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#451 |
diyAudio Member
Join Date: Dec 2013
Location: Singapore
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ivan ,
That great myint |
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#452 |
diyAudio Member
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This is indeed good news, I’m interested as well.
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#453 |
diyAudio Member
Join Date: Dec 2013
Location: Singapore
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dear Ivan,
transformer (attach) can use 9028 & 9038 pro dac ? one of diy munber selling transformer for ian pcb (9028) i would like to use quan hao pro dac & your IV out put pcb board. best regards myint |
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#454 |
Output transformers for DACs
diyAudio Member
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Sure, you can use it for 9028 and 9038 pro DACs, but it if it will be the last version of 1:7 turns ratio.
__________________
Ivan |
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#455 |
diyAudio Member
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Hi bisesik
I do not have the experience to understand or implement differential mode. If it entails a balanced output arrangement, then that is not what I am after. I need a single ended output as you mentioned. I was under the impression I could still maintain SE output while implementing a dual mono configuration by using a second D3 board and TDA1541A. I thought Ryan already had a set of your transformers. I guess I misunderstood and he had simply tried another type of transformer IV stage and had ordered a set of transformers from you. Ryan designed his D3 boards with a IV resistor and DC offset compensation circuitry to null the offset on board. I was hoping that meant the DC offset issue was irrelevant. Please excuse my ignorance regarding these issues. I would be interested in any transformer IV stage solution you were able to come up with that would allow me to avoid further complexity in this first DAC build of mine. |
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#456 |
Output transformers for DACs
diyAudio Member
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chromenuts,
Differential mode of any DAC connection relates to its performance, DC-offset cancellation in case of TDA1541 is a bonus. Balanced or SE output is a part of the secondary coils and independent from DAC connection mode. In any case as I wrote, I can offer two versions (or one versatile) for regular or for differential mode of TDA1541 connection.
__________________
Ivan |
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#457 |
diyAudio Member
Join Date: Jan 2005
Location: a littlee town in western denmark
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time to tell how the bisesik trafo play
my dac is JLsound AK4493,,with clock board and usb input i have used 3 different output board JLsound output board with Newclassd discrete opamp---absolute not bad Mirand discrete output board---a little bit better and now bisesik output trafo---by far the best sound from the trafo..strong, dynamic,open,,nice for the ear,,lovely sound i use the muting from JLsound output board,,so i have no click from the dac well done bisesik Best Bjarne |
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#458 |
diyAudio Member
Join Date: Apr 2009
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What type trafo are you used with 4493?
1:1 SE or 1:1 balanced? |
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#459 |
diyAudio Member
Join Date: Jan 2005
Location: a littlee town in western denmark
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I use 1:1 SE to my 4P1L preamp
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#460 |
diyAudio Member
Join Date: Oct 2013
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Hello Ivan;
4493 needs Low pass filter after dac chip. With output transformer are we eliminate this? Or still we need it before or after transformer? |
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