BZLS p2p implemented with wire from link below:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=4395&pagenumber=2
wire:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=8476
Is is really easy to work with. The easiest way to do it (my first BZLS, and the way I do most amps) is to use a Veroboard or similar, amd connect the components directly to each other. Some places it is useful to have a little of the tinned Cu wire linked above. Here you can see the method implemented in my Aleph 30:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=6966
You don't really need this kind of wire though, you can just use some normal wire.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=4395&pagenumber=2
wire:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=8476
Is is really easy to work with. The easiest way to do it (my first BZLS, and the way I do most amps) is to use a Veroboard or similar, amd connect the components directly to each other. Some places it is useful to have a little of the tinned Cu wire linked above. Here you can see the method implemented in my Aleph 30:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=6966
You don't really need this kind of wire though, you can just use some normal wire.
martinschki said:
That's correct. You ground the unused "-" input.
I strongly suggest that you read the http://www.passdiy.com/pdf/balzenpre.pdf
very carefully a few times. It's a lot of info, and it takes some read-throughs to get it all. Aslo do some searches on the forum with words like "zen linestage", BZLS, balzenpre etc. Most of the issues have been covered before....
Keep in mind that with a single input if you want exactly
the same output level on both polarities with BOSOZ,
then you want to current source the transistors from
the negative voltage rail with a real current source,
not just resistors.
On the other hand, the Aleph 5 doesn't care at all, so it
is adequate to simply ground the (-) input.
This only gets imprtant when you are using BOSOZ balanced
output to bridge a pair of amplifiers.
the same output level on both polarities with BOSOZ,
then you want to current source the transistors from
the negative voltage rail with a real current source,
not just resistors.
On the other hand, the Aleph 5 doesn't care at all, so it
is adequate to simply ground the (-) input.
This only gets imprtant when you are using BOSOZ balanced
output to bridge a pair of amplifiers.
BOSOZ is a diff amp having the transistor sources connected between two channels. Therefore, the unbalanced input might affect CMRR and the symmetry of output swings. Meanwhile, Aleph 2 is stereo amp of two mono blocks. The balanced input makes the higher input impedance while the unbalanced input the lower input impedance. This is all I know on surface. Anything else...? I dunno.
JH
JH
Please re-read the above as follows:BOSOZ is a diff amp having the transistor (gain device) sources connected between two sides. Therefore, the unbalanced input might affect CMRR and the symmetry of output swings. Meanwhile, Aleph 2 is stereo amp of two mono blocks. The balanced input makes the higher input impedance while the unbalanced input the lower input impedance. This is all I know on surface. Anything else...? I dunno.
JH
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