| wuffer |
| i have just finished my aleph preamp and i would like to have a preout to a subwoofer... is there anyway to make that, so the sound dosent get worse??? my english is bad :( |
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| Klaus |
Hi,
I also did not want to load one unsymmetrical sub output onto the real symmetrical design of the P1.7.
I have chosen this way: one inverting OPA-buffer sums up the signal from both negative output (almost load free via 175kohms resistor) = not inverted signal. This mono signal is Linkwitz-filtered in two stages by 24dB/oct at 38Hz. This mono signal is given via one cable to my active dipole sub. It just took an extra PSU with +/- 17V and a small extra PCB...
One idea.
regards
Klaus |
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| wuffer |
| thanks.. can you make a schematic of it?? that would be nice :cool: |
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| Klaus |
| quote: | Originally posted by wuffer
thanks.. can you make a schematic of it?? that would be nice :cool: |
Sorry, I have no circuit file. I found the 24dB-filter on the Linkwitz page and the OP sum up circuit is somewhat standard. My scanner is defect, so I can not provide a circuit short term. |
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