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RE:Naim addiction

Thanks a lot Satie,
I'll have a look myself at customs crossover alginement for the Behringer and see what I can find. It seems you can't do a Butterworth/Bessel Hybrid and the only 3rd order filter is straight Butterworth, but various options for 1st, 2nd and 4th order.
If I can't find anything I might get back to you if thats OK and you have time to have a look.
I am picking up the 3.3Rs tomorrow, -so look forward to that. In the meantime I am setting up the Behringer for the 3.3R so I am ready to hook up. I've tried listening to the Behrginer plugged into my headphone setup and tried it in and out of the circuit (with all the filters on the Behrginer bypassed). I can for sure hear the degradation in sound it has in the mid/treble, - its doesn't keep the refinement and smoothness of the source giving a harder/slightly coarser sound with it switched in. It is not terrible by any means but I can hear it (using several pair of good headphones). So I think I really want to try your part active/part passive line level crossover approach until I get the Behrginer upgraded. I will have to look at getting started trying to figure out how to calculate some values to try. I know I could try to use the behrginer (when I work out how to program custom crossovers in) to make an optimised passive version for the high pass suited for my room but I suppose in the meantime the straight stock alignement for the high pass 2nd order crossover would be a good place to start. Is there any chance you could help me calculate the values for those two caps and resistors for the line level version of the stock 2nd order HP crossover if you have a minute at all?! Don't worry though if you are too busy. I'll put up with the Behrginer in the meantime.
When trying the PLLXO to start off I won't buy super expensive caps and resistors when trying the first values in case they need to be changed. Do you know roughly what wattage resistors to get? I would guess 1/2 watts to 2 watt? And is it better getting carbon or metal film?

And as for the caps. I guess polypropylene are the ones to get?, - And do you know what voltage rating should the caps be?
Any help (if you have time) would be really appreciated!
All the best,
Colin

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