Bosoz with other amps

[kevyjo]

This may be a silly question, but thought I would ask. I've looked through the old threads and couldn't really find an answer. Will the BOSOZ work with pretty much any power amp? When I build it I will be using an NAD c370, which the power section is the same as the 270 power amp. Eventually I plan on building amps, but just wanted to make sure it would work in the mean time

 

[wuffwaff]

yes it will,

as long as the input impedance is large enough for your planned output impedance.


william

 

[kevyjo]

The imput impedance of the NAD is 20k ohms

 

[Nelson Pass]

One more time:

Both Boz and Sboz are current source outputs, and are
resistively shunted to ground. As a practical matter, for
any given input voltage, they will drive even a short with
the same amount (actually a little less) of distortion.

 

[kevyjo]

Honestly, I'm really learning this ee, slowly. Here is another one im sure has been discussed, but I can't seem to find threads on; what are the implications of adding multiple outputs on the bosoz? I could use two, or even three sets of outputs, and want to afford the possiblity of an active crossover in the future

 

[lgreen]

Multiple Outputs are OK

Hi, multiple outputs are fine, I just wired mine up this morning, two balanced and two SE outputs on my BOSOZ; everything in parallel. I don't plan on using them all at the same time, but its nice to have options.

You searched? Did you see the discussion here:

http://www.diyaudio.com/forums/showthread.php?threadid=20968

Note my answer for other things to look out for.

 

[kevyjo]

No, I'm sorry, I missed that one, thank you.

 

[wuffwaff]

Kevyjo,

just make shure that your output caps are big enough. The lower the input impedance of your power amp the higher the -3dB point from the high pass will be.

william

 

[kevyjo]

As far as I understand it, the input impedance of the SOZ is only about 5k ohms, if the output capacitance is designed to handle that, Id think it'd do fine with 20k ohms

 

[stefanobilliani]

As far as I understand it, the input impedance of the SOZ is only about 5k ohms,

No , the Son of Zen has the imput impedance YOU will care to use, even higher than 5K. Just choose the resistors you like.

 

[kevyjo]

Sorry, I havent gotten that far yet, still working on understanding the shematics of BOSOZ

 

[stefanobilliani]

Sorry, I havent gotten that far yet, still working on understanding the shematics of BOSOZ

Both SOZ and BOSOZ are differential pairs , nothing more, and they work both in the same way so the consideration on input impedance is good for BOSOZ too.

 

[kevyjo]

I have yet to order the parts to build my bosoz, so I am open to suggestions; However, I've decided to stick with the specified parts and only change them if I have a reason to; I've decided to go way overboard on the torioid because it has been discussed that oversized toroids seem to have a positive effect on the sound and, it's CHEAPER to do it that way, I figure I might as well!