How are you finding the results after a bit?
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How are you finding the results after a bit?
Not yet finished them, just one side. Will post some pics soon. Need to make some accurate spacers. Its lot of work to accurately cut the plastic and install the magnets. New Neo magnets are super strong.
You're lucky you got the stock ones out without them flipping around :)
I had a screw fly out of the screwdriver the other day onto a rare dynamic monitor set and stick to the driver, went right through the baffle holes.
Thanks for the pics whenever , no rush.
I revisited a few SFI drivered mods lately to bring up the high end a bit so that the detail was there without sibilance.(~4 mods if I can recall)
Yeah normally there is no problem with that part---the highs, but my mods generally brought out the bigger potential of the low end on them.
I found that using a fuzzy felt material damper common in most of my mods( Arctic brand materials=A.Cotton or A.Bamboo), helped those high ends a bit to be tolerable. However they still needed some fleshing out.
What I did was another thing that seems to work well in various schemes and drivers. That is to apply a layer of 3M Micropore to the rear facing side of the fuzzy felt-type damping.
What this tends to do is filter and at the same time reflect some goodness back into the mix.
For all the SFI mods I used a rear application that reflected/filtered 4 of the outside holes and kept the middle and top 3 unencumbered.
Obviously the center hole is the bass zone.
Let that fly.
Not sure if this is of any use to anyone, does anyone do SFI driver mods these days??? Am I a Dinosaur?
Aside from the minor dynamic compression due to size these can have some seriously decent results. On the cheap. In the right application and housing.etc.
The blocking of the backwave on the rearsides on fuzzier felt-type damping layers works very well.
Sound immediately encountering the fuzz and adding some diffusion to the backwave, then hits the selectively filtering and reflecting single 3M Micropore layer scheme directly behind selective holes.
This seems to result in a common effect among all the mods I just tweaked.
I can relax now :)
Have fun! and heck yeah keep adding to this "origin "thread please.
Trust me there ARE unknown finds still to be had out there.
I realize this is probably my longest post in this thread....I have been lurking for a while. You might know me from the T50rp threads and the Grado modding threads. I am a recent convert to orthos/planars. I am currently really enjoying making Thunderpants style woodies in my workshop. I decided it would be worth starting to tentatively explore outside of the T50rp realm a little while ago...
So the results of my trade for a pair of my T50rp woodies came in the mail a couple of days ago. I have been trying them out a little, getting to know them...
The TDS 5M are immaculate, and its not a paint job. The plastic is genuinely Soviet red. Its awesome. The TDS 16 are the 16 ohm version and they are fairly rough. The Y split on the cable is black electrical tape, they have definitely seen some pretty heavy use. Regardless, both sound great. I really enjoy the stock sound on both (weird, not weird, who knows? Let your freak flag fly brothers, let it fly....).
I am fascinated by the fact that the pads on both seem to have been chosen with a mind to offend even the most hardy among us. Perhaps it was to steer the Comrades away from spending too much time listening to degenerate popular music, or listening to music in an insular, non-communal fashion? The ones on the TDS 16 are particularly hilarious. There is no filling, they are simply plastic sacks glued to the baffle.
Does anyone have recommendations for decent, similarly sized alternatives? The diameter needs to be 3 inches for the TDS 16, and slightly less for the TDS 5M. I will more than likely leave the TDS 5M stock since they are less painful, and in such great shape.
The TDS 16 will get an overhaul....new cable, clean-out, new pads...maybe the drivers will find themselves transplanted into some woodies...I would hate to spoil that fantastic retro design though (don't be surprised....remember, I come from Grado-land)...
Thanks for the pad pix. I look forward to seeing the inside of the TDS-16. You have the Kiev version.
I have TDS: 5M, 7, 15 (black and silver versions), 16 (Kiev and Smela versions), H25C, and H21C (portable ortho:)
Some of my mods with pix are listed in my profile including transplanted TDS-15 drivers into a Takstar donor (thanks, leeperry for the suggestion).
Tip: Look for a 3' x 3' sheet of double-sided adhesive and an X-Axto "compass cutter" at your local art supply store. This makes for much easier pad mounting with a perfect seal all the way around. If you cannot source it and want to try it, I'll send you some...PM me.
X_ACTO Compass Cutter
A few Russian orthos from the '80's and early '90's
Left to Right: TDS-5M, TDS-16 (Kiev), TDS-15, TDS-7,
TDS-15, TDS-15 transplanted into Takstar donor;
TDS-16 (Smela) not shown
Amfiton H25C retooled with stronger N45 neodymium magnets
and 70 mm currently manufactured diaphragms:
Amfiton H21C Portable Ortho: