[sdiy] TR-909 undersized DC blocking caps

[Stewart Pye]

No, they're not in parallel. The other end of the 1k resistors go to
individual op amp outputs. I stand by my previous statement.
You may hear some improvement on the bass drum by increasing the
capacitor, but if it was a high pass at 122Hz as you state the bass drum
would be pretty much unusable from the mix output.


Regards,
Stewart.


Richie Burnett wrote:
> Stewart Pye wrote:
>
>> Actually most channels (including the kick drum) have 1k in series 
>> with 12k which makes it 13k. This should result in a -3dB point of 
>> 12.2Hz.
>
> There's effectively ten of those 13k 'ish resistors is parallel though 
> to mix the 10 seperate instrument outputs together.  That is 1.3k 
> combined with 1uF to give 122 Hz.  The high-pass (or "bass cut") 
> effect is still very noticeable.
>
> -Richie,
>