant Pre ,Krell KSA50 Power , Harbeth Compact II Monitors .
Pete_w Offline
#13 Posted : 20 February 2012 20:20:08(UTC)
Pete_w


Rank: HIFI Guru

Joined: 28/07/2010(UTC)
Posts: 431
Location: Cambs, UK

Thanks: 1 times
Was thanked: 2 time(s) in 2 post(s)
ashleym wrote:

Pete_W have you looked at the Acoustic Precision FR1s? A Tom Evans design. Basically a Jordan full range driver in a polystyrene box.


Thanks very much. Never heard of them, and Google has just failed to furnish me with an image, but I can guess the idea. Am not speaker shopping at the mo, though - no current job, and anyway I love my 'Logans; and with a 7-year-old child with a severe learning disability running around, they fulfil the #1 primary requirement, beyond sound quality, of being pretty much indestructible! That's why they were bought (second-hand, unseen and unheard, swapped for the ProAcs with their oh-so-vulnerable silk-dome tweeters...), the fact that they sound so good is a happy accident! Not the prettiest things in the world (my wife tells me :-) ), but you can't have everything...

I'm lucky enough, nowadays, to have a room that's 20ft (-ish) square with a higher-than-average ceiling, and I like punch and dynamics, so if I were speaker-shopping then small boxes are probably out of consideration, I need to shift some air... Anyway, we've gone off-topic...

dcathro Offline
#14 Posted : 21 February 2012 08:25:18(UTC)
dcathro


Rank: HIFI Veteran

Joined: 18/09/2008(UTC)
Posts: 513
Location: Melbourne

Martin Colloms wrote:


While I hear some good things from all of these technologies, so far I seem to rely on large reputable, vented box three way moving coils.

perhaps not the best of anything but avoiding the worst

Martin Colloms





Martin,

Do you have a preference for vented over sealed bass, or is that coincidental?

Cheers

David
Geoff P Offline
#15 Posted : 21 February 2012 19:54:29(UTC)
Geoff P


Rank: HIFI Novice

Joined: 01/11/2008(UTC)
Posts: 49
Location: Across the Narrow sea

At one time I had a pair of Totem Mani 2s which were vented isobariks. Amazing bass depth for what amounted to a relatively large volume stand mount.

Currently using Kharma Ceramique 3 way vented using a mix of Kevlar and ceramic diaphragms
paskinn Offline
#16 Posted : 21 February 2012 20:58:22(UTC)
paskinn


Rank: HIFI Addict

Joined: 13/10/2009(UTC)
Posts: 193
Location: east sussex

I use voxativ field coils in my Voigt corner horns (1934 and 1938.) However, use field coils only with batteries if you want to get the best from them. They are very very fussy about power sources. As for overall preference, like some others I like stuff with no crossover. So, big planars/dipoles or something like a Voigt. I suspect much of this issue is down to how different types of speaker couple with the room. Boxes perhaps sound 'wrong' to my old and jaded ears because of the way they radiate into the room. In other words, it could be that the 'problem' is not the box, but the way such speakers drive a room.In which case better and better cabinets and drivers will not solve the problem.
mat Offline
#17 Posted : 22 February 2012 09:29:13(UTC)
mat


Rank: HIFI Guru

Joined: 12/11/2008(UTC)
Posts: 427

paskinn wrote:
I use voxativ field coils in my Voigt corner horns (1934 and 1938.) However, use field coils only with batteries if you want to get the best from them. They are very very fussy about power sources. As for overall preference, like some others I like stuff with no crossover. So, big planars/dipoles or something like a Voigt. I suspect much of this issue is down to how different types of speaker couple with the room. Boxes perhaps sound 'wrong' to my old and jaded ears because of the way they radiate into the room. In other words, it could be that the 'problem' is not the box, but the way such speakers drive a room.In which case better and better cabinets and drivers will not solve the problem.


A fundamental problem of the box speaker is that the ratio of reflected to direct energy is too low. Omni, and dipole both have a greater proportion of reflected energy to direct energy and hence can sound more natural in-room if set up correctly.

However the vented box speaker gives the most benefits for most people, and that is why it is the most popular. Comparatively: low cost, high spl, small size, good bandwidth, good dynamic range, good aesthetic appearance.

Horn speakers in free space have much less reflected energy, but more if they are placed in a corner, in fact probably more than box speaker, depending on listening position and radiation angle.

Of course your brain learns how to listen, and a speaker type other than what you are most used will probably sound wrong until you adjust to it.

mat.
malteser Offline
#18 Posted : 22 February 2012 13:38:48(UTC)
malteser


Rank: HIFI Guru

Joined: 15/05/2009(UTC)
Posts: 350
Location: Berkshire, UK

Was thanked: 1 time(s) in 1 post(s)
Box'n'cone for me. Nowadays prefer sealed units generally, not being the bass-head I used to be, and hating the warmer artificial nature of ported bass in most cases.

Always wanted to like horn speakers but never really got on with them. Wanted to like electrostatics - love the midrange qualities but despair at the lack of drive. As for the hybrids (MLs) the integration remains a problem as far as I'm concerned.

In theory, DSp controlled active should be the panacea, but my experience has been disappointing - it always seems to end up distilling the music out of the sound.
Regards,
Frank.

All opinions are my own and do not reflect the opinion of any organisations I work for, except where this is stated explicitly.
audiorene Offline
#19 Posted : 23 February 2012 07:50:08(UTC)
audiorene


Rank: HIFI Newbie

Joined: 27/12/2011(UTC)
Posts: 6
Location: Netherlands

He guys,

Did we forget the good old transmission line? When build like it should be you get a very even and deep bass response without the reflex bump. Listen to any PMC and you will see my point. I have used a pair of Rogers monitors with Kef B139 long, long time ago. Have been listening to many speakers later on, never got the bass really right. Have been using subwoofers in reversed phase to get rid of to much bass from reflex ports. Not optimal and most of the noise goes to the neighbours. Finally with PMC 90% of the room problems are gone.

Apart from that, the best speaker I ever heard is a Blumenhofer Wiki horn. Do not know anything that beats it, very costly, say 300.000 euro's a pair. If only I could afford them and have the space. Keep on dreaming.

No speaker is the best. I like panels like Magnepan, Horns like Avant Garde and Blumenhofer, sealed boxes from Harbeth, transmission lines and even some reflex systems. The best speaker is the one that makes you happy and fits (physical and most of all acoustical) in your listening room.

Regards,
Rene
Togil Online
#20 Posted : 23 February 2012 09:49:17(UTC)
Togil


Rank: HIFI Veteran

Joined: 04/10/2008(UTC)
Posts: 537
Location: Oxford


Had a listen to the Kef Blades yesterday, very promising..single apparent source although they seem to forget that Quad also have that. I believe PM has heard them
Hans
Users browsing this topic
Guest
3 Pages123>
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.