IMF owners thread!
- Thread starter canuckaudiog
- Start date
IMF_Pioneer
Super Member
Honestly I fathom to comprehend the above story. In no way would I be leaving any unattended box full of drivers laying around. All my spare drivers are either under out bed while all the tweeters are in our walk-in robe.
All I can say is.......................UNBELIEVABLE !
All I can say is.......................UNBELIEVABLE !
petervv
Active Member
To my ears, the crossover with the B110 was not correct, resulting in a peaky high-midrange / low-treble, after finding 8 ohm 1300's the RSPM's sounded like I remembered from 1978, remarkably neutral for a speaker from the 70's
You could look for HF1300 Mk 2's, I think all of these are 8 ohm, they were sold to the DIY market in the early 80's and come up every now and then on ebay or other online platforms. I found a NOS pair some time again, I keep them as spares, the 1300's are rather fragile.
good luck with your search, kind regards, Peter
Yvan_donald
Well-Known Member
Hi, I have many HF 1300 , 4 ohm, 15 ohm version two, for the 8 ohm I have to verify, I will look this weekend.
Yvan_donald
Well-Known Member
Hi, the 2 Hf1300 on ebay are 15-16 ohm not exactly the right one? Normally the 4 ohm version have black plastics cup in the back, compare to the other version who has the same metal dome like the HF 2000 , same like the picture on ebay.
Thank you, I caught that at the last minute before buying them. Still searching desperately for a pair so I can use my speakers. Thanks to everyone, thus far, for their information.
I may not have adequately explained the situation, as I was highly emotional when I wrote that after discovering the situation. The drivers we placed in that box were all of no use, would never have been used for spares, and would have been thrown out anyway. What neither of us understand is how the HF1300's ended up there, as we had them in a smaller separate box, out of the way. My friends wife swears that she never saw any other box, or added anything to the one she threw out. But she could simply be saying that to avoid further embarrassment.
To my ears, the crossover with the B110 was not correct, resulting in a peaky high-midrange / low-treble, after finding 8 ohm 1300's the RSPM's sounded like I remembered from 1978, remarkably neutral for a speaker from the 70's
You could look for HF1300 Mk 2's, I think all of these are 8 ohm, they were sold to the DIY market in the early 80's and come up every now and then on ebay or other online platforms. I found a NOS pair some time again, I keep them as spares, the 1300's are rather fragile.
good luck with your search, kind regards, Peter
View attachment 2225488 View attachment 2225490 View attachment 2225491
Thank you for the information Peter. It seems like I should be looking for the 8 ohm model then.
Yvan_donald
Well-Known Member
Hi, I probably have 2 for you,but let me verify tomorrow, I have 2 pairs from Ditton 25 first generation maybe they are 8 ohm.Yvan.
Thank you Yvan. I would immensely appreciate any assistance. And congratulations on living in my favorite city in North America. It's been far too long since I've been there.
Yvan_donald
Well-Known Member
Hi Slofut , that's the picture of HF 2000 with is perforated dome protector.
Yvan_donald
Well-Known Member
Hi Slapshot, all of my Ditton 25 tweeters HF 1300 are 15 ohm, I have one from BBC ls5/1a and it is a 15 ohm. , seems the 8 ohm are not used very often?best regards, Yvan.
Thank you very much for trying to help me out Yvan. I truly appreciate it. Not really sure what to do now. After so much hope in finally owning these speakers, and now, two thousand dollars invested in speakers and the new drivers and caps, they may be completely worthless now.
Yvan_donald
Well-Known Member
Hi Slapshot, I can sell you 2 hf 1300 15ohm both for $50 so you can order the 8 ohm coil from ebay,that should fix your problem. Best regards
ALS-40 V1 woofers, Help!
Hi All,
I don’t feel quite as bad after reading about the tweeter story,but I bought a pair of 40s a few hours from me and had my son, who is local to the seller, pick them up in anticipation of me visiting last week. In my excitement, I did not notice that the woofers were not original, but average substitutes.
The V1 had the doped IMF woofers, the ALS-40II the Bextrene KEFs. Barring the miracle of the version 1 woofers becoming available, is it possible to substitute ALS-40II woofers? Even then, I’m not sure which 8 inch Bextrene I should use, the 1014, etc. my thinking is to use the one with a slightly artery magnet and a bit more excursion.
I have a pair of Super Compact I with IMF 8/22 branded Bextrene, and I could try subbing those in for one pair just to see how they do. I already have the midrange foam, and the caps from falcon. Even with the inferior woofers, I can sense that these could be VERY special.
Any insight or help would be much appreciated!
Hi All,
I don’t feel quite as bad after reading about the tweeter story,but I bought a pair of 40s a few hours from me and had my son, who is local to the seller, pick them up in anticipation of me visiting last week. In my excitement, I did not notice that the woofers were not original, but average substitutes.
The V1 had the doped IMF woofers, the ALS-40II the Bextrene KEFs. Barring the miracle of the version 1 woofers becoming available, is it possible to substitute ALS-40II woofers? Even then, I’m not sure which 8 inch Bextrene I should use, the 1014, etc. my thinking is to use the one with a slightly artery magnet and a bit more excursion.
I have a pair of Super Compact I with IMF 8/22 branded Bextrene, and I could try subbing those in for one pair just to see how they do. I already have the midrange foam, and the caps from falcon. Even with the inferior woofers, I can sense that these could be VERY special.
Any insight or help would be much appreciated!
Hello Yvan. I will certainly take you up on your kind offer. However, I have taken a quick look at Ebay, and only see one individual HF 1300 8ohm coil being offered, and from France. Am I missing anything? I just need to make sure that I will actually be able to locate two of these for sale. Thanks.
Yvan_donald
Well-Known Member
Hi Slapshot, the seller on ebay ninomusic sell these, you can order two at the same time.He sell two type of coil ,one is just the coil (arround 18$)so you have to remove the old coil from the original cone and install this new coil, you probably have to made a template to center the new coil. The other seems like complete with the coil but different cone material and have a dome shape, I don't no if the sound will be altered compare to original price arround 35-40$.Myself I will take just the coil to keep the same voicing.Yvan.
Yvan_donald
Well-Known Member
Hi Rmac 587, I have two sets als40 V1, one complete with peerless woofer paper cone with the second peerless woofer doped and on Ebay just the electronics an extra set with a new woofer sell at the time by john wright who have said is the perfect replacement with the same peerless doped as bottom one, this bottom one is very hard to find, but I can sell one set.Where are you from?Best regards,Yvan.
Yvan_donald
Well-Known Member
Hi Rmac.., the second one, found on Ebay like couple years ago.
Thank you Yvan, I agree with you that just getting the coil is the much safer choice as I do not want to risk altering the sound. I will get in contact with ninomusic.
I've just sent you a private message here to discuss payment, etc. And thank you VERY much, once again.