All information can be found in the wiki.
http://www.diyaudio.com/wiki/index.php?page=BPA300+Group+Buy+Round+2
(Original BPA board)
Boards will be $10 each. That is $20 for one monoblock (2 boards) and $40 for a stereo set (4 boards)
The same boards are used as the last group buy. BOM can be found in the wiki.
All BPA300 round one participents please refer to the WIKI.
Feel free to post your names down in the thread if you wish, but adding your name to the wiki is necessary.
http://www.diyaudio.com/wiki/index.php?page=BPA300+Group+Buy+Round+2
(Original BPA board)
Boards will be $10 each. That is $20 for one monoblock (2 boards) and $40 for a stereo set (4 boards)
The same boards are used as the last group buy. BOM can be found in the wiki.
All BPA300 round one participents please refer to the WIKI.
Feel free to post your names down in the thread if you wish, but adding your name to the wiki is necessary.
mikesnowdon said:
The amplifier is not really designed for this purpose, i have not actually reviewed this very much, but i would not reccomend it, especially into 8ohms.
mikesnowdon said:
You are taking about 150w per channel into 8ohms. You are fine without balanced input, you just have to use the DRV134 opamp on the inputs or equivalent.
Since I am really noob ... (like I just started this hobby about 4 months ago, I am reading "The art of electronics" to "catch-up" with the lingo of the boards here...
Is it possible somone post a better schematic of what wires go where... I can get a 70% solution looking at the posted Jpegs, but I need like a 110% solution. This may be a little ambitious on my part to undertake a project with my small level of knowledge but i figure with everyones help I can get though it and you gotta get your feet wet somehow.
Is it possible somone post a better schematic of what wires go where... I can get a 70% solution looking at the posted Jpegs, but I need like a 110% solution. This may be a little ambitious on my part to undertake a project with my small level of knowledge but i figure with everyones help I can get though it and you gotta get your feet wet somehow.
Has no-one used them like this? I currently drive 8 ohm speakers of a single 3886 per channel so 3 x bridged is surely going to be better and provide more power?
OK, I got confused because the input connections are just + and ground. Isn't this the same as single ended? If I use a single board per channel wont I be OK if I use a preamp?
PS: sorry to ask so many questions, Im still interested ut I need to know if these things will work for what I intend to do.
Cheers,
Mike
mikesnowdon said:
Has no-one used them like this? I currently drive 8 ohm speakers of a single 3886 per channel so 3 x bridged is surely going to be better and provide more power?
OK, I got confused because the input connections are just + and ground. Isn't this the same as single ended? If I use a single board per channel wont I be OK if I use a preamp?
PS: sorry to ask so many questions, Im still interested ut I need to know if these things will work for what I intend to do.
Cheers,
Mike
The power output of using a single board into 8 ohms, would be just over using a single 3386, even though 3 are in use.
The board labeling does not really reflect the design purpose. This does give the impression the board can be used single ended but as i said, this is not what the designer had in mind. I would highly reccomend using two boards per channel, and a £5 balanced line converter setup.
@ Halo6, you may find this useful.
mikesnowdon said:Whats the GBP price? £££££
I know this is a complete pain, but i cant accept payment for boards in pounds. This is simply becuase the pcb company only takes USD. It would be a lot easier for you to pay by USD.
Just for reference, a full board set is costing about £28. ( 4 boards ). These boards are 4oz copper and bloody heavy!
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