Hello Audio Gurus
I want to build a 500 Watts Rms Amplifier for my home theater system in about 4 Weeks.So I request you people to find me a Circuit that has a good balance of power and ease in building it ,PCB availability would be a PLUS.🙂
Thank your for Help in Advance.
I want to build a 500 Watts Rms Amplifier for my home theater system in about 4 Weeks.So I request you people to find me a Circuit that has a good balance of power and ease in building it ,PCB availability would be a PLUS.🙂
Thank your for Help in Advance.
Change that to 4months and you have some hope of researching your target brief in the time scale.
Is it going to be used for a sub channel?
Otherwise, I can only imagine watching the movie at a medium size stadium 🙂
Otherwise, I can only imagine watching the movie at a medium size stadium 🙂
@vzaichenko
You are right,I am going to use this for Sub Woofer.
planing to build a cinematic theater with 4 subs in total. ��
You are right,I am going to use this for Sub Woofer.
planing to build a cinematic theater with 4 subs in total. ��
Apex B500 or ... slewmaster MT-200 BJT
(below) is a good 250+ /8R and 500W @ 4R with 70V rails ( 500VA trafo/40kuf).
Plenty of SOA with 3 -pair Sanken MT-200. I only have a 400VA - 60Vdc rail power supply , so only 200W
for my 8R woofer. 🙁
BJT can do it (you don't always need D) .
OS
(below) is a good 250+ /8R and 500W @ 4R with 70V rails ( 500VA trafo/40kuf).
Plenty of SOA with 3 -pair Sanken MT-200. I only have a 400VA - 60Vdc rail power supply , so only 200W
for my 8R woofer. 🙁
BJT can do it (you don't always need D) .
OS
Attachments
Thanks , MT-200's were sort of made for "grunt" 😀 - 6+ A SOA @ 60V.
Besides Semelab's "special BJT's" , they are the only choice for
any 2-4R loads (Sub's). Very low beta .... only good with EF3's. Single pair mt-200
classic Japanese amps are often rated 100-125W units. Multiple pair needs TO-3P
drivers.
Edit - 3 pair (18A) blow away even 5 pair ON TO-3p/264 - @ 10+ A (100ms).
OS
Besides Semelab's "special BJT's" , they are the only choice for
any 2-4R loads (Sub's). Very low beta .... only good with EF3's. Single pair mt-200
classic Japanese amps are often rated 100-125W units. Multiple pair needs TO-3P
drivers.
Edit - 3 pair (18A) blow away even 5 pair ON TO-3p/264 - @ 10+ A (100ms).
OS
Last edited:
Just updated the first post - 10 input stages that you can hook to 3 output
stages (modular).
Link - http://www.diyaudio.com/forums/solid-state/248105-slewmaster-cfa-vs-vfa-rumble.html#post3753356
Post # contains schema / toner artwork ...
OS
Hi OS! Why do you say only choice?
I am going from a lot of time with 5 pairs TO3 (metal cans) Motorola/ONsemi 15003/15004. 10 Pairs for 2 Ohm.
Never had a trouble, PA use as well. While I like the MT200 as well, I do not think they are only choice.
"Only CHEAP choice" ... MJ15xxx are SLOW as dogpoo (2mhz) 😱
I guess for a subamp - OK ? harder to source than plastic packages.
Mt- 200's are 35mhz fT.
OS
Go ahead and build it .... but 4 pair with a EF2 is hardly 500w 😕. The forum amp ,
(badger) is exactly the same minus 1 pair - rated at 150 -8R /250 - 4R 🙄 .
OS
If you could Provide a PCB of your Amp It world be a good start for me,Because your amplifier seems nice.
And What about the Apex B500,It doesn't supplies 500 Watts Rms?
And What about the Apex B500,It doesn't supplies 500 Watts Rms?
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