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IMF owners thread!

beekeeperDan said:
Hi, I have some IMF ALS40 MK1 speakers I am restoring and I am struggling with the Midrange foam. These speakers had been badly refoamed with an incorrect part at some point and I appear to be missing a grey ring that I can see in other photos of these speakers, I'll post an example shortly. Am I missing something? I believe these are ELAC 4EM/101 speakers and goodhifi do refoam kits but the OD seems wrong, except if I am missing something (the grey ring which looks like cardboard?). Any help greatly appreciated. Thanks, BKD
Click to expand...

You can get the right foam for these midrange drivers from this company in the Netherlands:

https://speakerrepairshop.nl/nl/lui...-101-middentoner/a-3036-10000028#.WKxuwlUrJhE

I used the kit from these guys to re-foam my drivers a few years ago. Here is a link to the post where I describe it:

https://audiokarma.org/forums/index.php?threads/imf-owners-thread.509555/page-70#post-10453045
 
I think you'll find that those kits were from the seller "Good HiFi" on eBay for a number of years. I'm happy to stand corrected on that.
 
Hi IMF owners wondering does anyone have a recommendation for best speaker placement set up for the IMF tls-80mkii? Currently I have mine approx half a foot away from the wall with minor toe in and approx 4 feet apart any advice welcome thanks!
 
Hi, it will be better to have more than 4 feet,how far are you from the speakers? The BIG IMF are vey easy to place, the side I don't think you get closer to the wall, 7-8feet should be good.Your room is very small?
 
Yes have to agree with Yvan, that 4 foot is way too close to each other.

They should be roughly the same distance apart, maybe a little less as what you are sitting in front of them and yes toed in towards the listening position a little.
 
Yvan_donald said:
Hi, it will be better to have more than 4 feet,how far are you from the speakers? The BIG IMF are vey easy to place, the side I don't think you get closer to the wall, 7-8feet should be good.Your room is very small?
Click to expand...
I’m 3 meters from the speakers the room is longer approx 5.5meters long X 3.9 meters wide I could try move them further apart just need to move a few things around
 
Ok quick update got them approx 6 feet apart now measuring from the inner ends of the speakers sound stage sounds much better already
 
Hi there! I have a set of IMF Compact Monitor III's with one bad woofer. It's the IMF 8/30. Would anyone know of another model driver that I could substitute? There's a pair of 8/22's available but I'm wondering if they would change the voicing of the speakers too much. I think the 8/30 was used as the low/sub driver in the ALS 40'S. Any ideas? I'd love to get these up and running!
 
Does Audio Karma have awards for procrastination? If so, I might be a candidate.

I posted about scoring an original pair of IMF ALS-40II's back in March 2014, and have finally "finished" them. The cabinets have been sanded and oiled. I built custom mass loaded stands to get them to the correct height. Electrical and mechanical refurbishing includes new Alcaps and tweeter diaphragms from Falcon, new Ohmite resistors, all new wiring, modern binding posts, and new foam surrounds on the mids. I was also able to repair a patch of doping material that had lifted from one Elac mid-woofer by dabbing the area with acetone to "wet" the material and re-attach it.

Thanks to all who contributed to this thread, I couldn't have completed this project without the help, even if it took me 6 years!

IMF 1a.jpg IMF 2.jpg
 
The ALS-40 is probably the most under rated IMF speaker made, it's pinnacle was the last variant with the "a" on the end of it's model number, but regardless all variants along it's time line were fantastic nevertheless. Yours are the second issued version being the Mk II's and these had the beautiful ally frame surround which became iconic to the IMF brand. You've done a sterling job as can be seen and the wait seems to have certainly been worth it.

Enjoy them now and for many years to come.
 
Found some spareparts for my RSPM's, NOS HF 1300MkII including original packaging and gaskets.
It's always a special feeling to aquire something this old that's never been used.
According to Jerry from Falcon these MkII's are a perfect replacement for the originals.
I'm still using my RSPM's on an almost daily basis but I'm not running them from the Pioneer SPEC4 in my avatar but from a set of Hypex NC400 class D amps, the combination sounds absolutely fabulous!

Kind regards, Peter

IMG_8163.jpg IMG_8164.jpg IMG_8165.jpg IMG_8166.jpg
 
If I'm correct those Mk II's were made for speaker "kit usage" and thus the advertising on the front of them. I do prefer the unadvertised look much more as it's far classier IMHO.

As far as amp changing is concerned, I to have on specification a far better amp than my Spec 4, but I seem to gravitate back to the Pionner variant as it's just a tad warmer to my ears than many MOSFET type amps. I have a bit of a tendency to swap amps around from time to time, not quite sure why, but probably more so because I can.

The full Pioneer Rack system with a Spec 4 (not Spec 2) included is always aesthetically one of the best looking sound systems ever made, again IMHO and yours Peter is right up there at the top.
 
Hi, if Peter want no advertising,it is just a sticker you can remove ,or use the old facade off the old one. I have many of these mk 2 bought used like new but 16 ohm? long time ago ,I have to verified.
 
IMF_Pioneer said:
If I'm correct those Mk II's were made for speaker "kit usage" and thus the advertising on the front of them. I do prefer the unadvertised look much more as it's far classier IMHO.

As far as amp changing is concerned, I to have on specification a far better amp than my Spec 4, but I seem to gravitate back to the Pionner variant as it's just a tad warmer to my ears than many MOSFET type amps. I have a bit of a tendency to swap amps around from time to time, not quite sure why, but probably more so because I can.

The full Pioneer Rack system with a Spec 4 (not Spec 2) included is always aesthetically one of the best looking sound systems ever made, again IMHO and yours Peter is right up there at the top.
Click to expand...

The advertising on the front is indeed a sticker, you have to remove it also to disassemble the tweeter. It's quite a robust sticker, if you peel it off slowly it doesn't get damaged.
The Hypex nCore amps are certainly not warm sounding, but also not harsh at all. The control, detail and stereo image is (to my ears) miles ahead of the SPEC.
You're right about the looks of the SPEC rack, I just love the styling, I was drooling over the brochure in '77/'78 but the cost was of course way over my budget.
I had HPM150's but could not live with their sound, sold them to buy the RSPM's, one off the better decisions in my life :-)

have fun, Peter
 
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