[LMJ243]

hey, guys, i m gonna DIY my 1st custom IEM. dynamic as the bass, BA as the mid $ high.
 
but i hv 2 problems 2b solved~ Can anybody help?
1. frequency division problem.  Maybe somebody can show me some training PDFs?
2. here's a picture on how i m gonna do the frequency division:

the 10 ohm resistance will be connected to the bass driver
i've 2 chip tantalum capacitance connected in series to get the mid&treble driver
 
the problem is: the inner resistance of my drivers are different. for the bass driver, it's 36 ohm, the other driver is 23 ohm
 
since i'll add a 10 ohm resistance to the bass driver, it'll be 46 ohm....
 
what'll happen if a 46 ohm and  a 23 ohm  resistance will be in parallel connection like this?
 
(the frequency devision set is from Shure E5C. will it work on my drivers? If not, what shall I do?
 
Thank you thank you and thank you......
 
 guys, my IEM is done! see it here: http://www.head-fi.org/t/616643/my-virgine-home-made-iem-quad-drivers-1-dynamic-driver-3-balanced-armature-come-with-frequency-seperation-circuit

 

[LMJ243]

sorry, i've used some wrong words.
 
it's not driver's resistance, it's impedance.  so it's a 10 ohm resistance linked with a 36 ohm impedance dynamic driver.
the parallel is 2 pcs of 2.2UF capacities linked with a 23 impedance of BA driver.
 
 
waiting for your reply, thankyou
 
 
 
well, it's finally finished....see it here: http://www.head-fi.org/t/616643/my-virgine-home-made-iem-quad-drivers-1-dynamic-driver-3-balanced-armature-come-with-frequency-seperation-circuit

 

[MuZo2]

Quote:

 
(the frequency devision set is from Shure E5C. will it work on my drivers? If not, what shall I do?
.
 
 

     Crossovers are designed based on drivers, tubes, accoustic filters, so same crossover will not work for your customs.
Without measuring(accoustic) equipment it would be quiet difficult , more with hybrid because dynamic drivers cover whole frequency range.
 
Quote:

hey, guys, i m gonna DIY my 1st custom IEM. dynamic as the bass, BA as the mid $ high.
 
but i hv 2 problems 2b solved~ Can anybody help?
1. frequency division problem.  Maybe somebody can show me some training PDFs?
 
 
 

There are none as far as i know for IEM, lot of them for speakers based on inductors

 

[LMJ243]

finally it's done!