• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

IMF owners thread!

Yahoo question

I have subscribed to the Yahoo use group IMF-Electronics. It looks like there is not much communication going on thru that group. Does this AK group connect thru both forums? Problem with flame wars? any info is appreciated.

Luther Vandross easy listening vinyl thru the TLS80 this AM. Nice.
 
Hi,sometime new threads on IMF group, but not much these days.You have to start one and some member"s should respond.Today it's a sad day's for YES fan"s, Chris Squire lost is fight against cancer,RIP Chris,Yvan.
 
Here's a new one for me... "Split Baffle" Studio Monitors! You heard it from the Brits!!!

Here we have pair of historic IMF speakers.

They were given to one of my customers grandfathers in the early 70’s by ‘John’ from IMF UK, who was one of the directors and a good friend.

We cannot confirm if this is John Wright or John Hayes, but it is one of them!

They came into us in a very bad state… the cabinets were damaged and the drivers needed re-foaming, somebody had even played a game of noughts and crosses on the tops!!

They are thought to be prototypes, and have the very first driver, that have been heavily doped, not the KEF B200 drivers in the later models.

The baffles are split and not one piece baffles like in the TLS50… the levels of doping are different on both drivers, this I guess was to fine tune the drivers.


I assume those are Dalesford Drivers?

attachment.php
 

Attachments

  • $_57 (1).jpg
    $_57 (1).jpg
    83.9 KB · Views: 107
  • $_57 (2).jpg
    $_57 (2).jpg
    69.9 KB · Views: 53
  • $_57 (4).jpg
    $_57 (4).jpg
    49.6 KB · Views: 47
  • $_57 (6).jpg
    $_57 (6).jpg
    105.9 KB · Views: 49
  • $_57 (7).jpg
    $_57 (7).jpg
    74.8 KB · Views: 52
Last edited:
Hi,these woofer are probably Peerless,because some Studio came with KEF and some Peerless.Nice,please take close shot of X-over,Yvan.
 
Interesting, just like "The Studio" except I'm fairly certain mine have KEF drivers. Otherwise identical, except for the monaco mids.

attachment.php
 
Hi,take some shot of the back of the woofer,it is easy to reconize the frame of Peerless,I have a pair of Als-40 with peerless,but mine on one of the woofer have earth big magnet,the other one,the bottom woofer the magnet is like this one, just smaller.IT have Rubber surround on both woofer, not foam ,paper cone.Yvan
 
C-atle, if ever you need original mids,contact me,or I know some other AK member,have plenty of these original, in the IMF pictures I have seen couple of these on a table.Yvan
 
It seems because of the split baffle,they have different placement of woofer and mid,seems a bit higher then the last version,the woofer is a bit an angle,instead of straight.Yvan.
 
Hi,not shure M.Fried is the designer in true creator of IMF speakers,according to John Wright.It is John Wright and John Hayes who present the first Transmission line to him when he demonstrate is tonearm and cartridge.These 20 pages just talk about some facts M.Fried have experience over year's.I think he learn a lot from is IMF experience and from other designers,and has a great salesman can make you believed anything.Nothing against the man,but I have my doubt,Yvan.
 
When they demonstrate their tonearm and cartridge (Wright,Hayes).M.Fried talk about TL for the mid,but I have never see a Mid TL line in all of the knowing IMF until now except maybe these early version of studio monitor?Yvan
 
Surprizingly,no early version of 1968 monitor have been photograph,hope one day we gonna see at least one example of it.Yvan.
 
Yvan_donald said:
C-atle, if ever you need original mids,contact me,or I know some other AK member,have plenty of these original, in the IMF pictures I have seen couple of these on a table.Yvan
Click to expand...

Thanks for the offer. I actually have 2 different sets of IMF's with the mids to choose from. However, mine were recapped and new mids added at the same time all from Falcon, and I believe the caps were adjusted for the new mids. So I might be stuck.

I have to pull mine back out, have been going Tannoy DC for a while now, miss the bass but love the mid detail, which is not a IMF knock, mearly a Tannoy asset.
 
Okey C-atle,me I found my prof. better than ever,I can put more power in my speaker,the mid is more open,better transients,more clearer than before,these film caps made a huge difference.Now waiting for this active carbon stuff ,I think it will help to absorb more backwave in the mid tube,because at I volume i feel the tube behind the mid accentuate like an echo.If this carbon stuff grab the extra pressure of the surface cone,it will give me a much better natural sound at high volume.I am not the kind to listen at high volume but sometime for acoustic instruments and voice it is better to heard all the nuance in the music.Yvan
 
Yvan_donald said:
Hi,not shure M.Fried is the designer in true creator of IMF speakers,according to John Wright.It is John Wright and John Hayes who present the first Transmission line to him when he demonstrate is tonearm and cartridge.These 20 pages just talk about some facts M.Fried have experience over year's.I think he learn a lot from is IMF experience and from other designers,and has a great salesman can make you believed anything.Nothing against the man,but I have my doubt,Yvan.
Click to expand...

IMF got advice from Dr.A.R. Bailey and A.H. Radford on how to design T-lines when the company was first found.

After I.M. Fried's departure from IMF he and Wright came up with their own designs.
 
You are right,Dr.Bailey and A.H.Radford are probably the pioneer of TL, but John Wright and maybe some input of M.Fried to achieve a reference standard product with experimentation to higher level.Still today hard to beat this degree of perfection,Yvan.
 
You must log in or register to reply here.
Back
Top Bottom