SOZ, BoSoz Parts

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..Yes i know, thousands (or less) have asked this Question, but mine ist different:

Many Diy`ers build-in Bypass Capacitors in Powersupply- and Signal Kapacitors.

But -has anyone tried to build-in super -expensive Capacitors in Signal path, like Jensen or others -only?, that means no Bypass only pure hi-tech Capacitors!?


Capacitors are like wine, each one have their own special taste. It all depends how much money you want to spend, what is your taste and how revealing is your system. I did some comparisons in my speakers crossovers and I must admit that changing caps could be compared to actually changing the drivers. My favourite were MITs RTX and Hovlands. I actually couldn't decide which one sounded better so I mixed 1uF MIT with 4uF Hovland for example to get the best of both worlds. Now, even adding 0.01 of additional capacitance of both types gives another "special flavours". My advice is to try as many different caps in your system as you can and then decide what you like. I tried some polystyrene Jensen caps I prefered them to MITs and Hovlands some locations. If you want to go cheaper WIMA MKP is a good try.
Thanks HPotter

i see that the question for the best capacitors is too heavy.

In front of my tweeter i use tin Foil, bypassed with glimmer.

I did not yet try other C`s in the midrange. is it advisable?

all my power supply rails are bypassed with Siemens kp1832.

in the signal path of the SOZ and BOSOZ i use selected called "Kohlemasse widerstände" in Germany. they should be much better than Holcos etc. but i didn`t compare them.

Can i buy Hovlands, MITs, RTX in Germany?

My general Question is: Is the sound better when i use one Capacitor or several C`s in parallel?
Some people say, when you use only one , the sound is homogenious.


Soz, BoSoZ Parts


You have a good question about mixing capacitors and there are some good references on this topic, 1 by Marsh and Jung (sorry I don't have the address and which has an article on biasing capacitors for crossovers.

For supply decoupling I have found the Elna cerfine very good, but it depends on the application, small values are often used for stability and to reduce impedance at high frequencies.

The idea is to use two capacitors in series of twice the value and bias them at the centre point with 9 volts from a battery via 2 megohms resistance.

According to JBL who refer to this are charge coupling, the effect is similar to Class A on sound.

In the signal path this is where the romance of audio tweeking starts and ends and there are no rules.

But some references suggest bypassing with small value of 1/100 the main capacitors, while some hi fi types say parrelling capacitors can cause strange effects like echoes.

Recently I upgraded from basic polypropylene to Hovlands in my tweeker crossovers. They cost a fortune, and at first the effect was subtle and I felt they were warm and lush.

But as time passes I have found these to be very transparent and liquid, without the brightness or harshness of some other film and foil types.

Best regards

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