http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=020-1834
These any good?
Also what OPamp should I use. I have a choice of 8+,0,8- or15+,0,15-
Thanks guys
Ben
These any good?
Also what OPamp should I use. I have a choice of 8+,0,8- or15+,0,15-
Thanks guys
Ben
ben62670 said:I need a little help designing an active XO. Using TJC filter designer it gives me cap values of .1uf, and resistor values of 795ohms. Does this seem like the optimal combination? What kind of caps should I use?
Thanks again guys.
Ben
795R is at least two orders of magnitude too low for a tube crossover. Try shooting for something in the 50k-200k range.
+-15Vdc allows a max output of around 10Vac (~=+22dBm)
+-8Vdc allows a max output of around 5Vac (~=+16dBm)
You will be operating with 6dB less headroom.
Many recommend that 20dB of headroom be allowed for, throughout the reproduction chain, to minimise the risk of clipping transient peaks and also to keep the output well below the higher distortion levels typical of single ended ClassA stages.
+-8Vdc allows a max output of around 5Vac (~=+16dBm)
You will be operating with 6dB less headroom.
Many recommend that 20dB of headroom be allowed for, throughout the reproduction chain, to minimise the risk of clipping transient peaks and also to keep the output well below the higher distortion levels typical of single ended ClassA stages.
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