Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › MOdded a Fiio with a CMOY and a 9V Battery.. Pics
New Posts  All Forums:Forum Nav:

MOdded a Fiio with a CMOY and a 9V Battery.. Pics

post #1 of 13
8/24/08 at 4:15pm
Thread Starter 
My FiiO did not like my 1.2V AAA rechargeable cells "Got all sorts of disturbance's"

So i used normal throw away 1.5V aaa cells which my GF did not like "Bad for the environment"

So what i did was to combine a 9v Cmoy amp with this FiiO which runs on 1.5V

To archive that i first ripped open the Fiio case and then i diverted the out of the Fiio amp to CMOY's Audio in and connected the Audio out to Fiios Out... As for the battery i took the 9V rechargeable and then used a 2way splitter and placed a 3V resister for the Fiio "Thats right 3V not 1.5v, it performs better at 3V's"

http://img233.imageshack.us/img233/7...2008001cc4.jpg

http://img124.imageshack.us/img124/3036/25082008aw4.jpg
Reply
post #2 of 13
8/24/08 at 4:45pm
That looks AWESOME!
Reply
post #3 of 13
8/24/08 at 8:11pm
Nice blurry pics of packaging tape
Reply
post #4 of 13
8/24/08 at 10:33pm
Quote:
Originally Posted by yeahx View Post
That looks AWESOME!
Yes, the packaging tape looks AWESOME!

If you already have a cmoy, than putting a E3 upfront is quite pointless, not to mention the double amping and all the hissing that comes from the E3.
Reply
post #5 of 13
8/30/08 at 10:27pm
Quote:
Originally Posted by ajai_dev View Post
"Thats right 3V not 1.5v, it performs better at 3V's"
When ran at 3volt, is the hiss reduced?
Reply
post #6 of 13
9/1/08 at 5:06pm
Quote:
Originally Posted by ajai_dev View Post
, it performs better at 3V's

Eh? How much juice can this little guy take? If it can take up to 5v, I'll just solder on power from a USB cable.
Reply
post #7 of 13
9/27/08 at 3:59pm
I ordered two fiios so what mod can I do on the second one ?
Changing caps? capacitors ? battery ?
Reply
post #8 of 13
9/27/08 at 4:18pm
Great idea, can we have some better quality photos please?
Reply
post #9 of 13
9/27/08 at 5:08pm
Quote:
Originally Posted by strend View Post
Eh? How much juice can this little guy take? If it can take up to 5v, I'll just solder on power from a USB cable.
1.4-3.6 V (max 4 V) if I interpreted the data sheet of LM4917 correctly.
Reply
post #10 of 13
9/27/08 at 6:13pm
Maybe you will have to mod the capacitors. it has to be Higher voltage than the battery.
Reply
post #11 of 13
9/28/08 at 3:08am
What i did was to change the Casing of FiiO amp..

Due to this the FiiO amp is more noise-proof.
Reply
post #12 of 13
10/9/08 at 1:56am
nice mod
any improvement?
Reply
post #13 of 13
10/11/08 at 9:30am
How do you guys open your FiiO. I tried several times but I'm scard of braking it.

Edit: Just opened it. Now I want to mod something but everything is so small.
What can I do ?
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Headphone Amps
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › MOdded a Fiio with a CMOY and a 9V Battery.. Pics