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IMF owners thread!

Hi,they have the same DNA,the sound will be similar, the studio maybe more open in the mid but bigger is better,more sound pouding, less thin overall sound.Studio are great speaker and very complete in term of detail and sound.The Tls 80 model Mk I - or MkII, Studio model?.
 
Yvan, thanks for your response. I have the TLS-80 MkII models. I think the Studio model I will be buying is just called "The Studio."
 
They are a four-way speaker. I won't be picking up the speakers for a few more days so I do not currently have any pictures to share. I will take some pictures next week.
 
They are indeed The Studio, as I believe I sold them to him. :) Here is my initial post on them, http://audiokarma.org/forums/index.php?threads/imf-the-studio.562886/page-2 and here is there first post on AK http://audiokarma.org/forums/index.php?threads/thrift-store-speakers-surprize.495407/

I have to say, I'm missing the IMF's. I now have Chapman T7 ala 2004, which are wonderful in there own way, but are surpassed in memory at least by the ability of the IMF to play very dynamic and lower volumes. They are different speakers by far.

I still have my super compacts but also sold my CM3's.
 
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I'm joining the club!!!!
Just bought a beautiful all original, all working, with original documentation, set of RSPM MK IV.

Had a quick listen, they sound much better than I remembered, I am a very happy man!

IMG_4110.JPG IMG_4111.JPG IMG_4112.JPG

Price was resonable, only thing missing are the original stands, you can't have it all.

kind regards, Peter
 
petervv said:
I'm joining the club!!!!
Just bought a beautiful all original, all working, with original documentation, set of RSPM MK IV.

Had a quick listen, they sound much better than I remembered, I am a very happy man!

Price was resonable, only thing missing are the original stands, you can't have it all.

kind regards, Peter
Click to expand...

Those look fantastic.
 
I have been living with The Studios for a couple of weeks now, and I think they are amazing speakers. I prefer them to my TLS80s. The Studios don't go as deep as the TLS80s, but they are better balanced and more detailed. I like them so much that both the TLS80s and my Snell Type A/III have been sitting idle since The Studios moved in.
 
Hey everyone -- I recently acquired a pair of Super Compact II's but have no amp to power them. The idea is to use them to play streaming music but eventually I'd like to hook a TV up to the amp as well. Does anyone on here use them with an amp that has digital connections? I was looking at Cambridge or NAD. Any advice would be great. Thanks!
 
Honestly I've yet to hear my super compacts sound bad, they match up with lots of gear well, same as the studios. My last pairing, don't laugh, was with a Sharp SD-EX100, and it was a fantastic combination running in the main room of my house 35x14. Was not critical listening, but I was floored by how well it did. I'm still trying to get my SO to allow the setup back in place.
 
c-atle-79bay said:
Honestly I've yet to hear my super compacts sound bad, they match up with lots of gear well, same as the studios. My last pairing, don't laugh, was with a Sharp SD-EX100, and it was a fantastic combination running in the main room of my house 35x14. Was not critical listening, but I was floored by how well it did. I'm still trying to get my SO to allow the setup back in place.
Click to expand...

Thanks for your reply and good to hear that you've yet to hear them sound bad!

Unrelated to powering them, do you have any advice on how to clean up the cabinets? They were sitting around for ages at my grandparents place and are covered in dirt and scratches. Anything I can polish or oil them with that won't do more damage?
 
c-atle-79bay said:
Those look fantastic.
Click to expand...
Thanks, I'm very happy with them!
I will construct stands from hardwood, found the dimensons on the IMF-Electronics group on Yahoo.
I investigated recapping and I was tempted to use MKP's instead of the Elcaps but after some reading it's clear the (frequency dependent) ESR of the Elcaps was part of the filter design so I will order the Falcon Alcap kit which should keep the voicing original.

The cosmetics of the set is really amazing, hardly a scratch on the veneer and the units look new.
I will post my progress in a few weeks!

regards, Peter
 
There must have been a design - production change from 1977 as mine have different values compared to the IMF schematic crossover in the picture below. Mine are the earlier versions pre-1977 as they have the white colour surrounds in the mid-woofer.

Early version value caps;
IMAG0313.jpg IMAG0314.jpg

1977
imf.jpg
$(KGrHqZ,!i!FB,k!E+S+BQbFEwhDGg~~60_57.jpg
 
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petervv said:
Thanks, I'm very happy with them!
I will construct stands from hardwood, found the dimensons on the IMF-Electronics group on Yahoo.
I investigated recapping and I was tempted to use MKP's instead of the Elcaps but after some reading it's clear the (frequency dependent) ESR of the Elcaps was part of the filter design so I will order the Falcon Alcap kit which should keep the voicing original.

The cosmetics of the set is really amazing, hardly a scratch on the veneer and the units look new.
I will post my progress in a few weeks!

regards, Peter
Click to expand...

I installed the capacitor kit from Falcon today:

IMG_4143.jpg

IMG_4147.jpg

I checked all old and new caps on my Philips PM6304 RCL meter at 1kHz, to my surprise none of the old caps were drifted more than 10% and the ESR is only very slightly higher than the new caps.
Difference is sound is minimal, maybe a bit more detail and overall a bit brighter, which I don't necessarily think is a good thing, I'll let them run in before final judgement.

I inserted the component values on the schematic and the component designators on a photo of the PCB, maybe helpful for others:

RSPM Mk IV crossover.jpg

RSPM Mk IV crossover PCB.jpg

As you can see in the schematic, my HF1300's are 4 Ohm, and my HF2000 are 8 Ohm, I have asked Mr. Bloomfield from Falcon if these are correct.
The information I found on various forums is not really consistent, I found someone saying the first series of the RSPM Mk IV had 8 Ohm 1300's and 2000's but IMF shipped later Mk IV's with 4 ohm 1300's and 6 ohm 2000's without changing the filter.
I also found someone saying that not all Mk IV's sound the same, this could be a reason.

I'll report the answer from Falcon.

Next up are stands, I will be back!

regards, Peter
 
I also ordered standard Panasonic MKP's from Farnell to replace the Shizuki's, haven't seen them in other people's pictures

IMG_4145.jpg

regards, Peter
 
Hi :)
I live far up north in Norway
Im in the IMF club too :-D
Those great sounding IMF speakers.
Did recap my MK4 few weeks ago, and also recapped my TLS80mk2s earlier.

IMG_3636.jpg

IMG_4119_2.jpg

MK4 Filter before recap
23423826_10159550537150608_739292576_o.jpg

Filter after recap. Yes did chance the 60uf a week later.
23469042_10159550537305608_1852275989_o.jpg
 
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