Hi Owen,
Fantastic news about the new NTD circuit variants - I will certainly be interested to try them all! A few further questions:
1) Will they be adaptable for dual mono? I haven't posted my experiences with the NTD1 v2 yet (I'm still tweaking) but I am loving the dual mono and will definitely be interestd in continuing with it
2) Will it be possible to re-use the existing heatsink - where needed?
3) What will the power requirements be? +/- 32v across the board or will they need different psu's? I'm starting to plan ahead ;-)
Cheers,
Crom
hello,
could you tell me how I can buy the last BAL to SE pcb of this really good project ?
I find BAL-BAL, SE-SE, but not BAL-SE...
regards,
Richard
could you tell me how I can buy the last BAL to SE pcb of this really good project ?
I find BAL-BAL, SE-SE, but not BAL-SE...
regards,
Richard
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There was not sufficient demand/need for the bal-se so Owen didn't make any for this batch. Not sure what plan is for future of BAL-SE design ... Have to ask opc ...
Chris
Chris
Owen,
When you say the new IV produces less thermal load than the 'classic' how much less are we talking? Do we still need to worry about substantial heatsinks? Or is the answer to this quesrion still waiting for you to prototype the last version and find out what real world thermal situation is?
Cheers,
Chris
When you say the new IV produces less thermal load than the 'classic' how much less are we talking? Do we still need to worry about substantial heatsinks? Or is the answer to this quesrion still waiting for you to prototype the last version and find out what real world thermal situation is?
Cheers,
Chris
Ok I think posting 3 times in a row is a bit of a faux pas but ...
For BAL-SE you could build two LPUHP boards and only populate 2 of the LME49610 buffer ICs on each LPUHP board. This would give a dual mono BAL-SE circuit 😀
ok, so I am going to buy 2 SE-SE pcb, I will put transformers to unbalanced the inputs.
I there any "kit" available, or only pcb ?
I there any "kit" available, or only pcb ?
one last thing,
I calculate the cost for 2 SE-SE pcb on the google sheet, but I do not find any paypal address to pay someone... Somebody could help me ?
regards,
Richard
I calculate the cost for 2 SE-SE pcb on the google sheet, but I do not find any paypal address to pay someone... Somebody could help me ?
regards,
Richard
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I've seen some references to these headphone amps being used as preamps and on that basis I may have use for one...
My DAC has passive balanced transformer based I/V output which is followed by a balanced shunt attenuator (actually the one at the bottom of this page: K & K Audio - Lundahl Transformers, audio DIY kits and more).
I have new power amps nearing completion; they have SE inputs and will be located remotely from the DAC.
I therefore need a unity gain line stage that will accept the output from the balanced attenuator and drive interconnects (2-3metres) via single-ended phono sockets. Does 'The Wire' fit the bill?
I think it does and believe I would need a bal/bal module (wired for se output) and a psu module?
Cheers
Ray
My DAC has passive balanced transformer based I/V output which is followed by a balanced shunt attenuator (actually the one at the bottom of this page: K & K Audio - Lundahl Transformers, audio DIY kits and more).
I have new power amps nearing completion; they have SE inputs and will be located remotely from the DAC.
I therefore need a unity gain line stage that will accept the output from the balanced attenuator and drive interconnects (2-3metres) via single-ended phono sockets. Does 'The Wire' fit the bill?
I think it does and believe I would need a bal/bal module (wired for se output) and a psu module?
Cheers
Ray
Hi Owen,
1st post and I am happy to start with this: Thank you! Great work!
I'm so impressed - not only by your craftsmanship bot even more so by your comittment to the diy-community. You share your knowledge and a lot (I guess most) of your spare time. This cannot be appreciated enough! Again, thank you so much!
I added myself to the list with one BAL-BAL and 3 PSUs. Hope that's ok. I'll wait for further info and payment instructions.
Something that would help me and maybe others, too is a simple wiring diagram. I have to admit, that the question, what and where to connect ground still confuses me a lot. Especially, in cases where one puts dacs, amps and maybe more in one case.
A wiring diagram would make things much easier and safer for me and some of the other non-engineeers I think. 😉 I beleive you mentioned a wiring diagram in some earlier post.
Once more: thank you! Stunning work!
Stephan
1st post and I am happy to start with this: Thank you! Great work!
I'm so impressed - not only by your craftsmanship bot even more so by your comittment to the diy-community. You share your knowledge and a lot (I guess most) of your spare time. This cannot be appreciated enough! Again, thank you so much!
I added myself to the list with one BAL-BAL and 3 PSUs. Hope that's ok. I'll wait for further info and payment instructions.
Something that would help me and maybe others, too is a simple wiring diagram. I have to admit, that the question, what and where to connect ground still confuses me a lot. Especially, in cases where one puts dacs, amps and maybe more in one case.
A wiring diagram would make things much easier and safer for me and some of the other non-engineeers I think. 😉 I beleive you mentioned a wiring diagram in some earlier post.
Once more: thank you! Stunning work!
Stephan
Good evening.
I have been lurking this forum for some time, and came to this thread to try and get some information regarding the Wire, and buying its PCBs. I know that my questions, may have already been answered, but there are some threads with more than 200 posts, and filtering that much information is really difficult. So, if you have the patience...
Are there still boards for a SE-SE Wire, and accompanying PSU? If yes, how can I order/buy them, and what would be the shipping costs, taxes etc to Portugal?
Thanks in advance for the possible answers!
EDIT: I went ahead and added myself on the Excel list. I would still like to know about shipping and taxes.
I have been lurking this forum for some time, and came to this thread to try and get some information regarding the Wire, and buying its PCBs. I know that my questions, may have already been answered, but there are some threads with more than 200 posts, and filtering that much information is really difficult. So, if you have the patience...
Are there still boards for a SE-SE Wire, and accompanying PSU? If yes, how can I order/buy them, and what would be the shipping costs, taxes etc to Portugal?
Thanks in advance for the possible answers!
EDIT: I went ahead and added myself on the Excel list. I would still like to know about shipping and taxes.
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Hi Owen, hi everybody,
Just upgraded my order and paid (gladly!) the newly calculated total amount via paypal as instructed.
Can't wait! 🙂
Stephan
Just upgraded my order and paid (gladly!) the newly calculated total amount via paypal as instructed.
Can't wait! 🙂
Stephan
Hi Owen,
A quick message to let you know that your LPUHP are finally singing. It tooks me some time to finish this project but your amp are now the main key of my setup. I just love the way they sound 😉
Some pictures:
A quick message to let you know that your LPUHP are finally singing. It tooks me some time to finish this project but your amp are now the main key of my setup. I just love the way they sound 😉
Some pictures:
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Hi PandazYa,
wow, this looks impressive. What is it? 4 channels of LPUHP, 2 channels class-D and 3 stereo-DACs? What moodules besides the LPUHP do you use? What do you use it for, a active 3-way speaker? If so, how do you realise the digital crossover?
Regards,
Ulrich
wow, this looks impressive. What is it? 4 channels of LPUHP, 2 channels class-D and 3 stereo-DACs? What moodules besides the LPUHP do you use? What do you use it for, a active 3-way speaker? If so, how do you realise the digital crossover?
Regards,
Ulrich
Hi Owen,
I had the idea of paralleling LME49600s in in the back mind for I while. Now I find the ready designed PCBs here. This is just great and convenient. I see you went through all the design issues like how to attach the heat sink, optimum number of devices etc. Great work. Thanks for sharing.
I placed my order of two LPUHP boards in the spreadsheet. What are the next steps, how to pay? Do you have the board on stock already?
Regards,
Ulrich
I had the idea of paralleling LME49600s in in the back mind for I while. Now I find the ready designed PCBs here. This is just great and convenient. I see you went through all the design issues like how to attach the heat sink, optimum number of devices etc. Great work. Thanks for sharing.
I placed my order of two LPUHP boards in the spreadsheet. What are the next steps, how to pay? Do you have the board on stock already?
Regards,
Ulrich
PandazYa, very impressive set up... looks stunning 🙂
From what I can see ... 4 x LPUHP amps, 3 x Curryman DAC's, 2 x AudioPower SDA-400 Class D amps with DPS-400 SMPS... can't quite tell what's feeding the DACs. How're you planning on implementing the XO?
Paul
From what I can see ... 4 x LPUHP amps, 3 x Curryman DAC's, 2 x AudioPower SDA-400 Class D amps with DPS-400 SMPS... can't quite tell what's feeding the DACs. How're you planning on implementing the XO?
Paul
I can see an ExaU2I board, I guess this is how the whole setup is fed and Xover must be done on computer 😉
Thank you guys for your kind words. I'm indeed using an exau2i to feed the 3 DAC's, it's located under the DAC's power supply 😉
I manage the digital xo on the computer with J.river and RePhase. This is the heart of my 3 way active speaker. I have a small problem with one channel of the SDA-400 classD amplifier (my mistake) so I'm waiting the replacement parts to finaly put all this mess in the black gloss plexi box!!!
I manage the digital xo on the computer with J.river and RePhase. This is the heart of my 3 way active speaker. I have a small problem with one channel of the SDA-400 classD amplifier (my mistake) so I'm waiting the replacement parts to finaly put all this mess in the black gloss plexi box!!!
62mm wide x 120mm long
PandazYa:
Absolutely beautiful setup! I really like the arrangement, and it looks like it's going to be a pretty powerful active speaker setup! I'll be following along to see how it all looks boxed up.
Cheers,
Owen
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