touche´ 
but if you use connectors for the simple SE to balanced convertion there will be a signal ground connected, no ?
he stricly said he would not consider trafos due to budget
that said ...
RCA connectors are always isolated from chassis, and for a good reason, right ?
and besides, XLR also happens to have a 4th 'pin' for chassis connection, and also for a good reason, right ?

There is no "signal ground" in a balanced system.
but if you use connectors for the simple SE to balanced convertion there will be a signal ground connected, no ?
he stricly said he would not consider trafos due to budget
that said ...
RCA connectors are always isolated from chassis, and for a good reason, right ?
and besides, XLR also happens to have a 4th 'pin' for chassis connection, and also for a good reason, right ?
The Hot connects to the '+' inputbut if you use connectors for the simple SE to balanced convertion there will be a signal ground connected, no ?
The Return/Shield connects to the '-' input.
While we still have a large number of retro members. The RCA shell/shield does connect to the chassis.that said ...
RCA connectors are always isolated from chassis, and for a good reason, right ?
It took 20 years to get the XLR thing correct, it will take another for the RCA connector.
Well No.and besides, XLR also happens to have a 4th 'pin' for chassis connection, and also for a good reason, right ?
The XLR connector tab/shell is no longer connected in balanced cables. (although it may be connected in chassis connectors)
It's all about what is called the pin #1 problem (even if the connector is numbered differently)
Jim Brown discusses the problem in several papers.
Audio Systems Group, Inc. Publications
good read
Hi benb,😀
Thanks for that,good to keep for a ref!
NS
Hi benb,😀
Thanks for that,good to keep for a ref!
NS
HI Andrew,
I need a Volume control for a balanced circuit,it's input will source from AK4393.
On the data sheet it recommends going from bal to SE and putting a pot there and reconverting back to bal to enter the bal amps ,In your opinion is this the best way to get a volume control in a balanced system?
Would a bal B1 do the job? I was considering it and use a switched att with matched smd's to over come mismatch of a ganged pot?
I have read about 2 v is output of AK4393 and that is enough to drive my amps,My system is bal 4 way, 2 bal F5 for highs,2 alph J's for mids,2 aleph's for bass and 2 550Wchip amps to drive 2 Xoc1's 18subs ,I have 2 Ba3's to replace those almost finished to replace chip amps.
Thanks for the links,I'll read it now.....
Thanks,
NS
I need a Volume control for a balanced circuit,it's input will source from AK4393.
On the data sheet it recommends going from bal to SE and putting a pot there and reconverting back to bal to enter the bal amps ,In your opinion is this the best way to get a volume control in a balanced system?
Would a bal B1 do the job? I was considering it and use a switched att with matched smd's to over come mismatch of a ganged pot?
I have read about 2 v is output of AK4393 and that is enough to drive my amps,My system is bal 4 way, 2 bal F5 for highs,2 alph J's for mids,2 aleph's for bass and 2 550Wchip amps to drive 2 Xoc1's 18subs ,I have 2 Ba3's to replace those almost finished to replace chip amps.
Thanks for the links,I'll read it now.....
Thanks,
NS
Last edited:
Don't bother with my opinion. Read Bruno Putzeys' article and the Thread discussing this method.HI Andrew,
I need a Volume control for a balanced circuit,it's input will source from AK4393.
On the data sheet it recommends going from bal to SE and putting a pot there and reconverting back to bal to enter the bal amps ,In your opinion is this the best way to get a volume control in a balanced system?
A B1 would be nearly impossible to keep balanced. Again, read Putzeys.Would a bal B1 do the job? I was considering it and use a switched att with matched smd's to over come mismatch of a ganged pot?
The F5 was never designed to be balanced. Read the F5x, or the balanced version of the F5tI have read about 2 v is output of AK4393 and that is enough to drive my amps,My system is bal 4 way, 2 bal F5 for highs,
2 alph J's for mids,2 aleph's for bass and 2 550Wchip amps to drive 2 Xoc1's 18subs ,I have 2 Ba3's to replace those almost finished to replace chip amps.
Thanks for the links,I'll read it now.....
Thanks,
NS
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