[ANN] Bass-Rework = Headset Audio Quality Enhancement available in EU

Benedikt beniwtv at relamp.tk
Sat Mar 13 12:50:37 CET 2010

On Sat, 2010-03-13 at 12:35 +0100, Dr. H. Nikolaus Schaller wrote:
> Dear Freerunner owners in the EU harmonized market,
> a known problem of the Neo Freerunner design is that the headset  
> output lacks some low frequency signals (bass). Thererfore music  
> played through the headsets does not sound as expected and compared to  
> other digital music players.
> There is an improvement rework by adding larger coupling capacitors to  
> the output amplifier. This became known as the Bass Rework (http://wiki.openmoko.org/wiki/GTA02_bass_fix 
> ). Although there is a description of a rework solution (http://people.openmoko.org/andy/additional-headset-audio-caps.pdf 
> ) we do not expect that you can do it yourself and not in the required  
> quality. Just a note what the problem is: we need 47 uF in 0805  
> dimensions and they are a little expensive and difficult to get and  
> space is very close. Therefore, we have worked on a professional  
> approach.
> With the help of a local SMD specialist company in Munich, we can now  
> offer a rework service to those who want to improve audio quality. The  
> price is 49 EUR (incl. German VAT) plus shipment.
> [snip]

Wow! Last night I was hoping the bass-fix would be made available as
this is the last problem I have. Thank you!


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