• 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!

As far as different markets are concerned I was informed of this by someone who's very close to it all and I'm sure he knows correctly, so I'm happy to run with that
 
Hi, it's like let say Wilson audio speaker's have different sound around the world.But Mr.Wilson went to Vienna at the Musikverein Hall to listen Vienna orchestra many time in this to achieve almost perfection in reproducing the orchestra.Many musiciens and directors of the hall own his speakers, to me companies who adjust the sound for differents countries are not serious Speakers manufactures, don't thing IMF will have done that.When you do Reference Standard qualities speakers, and for the review of new product imagine depending of your country,the speaker do not sound equal? Best regards,Yvan.
 
Hi Yvan,

I'm only going by what the boss of IMF has suggested to me some years ago now and as such I'll stick with that and thus why the RSPM Mk IV's had variations in their crossovers and Jerry puts various valued caps within the kit so you can pick out the exact units which were fitted in the particular set that you have.

It's that simple and no technical excuses required.
 
Hi, it is logical John Wright improved and change some cap value improving their's speakers along the way. The mk7 came late and should be superior compare to the mk4 like it is writen in the IMF record, better mids isolation and ferrofluid tweeter's and supertweeter's.Less distortion %.
 
Answer from jerry:

There are many variations of what is fitted to the later IMF models.

The answer is that they changed things all the time, I suspect to keep production going rather than technical reasons with the drive units.

My approach is to recommend you fit what is already there. At least you know it works.

Best wishes Jerry
 
Maybe i should put back the 6.8uf in tweeter section to try. I did put 2.2uf as my friend Jarl Wold here had in his MK7 crossovers.

Can some expert on crossover here tell me the theory what the difference is on C6 if the value is 6.8 vs. 2.2?
 

Attachments

  • SACMXover82 (1).jpg
    SACMXover82 (1).jpg
    73.3 KB · Views: 17
Must admit that Jerry's response seems to lead to "whatever we've got we'll shove in there to get them out the door" which is somewhat different to what I was told a few years ago.

Anyway ............................. it's not really worth an argument is it ?
 
I have no idea, the more we compare our speakers, the more questions show up

But anyway, i can confirm that they sound outstanding as they are, and the same does Jarl Wold's MK7s. I have a feeling that we will never get a good answer why they have different values in the late IMFs.

Is there anybody from the IMF company that we can ask, that worked with the crossovers?
 
Tor-S said:
Maybe i should put back the 6.8uf in tweeter section to try. I did put 2.2uf as my friend Jarl Wold here had in his MK7 crossovers.

Can some expert on crossover here tell me the theory what the difference is on C6 if the value is 6.8 vs. 2.2?
Click to expand...


I found this thread over at DIY forum

https://www.diyaudio.com/forums/multi-way/289805-raising-values-crossover-bypass-caps.html

There is a free cross over sim here

https://www.diyaudio.com/forums/software-tools/259865-xsim-free-crossover-designer.html


Maybe this will help you?

Athanasios
 
They are the real early SC's with the early IMF Badge whereas my Series 1 SC's have the later IMF International badges fitted.

Must admit the appearance of the Mk II's look superior to the black baffled Series 1's and also I would've loved to seen the Aluminum trim being used opposed to the timber beveled look which looks quite dated while the Ally trim just looks far more classy.
 
I’d like to hear a later generation, I’ve only ever had earlier these and “the studio” both have a similar sound and appearance. The compacts still give my buchardt s400 a good run for their money considering the age difference and all. Oh I did have compact monitors 3 for awhile sounded great but looked horrible so I never really had them out, I sold them with the tdl reference standards.
 
You had a pair of TDL Reference and sold them ? ...........why ????

They are the absolute Holy Grail of TL's

BTW what exactly was it that you disliked about the CM3 or was it the CM3a variant ?, in other words the sealed or vented versions of this speaker system.
 
Last edited:
Lol, WAF! The CM3 was vented and such a nice speaker, but I had my eyes on Chapman T7’s, which did not ultimately meet my expectations.

the TDL reference standards were indeed incredible and to date provided one of the most accurate bass I’ve experienced and will forever color how I listen to and for bass.
 
All - I just purchased a pair of TLS80s yesterday and have been listening to them all day and they sound AWESOME!! I had a pair of Quad 22L2 floorstanders, which aren't bad speakers but the 80s are so much better. Oh and HOLY BASS!! The only real issue with the speakers other than needing to be cleaned and missing a grill badge, is that the binding posts on one speaker needs to be replaced and will have to explore finding stands. Any suggestions for the posts? Thanks in advanced.
 
Another person that's seen the light ! LOL !!!!

Yes the 80's are a very good speaker system if you have the space for them. I've had a few sets of them over the years and still retain one set which reside next to my Mk IV's. At times there is music that is better suited to the 80's than the RSPM's and as such I'll just flick over to them. Rock music is generally better on the 80's as they are a tad more forgiving than the Mk IV's. The Mk IV's are just far more critical I find.

As far as stands are concerned, the only way you will get some is to have them fabricated up by some metal working shop or someone that knows how to weld.

I have a drawing of them with all the relevant dimensions that I'll post up shortly as it's on my other PC.

BTW are yours Mk I or Mk II's ?

Maybe you could put up some nice photos as we all love photos of IMF's regardless of what model speaker it is.
 
Last edited:
TLS80 MkII Stands.jpg

Sadly this is all I have on file. Dimensions are in inches and not metric and the quality is rather poor.

The above drawing was never mine, but was forwarded to me by another IMF owner and as such I must credit him.
 
I made a pair of stands for my Pro Monitor IIIs along similar lines. I put nylon rollers in the lower box sections to make the speakers easier to pull out. I've done the same with my TLS80s. The rollers sit in the box section with around five mm protruding so you can't see them in normal use.
 
You must log in or register to reply here.
Back
Top Bottom