[High_Q]

I have a CMOY made with the mint can case, but I want to get something that is smaller.  I think the CMOY could be smaller.  Can you guys recommend me something that is very tiny that amps IEMs really well that I can build?  Thanks.

 

[Avro_Arrow]

Talk to Fred_Fred

 

[earfanatic]

You can make a cmoy with smt parts.

 

[rds]

The major source of bulk isn't the circuit but the gigantic batteries used.  If you want small you need to use Lithium batteries.  
I think the community generally doesn't like these battery types because they can potentially explode when misused.
 
In my opinion the smallest you can manage without Lithium batteries is the mini 3.

 

[civilmonkey]

Check out Sijoae's builds.  He has made some tiny cmoys and transistor based amps.
 
http://www.headphoneamp.co.kr/ftp/sijosae/Gallery/