| 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 |
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| wuffwaff |
yes it will,:)
as long as the input impedance is large enough for your planned output impedance.
william |
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| kevyjo |
| The imput impedance of the NAD is 20k ohms |
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| 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. |
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| 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 |
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| lgreen |
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/show...?threadid=20968
Note my answer for other things to look out for. |
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| kevyjo |
| No, I'm sorry, I missed that one, thank you. |
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| 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 |
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| 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 |
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| stefanobilliani |
| quote: | Originally posted by kevyjo
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.
;) |
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| kevyjo |
| Sorry, I havent gotten that far yet, still working on understanding the shematics of BOSOZ |
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| stefanobilliani |
| quote: | Originally posted by kevyjo
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. |
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| 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! |
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