If you want to use TOSHIBA or LINEAR SYSTEMS JFETs for this active
crossover, then you will need a lot of them. Sounds expensive to me.
And first you have to know if Nelson Pass is using complementary N- and P-Channel JFETs or only the N-Channel JFETs. I f he uses the same or similar topology as in the LX-MINI- crossover, then you would only need N-Channel - JFETs.
For each bufferstage 1 N-Channel for the signal + 1 N-Channel as constant current source.
Something you will have to know and think about?
And the picture I saw from his pcb shows a lot of buffer stages.
Greets
Dirk
crossover, then you will need a lot of them. Sounds expensive to me.
And first you have to know if Nelson Pass is using complementary N- and P-Channel JFETs or only the N-Channel JFETs. I f he uses the same or similar topology as in the LX-MINI- crossover, then you would only need N-Channel - JFETs.
For each bufferstage 1 N-Channel for the signal + 1 N-Channel as constant current source.
Something you will have to know and think about?
And the picture I saw from his pcb shows a lot of buffer stages.
Greets
Dirk
Hi Dirk,
Thanxs for ur answer, its fine... if i have seen right in store they are available!?
Regards
Alex
Thanxs for ur answer, its fine... if i have seen right in store they are available!?
Regards
Alex
Oh, I have to check the store. Thanks!
I count 28 JFETs from the picture in post #62.
Greets
Dirk
I count 28 JFETs from the picture in post #62.
Greets
Dirk
R-K-Ronningstad is right. Me too can't see a B4 or similar crossover.
Only the LX-MINI-crossover.
Greets
Dirk
Only the LX-MINI-crossover.
Greets
Dirk
No problem Zen Mod!
I am completely lost in space..... 😀
The Master will offer this new crossover to us. It is only a question of time.
Greets
Dirk
I am completely lost in space..... 😀
The Master will offer this new crossover to us. It is only a question of time.
Greets
Dirk
to ACOUSTICER83
Nobody knows what kind of JFETs Nelson Pass will use?
I am pretty sure he will use the Fairchild J113 again. We will see 😱 and
we have to wait. Sorry!😉
Greets
Dirk
Nobody knows what kind of JFETs Nelson Pass will use?
I am pretty sure he will use the Fairchild J113 again. We will see 😱 and
we have to wait. Sorry!😉
Greets
Dirk
Stereo 6-24 db/oct biamp requires 24 N channel Jfets. The cheapest Jfets are the
J113's, and the most expensive are 2SK170. Even more expensive are
complementary 2SK170 / 2SJ74.
The J113's are pretty well suited to this if you are willing to match them and
provide Source resistors for the current source Fets.
J113's, and the most expensive are 2SK170. Even more expensive are
complementary 2SK170 / 2SJ74.
The J113's are pretty well suited to this if you are willing to match them and
provide Source resistors for the current source Fets.
to Nelson Pass
Thanks, Mr. Pass!
I hope a lot of the readers of this post will be 'happy'?
From now on a little patience is necessary. 🙄
Cheers
Dirk
Thanks, Mr. Pass!
I hope a lot of the readers of this post will be 'happy'?
From now on a little patience is necessary. 🙄
Cheers
Dirk
I am also hungry.
Because of this I have a breakfast with my NUTUBE - preamp and the M2X.
Waiting for the B4 crossover as a dessert.
Greets
Dirk 😀
Because of this I have a breakfast with my NUTUBE - preamp and the M2X.
Waiting for the B4 crossover as a dessert.
Greets
Dirk 😀
to Nelson Pass
Fantastic news!
Thanks Mr. Pass. Some boys (perhaps some girls) need new toys?
Papa is delivering new toys to the kindergarten...😀
Cheers
Dirk
Fantastic news!
Thanks Mr. Pass. Some boys (perhaps some girls) need new toys?
Papa is delivering new toys to the kindergarten...😀
Cheers
Dirk