[kmmm]

So did you do the 38 as sub with the 28 pulling mid duties? Did you have to add another tweeter?...not sure about the 28's extension....

28 is really nice. I have had some difficulty with the second peek around 4k. You definitely need a tweeter.

 

[neyurt]

Look interesting. Thanks for sharing this.

 

[Wgibson]

Anyone used the 38D2XJ yet? Even steeper than 38D1XJ. That with sonion ESTs, what would you do for mid/full?

 

[talyak]

Anyone used the 38D2XJ yet? Even steeper than 38D1XJ. That with sonion ESTs, what would you do for mid/full?

interesting. do you have a source for them?
i was thinking of giving the 38d1xj a go with the knowles fed-30048 for mids/highs. but i may not even need a crossover if the 2xj is that steep.
i feel like the sonion ESTs will be the weak spot with those tho. by all accounts its really hard to tune them to properly fill out the highs without being whispy. plus you lose the all-ba coherency advantage that you get with ba mids and bass.

 

[Wgibson]

Post #13607 from January has a taobao store number where I got the 38d2xj, not sure if they still have them

Edit: I used 26859 fed in a 10mm planar tribrid, 13mm dd, no filters, it is very realistic sounding, compared to single 10mm planar (same driver.)

 

[mattmatt]

Anyone here using ear impressions scanners?

 

[BadgerMcBadger]

which dremel bits do you folks use for ciem making?

 

[slakoth453]

which dremel bits do you folks use for ciem making?

I use these for grinding the faceplate flush, for ciems smaller round bits are also useful and of course normal drill bits.

 

[BadgerMcBadger]

I use these for grinding the faceplate flush, for ciems smaller round bits are also useful and of course normal drill bits.

what do you mean by

grinding the faceplate flush

 

[musmecca]

which dremel bits do you folks use for ciem making?

I use a couple of bits...sharp point for cutting edges or starting pilot hole for tubes then the larger carbide bid for rounding edges and boring out the final holes for the tubes. I also use 120 and 220 sanding wheels...these are very important as you can smooth out first with the 120 then go finer with the 220. Ill use my bench sander at times if i'm working with a thick faceplate. I attach my faceplates before cutting as it allows me more control of postion....I can center the best parts where i want them and cut away the rest. I ALWAYS 220 the shell prior to dipping as it helps the finish. Yes, I laq3 the INSIDE of my shell as well as it helps get a fantastic finish. I put a few pics below.....note the dipping of the shell...it's tubes are long and capped and the connector socket is sealed with aluminum tape....quick spin in laq 3 for less than a second, tap to remove drips, spin for 5 minutes then UV. Note the prepped shells are dull looking....don't worry about it as they will pop when lacquered. I threw a pic of a gold shell that shows how I center my wood....final result on right.

 

[slakoth453]

what do you mean by

What @musmecca shows in his pictures.

 

[talyak]

I use a couple of bits...sharp point for cutting edges or starting pilot hole for tubes then the larger carbide bid for rounding edges and boring out the final holes for the tubes. I also use 120 and 220 sanding wheels...these are very important as you can smooth out first with the 120 then go finer with the 220. Ill use my bench sander at times if i'm working with a thick faceplate. I attach my faceplates before cutting as it allows me more control of postion....I can center the best parts where i want them and cut away the rest. I ALWAYS 220 the shell prior to dipping as it helps the finish. Yes, I laq3 the INSIDE of my shell as well as it helps get a fantastic finish. I put a few pics below.....note the dipping of the shell...it's tubes are long and capped and the connector socket is sealed with aluminum tape....quick spin in laq 3 for less than a second, tap to remove drips, spin for 5 minutes then UV. Note the prepped shells are dull looking....don't worry about it as they will pop when lacquered. I threw a pic of a gold shell that shows how I center my wood....final result on right.

these are such pretty designs! i especially like the purple/blue one. looks amazing!!

 

[talyak]

does anyone have a source for 100g bottles of skin-safe resin? or lack 3? soundlink on aliexpress has neither rn, and i really dont need 250g of the stuff

 

[musmecca]

does anyone have a source for 100g bottles of skin-safe resin? or lack 3? soundlink on aliexpress has neither rn, and i really dont need 250g of the stuff

They are in the USA but easy to deal with....:

https://lightning-enterprises.com/Item/fotoplast_UV_hearing-aid-lacquer

 

[talyak]

just ordered a pair of fed-30048s. gonna make an er4xr/sr style deep insertion design with my 3d printer. i figure as long as the shell isnt making tons of contact with my inner ear, i shouldnt have any issue using pla. plus i cant get any impressions made in the next month, so a universal design will work best. lets hope there isnt any channel imbalance cos i cant really test them with the mics i have. its my new years present to myself lol