mccarty350
Super Member
Ordered a full roll and cut it down myself. Lots of extra in case a mistake occurs in cutting.
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IMF owners thread!
- Thread starter canuckaudiog
- Start date
Excellent and good to know. I'll put in an order after getting measurements. Probably have a few other speakers I could use it on too.
mccarty350
Super Member
The pricing is great and the full roll is ginormous. My only complaint is I am not thrilled with the color but otherwise its a win.
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c-atle-79bay
Super Member
Any thoughts about perreaux amps either an 1150b or an 1850. They have very high damping factors and generally seem to be beasts.
canuckaudiog
On a quest for high fidelity
I had one of their huge amps running my IMFs for a bit. Can't recall the model # but it was massive and put out 500 WPC. Perreaux PMF50xxb or something like that.
It sounded pretty good, although it seemed to lack some finesse and detail. Overall, it was a good match. If I were to try Perreaux again it would be one of their later designs as I heard they made some great improvements later on.
It sounded pretty good, although it seemed to lack some finesse and detail. Overall, it was a good match. If I were to try Perreaux again it would be one of their later designs as I heard they made some great improvements later on.
c-atle-79bay
Super Member
Thanks Canuck, ended up passing on it, and sold my separates. Just going to run my AVR for now, ultimately based on A/B results it runs these guys really well, tight bass, with a nice crisp punch to it. The 30 year newer amp just worked better.
Next project, sub in my hiquphon for either the HF or Super tweeter, not sure which one yet. The frequency range would likely be best for the HF KEF driver. One of the things about the hiquphon sense of air and space, which leads me to want to swap out the super tweeter, but it "only" goes to 20 Khz, but what I don't want to loose on the IMF is that rock solid imaging. Will report back results.
At some point I figured the vintage linn hiqophon,I have 2 sets, was similiar to the http://www.hiquphon.dk/page14.html#Technical data OW II (D2094-9008-03)
Next project, sub in my hiquphon for either the HF or Super tweeter, not sure which one yet. The frequency range would likely be best for the HF KEF driver. One of the things about the hiquphon sense of air and space, which leads me to want to swap out the super tweeter, but it "only" goes to 20 Khz, but what I don't want to loose on the IMF is that rock solid imaging. Will report back results.
At some point I figured the vintage linn hiqophon,I have 2 sets, was similiar to the http://www.hiquphon.dk/page14.html#Technical data OW II (D2094-9008-03)
canuckaudiog
On a quest for high fidelity
Good luck with your project, whichever way you go.
If it were me, I would replace both tweeters with a single tweeter. The only reason IMF employed two tweeters was because tweeters in those days couldn't cover that entire range in one unit (and is a major reason why tweeters are so much better these days). Take the Celestion 66 for example (which also uses the HF2000). The bigger IMF models use it above 13.5kHz, because it is really best suited as a super tweeter. Yet the 66 crosses it over at 5kHz!
Anyway, like I say if it were me I'd take both tweeters out and replace it with just a single and turn it into a 3-way. It would be a challenging project, as the baffle would require modification as would the crossover, but I imagine it would be worthwhile if executed correctly. Of course, the only issue here is the speaker is no longer original and there is no turning back.
mccarty350
Super Member
speaker_nut
New Member
Ottawa IMF fan .........
Read through this entire thread tonight ... Whew! A wealth of information. Just thought I would check in as an Ottawa IMF enthusiast.
I'm currently finalizing restoration of a pair of TLS50 Mk.1. I have also restored the SuperCompact II, ALS40, and RSPM IV models. Still have them all.
Read through this entire thread tonight ... Whew! A wealth of information. Just thought I would check in as an Ottawa IMF enthusiast.
I'm currently finalizing restoration of a pair of TLS50 Mk.1. I have also restored the SuperCompact II, ALS40, and RSPM IV models. Still have them all.
Nice before and after, well done!
Welcome to AK and the IMF thread, you'll definitely fit right in. Let us in on the stories behind getting 4 pairs of IMFs and of course pics of your beauties.
canuckaudiog
On a quest for high fidelity
Wow does that ever look great! Nice work!
A fellow Canadian IMF fan, welcome! I've had/have similar models. Nice to see the bit about restoration there - it's good that there are others out there taking the time to bring these great speakers back to their factory sound. If you ever have any questions you can feel free to shoot me a PM :thmbsp: Post some pics if you can and like mech986 said, a couple stories would be cool too!
mccarty350
Super Member
Thanks guys, I just want the caps to come in. I figured I wouldn't hold back on these, they get the full restoration treatment.
Speaker_Nut...craziness, you have not been on the thread but you've got a ton of IMF's! Very nice! Did you built your own cap list and implement or do you purchase from Falcon?
Speaker_Nut...craziness, you have not been on the thread but you've got a ton of IMF's! Very nice! Did you built your own cap list and implement or do you purchase from Falcon?
canuckaudiog
On a quest for high fidelity
I am particularly looking forward to hearing about your experience with these after they are restored electronically :yes:
By the way, just as a note on placement, give them space and distance if you can. The 4-way drivers don't gel together until they get some distance away. I've got mine roughly 10 feet away, but they have worked at closer distances like 7-8 feet. If I recall correctly, you've got just about the perfect sized area for them to work.
gamgee-fidel
Member
Which iteration do i have?
mccarty350
Super Member
I totally will provide feedback. I'm very eager to hear them as they should be.
Thank you for the placement info, that is VERY valuable. Let me ask this...how do they interact with walls? Better against a wall, corner, more into the middle of the room, etc.? Any ideas or observations? In my main room they would probably be placed more into the room...in my office more likely to be against the wall.
Thank you for the placement info, that is VERY valuable. Let me ask this...how do they interact with walls? Better against a wall, corner, more into the middle of the room, etc.? Any ideas or observations? In my main room they would probably be placed more into the room...in my office more likely to be against the wall.
mccarty350
Super Member
Looks like an RSPM IV or maybe TLS-80. Your photo doesn't show below the TL ports, can you provide a full photo of the entire front baffle sans grill and the info/sn on the binding posts?
canuckaudiog
On a quest for high fidelity
Those are TLS 80s.
Nice speakers! Thank you for sharing the pictures with us
John - they like to be away from walls. Corners amplify the bass and make them sound a bit boomy.
Nice speakers! Thank you for sharing the pictures with us
John - they like to be away from walls. Corners amplify the bass and make them sound a bit boomy.
mccarty350
Super Member
How did you tell without seeing if that plate was below the ports in the baffle photo? Just learning from one of the IMF masters, what clued you in that they were 80's or was it just size?
Good to know and I figured that was the case. With the TL I figured walls would muddy it up. I like having them away from the walls in my main room first off because they are inefficient and I don't want to fry them giving them enough juice to make it to my listening space and second off to keep them from getting muddy.
Good to know and I figured that was the case. With the TL I figured walls would muddy it up. I like having them away from the walls in my main room first off because they are inefficient and I don't want to fry them giving them enough juice to make it to my listening space and second off to keep them from getting muddy.
Those are TLS 80s.
Nice speakers! Thank you for sharing the pictures with us
John - they like to be away from walls. Corners amplify the bass and make them sound a bit boomy.
canuckaudiog
On a quest for high fidelity
A few things, the RSPMs have a metal plate along the bottom stating their model, the complement of drivers and also the veneered front baffle, and also the logo on the front grill. The TLS 80 II will typically say IMF electronics (although I have seen them say IMF international, but in a different style to what is on those grills). The logo on those TLS 80s is the old logo found on the original Super Compact, the IMF TLS 50, etc.
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