Amplifier must be in use some time (years), and than you know is it good. RegardsFound those pictures and schematics on net so I was curious does that work?
Regards
Schematics.
I resized this picture because it's to big,if you want better resolution I will send you by mail.
regards
Sir can you post pcb layout of this schematics?
Here is link of site where I have find schematics:
Google Image Result for http://www.postimage.org/PqHZCES.jpg
Google Image Result for http://www.postimage.org/PqHZCES.jpg
apex,
your psu
behringer torroid x-former
does this have model as you order for your 100
500 & 900 module
or is it costumized?
your psu
behringer torroid x-former
does this have model as you order for your 100
500 & 900 module
or is it costumized?
Dot is katode of LED inside NSL32, resistor is on oposite side,
Regards
Thanks Apex...I see it...so I think "dot/catode" on body NSL 32 must be same with "dot" code on PCB B500/H900. Catode NSL-32 connected with R 6K8/2W and negatif dioda zener 15V. Its OK?🙄
Pozdrav.
Hi Apex. I have 2 questions for you:
1.What voltage do you recommend me if there are two 2SC5200 and two 2SA1943 on pcb?
2.What power will I get with +/-56V?
Thanks
Regards
1.What voltage do you recommend me if there are two 2SC5200 and two 2SA1943 on pcb?
2.What power will I get with +/-56V?
Thanks
Regards
1,2 - two pairs 2SA/2SC with +/-56V you will get about 120W/8R (resonable THD)Hi Apex. I have 2 questions for you:
1.What voltage do you recommend me if there are two 2SC5200 and two 2SA1943 on pcb?
2.What power will I get with +/-56V?
Thanks
Regards
Regards
the 1943/5200 have a very poor SOAR at higher voltages.
Using +-56Vdc should give good 8ohm performance, but these devices can only manage 40 to 45degree phase angle when kept cool.
However, using +-50Vdc, an 8ohm load of 60degree phase angle can be driven to full power of ~110W. You still have to keep them cool to stay within the de-rated 100ms SOAR
Using +-56Vdc should give good 8ohm performance, but these devices can only manage 40 to 45degree phase angle when kept cool.
However, using +-50Vdc, an 8ohm load of 60degree phase angle can be driven to full power of ~110W. You still have to keep them cool to stay within the de-rated 100ms SOAR
How you comment QSC amplifiers RMX series?the 1943/5200 have a very poor SOAR at higher voltages.
Using +-56Vdc should give good 8ohm performance, but these devices can only manage 40 to 45degree phase angle when kept cool.
However, using +-50Vdc, an 8ohm load of 60degree phase angle can be driven to full power of ~110W. You still have to keep them cool to stay within the de-rated 100ms SOAR
http://www.qscaudio.com/support/library/schems/Current/RMX Series/rmx1450.pdfI'm not qualified to comment on something I don't know.
Regards
apex
sir,
i bought all the b500 components...i noticed that some components in the schematic differ from the pcb placement guide...
i need to know which one to follow...should i follow the schema or the pcb???...im using two psu for testing 1 is 50 0 50vac @20amps 2nd is 55 0 55vac @25amps...
tnx...
regards...
sir,
i bought all the b500 components...i noticed that some components in the schematic differ from the pcb placement guide...
i need to know which one to follow...should i follow the schema or the pcb???...im using two psu for testing 1 is 50 0 50vac @20amps 2nd is 55 0 55vac @25amps...
tnx...
regards...
Only difference post #1 and post #8 is 2k2/5W instead 4k7/5W both is OK, but if you use 2x50v or 2x55v put 2k2 or 3k3, for higher rail voltage use 4k7.apex
sir,
i bought all the b500 components...i noticed that some components in the schematic differ from the pcb placement guide...
i need to know which one to follow...should i follow the schema or the pcb???...im using two psu for testing 1 is 50 0 50vac @20amps 2nd is 55 0 55vac @25amps...
tnx...
regards...
Regards
Only difference post #1 and post #8 is 2k2/5W instead 4k7/5W both is OK, but if you use 2x50v or 2x55v put 2k2 or 3k3, for higher rail voltage use 4k7.
Regards
tnx, sir...
i also noticed differ diodes
post #1 used IN4007
post #2 used IN4004
which diode should i use for maximum safety operation with these rail voltages???...
i'm also planning of installing 8 pairs per rail...
but i will use 4 pairs for testing...🙂
tnx...
regards...
Attachments
nice justification
in4007 higher voltage same amp as 4004
engel,
yupfzzz... i've noticed they have same current rating only that IN4007 has a much higher voltage rating than IN4004...
i just want sir mile's advice...anyway...tnx for your advice...i highly appreciated it...🙂🙂🙂🙂🙂🙂
i'd be using IN4007 as you adviced...
tnx...
regards...
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