powline99
New Head-Fier
- Joined
- Jan 4, 2014
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As OP of the http://www.head-fi.org/t/604851/chart-balanced-armature-based-in-ear-monitors-technical-characteristics thread, I want to warn that the chart doesn't make it open season for anyone to poke around their IEMs and make changes on a whim. It takes a lot of reading and experience to know what goes on with crossovers and tubing resonances. I've read a lot, but because I have zero experience making CIEMs myself, I can't even say definitively whether something will sound one way or another.
Opening up a custom shell and changing stuff is actually pretty labor intensive, and is almost equal to doing a whole new CIEM. That's why it costs so much.
If you like the W4, get a W4.
From what you have, I can suggest the following for a prototypical stage monitor response, but there will be no guarantees that it'll sound good to you:
High Driver (Sonion 2323, 2389, 2354, assuming you have one of these): 1 uF capacitor in series, 1500 ohm damper (green), 12mm x 2mm ID tubing
Low Driver (Sonion 33A007): parallel hookup (for the two drivers), 10 ohm resistor in series, 4700 ohm damper (yellow), 12mm x 2mm ID tubing
Hi @tomscy2000 Thanks so much for your reply. I have invested so much into the CIEMS I don't want to loose that and would rather just make it right. With the configuration you gave (prototypical stage monitor response) what armature(a) and their configuration like below would you would you add to my CIEM make the sound more full. I noticed Inearz makes a Unit like the Westone 4R with 4 armatures (see below) and I would like to replicate that with my existing Sonion 33A007 drivers. I don't see the Inearz CIEMs on your chart?? Again many thanks at least your giving me something to tell the guy who made them and I am learning something as well.
Input sensitivity 119dB@1mw, Integrated 3 way crossover, Quad Balanced armature drivers, 2 low 1 mid and 1 high, Impedance 20 Ohm, Noise Isolation -26dB, Input connecter 1/8″ 3.5mm Gold plated, Dual bore, Frequency response 20Hz to 17KHz
Would it be...
*Adding a (mid driver) - CI22955;r (mid driver) - DTEC-30265-000; TWFK (FK)
High Driver (Sonion 2323, 2389, 2354, assuming you have one of these): 1 uF capacitor in series, 1500 ohm damper (green), 12mm x 2mm ID tubing
Mid Driver __________________________________________________________________in series, 4700 ohm damper (yellow), 12mm x 2mm ID tubing
Low Driver (Sonion 33A007): parallel hookup (for the two drivers), 10 ohm resistor in series, 4700 ohm damper (yellow), 12mm x 2mm ID tubing
or
*Adding a (low driver) - 33A007 (modified by UM to vented + custom damping); Sonion 38AM; CI22955
High Driver (Sonion 2323, 2389, 2354, assuming you have one of these): 1 uF capacitor in series, 1500 ohm damper (green), 12mm x 2mm ID tubing
Mid Driver (Sonion 33A007): parallel hookup (for the two drivers), 10 ohm resistor in series, 4700 ohm damper (yellow), 12mm x 2mm ID tubing
Low Driver __________________________________________________________________in series, 4700 ohm damper (yellow), 12mm x 2mm ID tubing