If this means that it gives you more than 15dB, you should be just fine.
TECHNOLOGY | ONKYO Asia and Oceania Website
TECHNOLOGY | ONKYO Asia and Oceania Website
This is an interesting thread:
http://www.avsforum.com/avs-vb/showthread.php?p=17734984#post17734984
Suggest that it can go up to 7V, which would be great if you have efficient speakers, but if not then you should probably look for an amp with gain.
http://www.avsforum.com/avs-vb/showthread.php?p=17734984#post17734984
Suggest that it can go up to 7V, which would be great if you have efficient speakers, but if not then you should probably look for an amp with gain.
Hi All,
I have been asked quite a few times if I had any F4 boards available or if I would do a GB. So after having enjoyed doing the http://www.diyaudio.com/forums/group-buys/134554-gb-f5-pcb.html, I could just as well make some F4's.
In this thread, I would like to hear if people would be interested in such a GB.
Here is the service manual btw:
http://www.firstwatt.com/downloads/f4_om.pdf
Christian
Hi Christian,
I am curious what PCB CAD program is used to create such realistic looking PCB layouts, it looks really good!
Cheers Michael
I use the program called pcb (not very smart name) from gEDA. It is free and open source and runs great on linux.
Website: gEDA Project's Homepage
The learning curve is quite steep, but when you get the hang of it, its a great tool.
Website: gEDA Project's Homepage
The learning curve is quite steep, but when you get the hang of it, its a great tool.
I don't even know how much output my OPPO BDP-83 Blu-ray Player has;
hopefully, it will be enough?
I guess they expect you o dig to find the answer.
I already have the F5 PCB. I tried to get yours, but you were sold out so I went on E-bay. I think I'll get your F4 and a F3, and try them all. I needed to get two mono blocks with four 10" X 6" Heat Sinks. I already have the chassis and transformers. Your PS PCB were for stereo, so I had to get single ones elsewhere. If I can I'll put all three in the cabinets. The boards and components aren't that expensive. The power supply and the rest of it are all the same. I sure want the F4 to work. What do you think?
Ray
Ray
Hi All,
I have been asked quite a few times if I had any F4 boards available or if I would do a GB. So after having enjoyed doing the http://www.diyaudio.com/forums/group-buys/134554-gb-f5-pcb.html, I could just as well make some F4's.
In this thread, I would like to hear if people would be interested in such a GB.
Here is the service manual btw:
http://www.firstwatt.com/downloads/f4_om.pdf
Christian
I sure would like to order some F4's. Do you think this project would work:
"I already have the F5 PCB. I tried to get yours, but you were sold out so I went on E-bay. I think I'll get your F4 and a F3, and try them all. I needed to get two mono blocks with four 10" X 6" Heat Sinks. I already have the chassis and transformers. Your PS PCB were for stereo, so I had to get single ones elsewhere. If I can, I'll put all three in the cabinets. The boards and components aren't that expensive. The power supply and the rest of it are all the same. I sure want the F4 to work. What do you think?"
Ray
It sounds like a great plan, but I can't really see the problem.
BTW, you can use one psu board per monoblock - more capacitance is better.
So rotary switches will work for changing the power supply to F3, F4, or F5 with all the outputs mounted on the heat sinks, and then selecting where the
input goes to and output comes from to either F3, F4, or F5.
Ray
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