looser101
500+ Head-Fier
- Joined
- Jan 11, 2005
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Quote:
C4 is the output coupling cap. 470uF is good enough for low impedance headphones but some people prefer 1000uF. Not sure why Digger's amp lacks bass with a (too huge) 4700uF cap.
First of all to use these boards balanced, a balanced source is required. Otherwise it's a headache I would pass on. My preference would be to use one board per channel. Say Right channel side for + (w/coupling cap) and Left channel for - (without cap, just a jumper). Do the same with the second board, which would then be the + / - for the other channel (Right channel?). This allows you to use two power supplies, one per channel, if you so desire. No negative supplies should be used. Some amps can use bipolar supplies to get rid of the output caps but I don't think this is a good candidate, as currently designed.
Originally Posted by rodentmacbeastie /img/forum/go_quote.gif To be certain, which output caps can I remove and which can be smaller? If you can tell me the C# from the schematic it would be very helpful. Again, I am new to this and want to be sure. Also, if I wired one board for the L/R- and B+ of -24V and the second board L/R+ and B+ of +24V, with seperate PS each would there be any possibilities here? |
C4 is the output coupling cap. 470uF is good enough for low impedance headphones but some people prefer 1000uF. Not sure why Digger's amp lacks bass with a (too huge) 4700uF cap.
First of all to use these boards balanced, a balanced source is required. Otherwise it's a headache I would pass on. My preference would be to use one board per channel. Say Right channel side for + (w/coupling cap) and Left channel for - (without cap, just a jumper). Do the same with the second board, which would then be the + / - for the other channel (Right channel?). This allows you to use two power supplies, one per channel, if you so desire. No negative supplies should be used. Some amps can use bipolar supplies to get rid of the output caps but I don't think this is a good candidate, as currently designed.