very interested !
Hello, i m very interested in buying a complete balanced dac version ; is it still possible?
thx a lot !
my mail : yleflohic@wanadoo.fr
Hello, i m very interested in buying a complete balanced dac version ; is it still possible?
thx a lot !
my mail : yleflohic@wanadoo.fr
Hi all,
This is contain for simple 1541a DAC (Full assemble & test)
1. TDA1541/1541a DAC Board with close match MKP coupling caps, U can choose add one small PCB with 24K GOLD pins can put into top of the 1541/1541a DAC PCB, so DAC will operate in parallel (two 1541/1541a) condition. But U needs to change some value of resistor.
2. CS8412-IS ¡V The best digital receiver, more stable Industrial Grade of CS8412-CS Receiver board. With SAA7220P/B (The best DF for I2S digital Signal) & re-clock module. Use Daburu Nano-Amorphous core with 6N wire pulse transformers to ensure wide band-width of stable digital data. That means this DAC can operate in three modes. A) 1541/1541a + re-clock+ DF, B) 1541/1541a + re-clock, C) 1541/1541a NOS mode! Why we had three modes, changing sound quality in changing different in operatio mode of DAC will large & cheaper than change any cable or amps!
3. Ultra Fast, Clean & Stable Regulated power supply w/LT1033 & 1085.
4. Belden 2 GHz Digital cable will free to follow with kit.
5. Belden Heavy Silver Coated Signal wire will follow with kit.
6. Two IV & LPF PCB (Full assemble & tested), one will passive & one will active. Use Two Single OP-amp or 4 Single OP-amp. Original follow with kit was Philips 5534.
7. Optional 5687 HV & High Current (Dynamic Cathode follower) kit. (Contain DALE Resistors, 1958s 5687 tube & 6 Aluminum FOIL capacitors. (Output caps suggest use 0.47uf, since I did not advise use 0.47+0.01uf) capacitors. So I will follow with 6 pcs of 0.15uf. (Matched). User can choose 0.15, 0.3, 0.45uf value output caps. Sound texture for parallel several same value caps will more balance! This Optional Tube buffer will provide an Ultra LOW OUTPUT IMPEDANCE (approx 0.9 time of original op-amp output Impedance). I strong suggest use a small box & DIY this High Voltage & High Current Cathode Follower Output stage, although U not need use in DAC, U can use for another audio equipment such as coming digital radio Broadcast after digital change back to analogue. U can use this cathode follower connect for it to increase more analogue sound stage!
total contain 6 pcs of full assemble & test PCBs.
Price included postage will USD 165 only.
Extra Op-amp AD797 or OP-42 ( military grade) USD 20 match pair.
Tube Buffer ( optional ) USD 28.
USD4 for reg.mail parcel post by Hong Kong Post Office For easy tracking!
Photo show was simple kit, one IV+LPF was put into DAC board already. Next photo was another IV+LPF which use 4 0o-amp.
Very interest was use can use dfifferent to tunning the sound!( Different brand of Op-amp set up in LPF & IV)
I accept payapl.
Full balance Detail will coming.
thx
thomas
This is contain for simple 1541a DAC (Full assemble & test)
1. TDA1541/1541a DAC Board with close match MKP coupling caps, U can choose add one small PCB with 24K GOLD pins can put into top of the 1541/1541a DAC PCB, so DAC will operate in parallel (two 1541/1541a) condition. But U needs to change some value of resistor.
2. CS8412-IS ¡V The best digital receiver, more stable Industrial Grade of CS8412-CS Receiver board. With SAA7220P/B (The best DF for I2S digital Signal) & re-clock module. Use Daburu Nano-Amorphous core with 6N wire pulse transformers to ensure wide band-width of stable digital data. That means this DAC can operate in three modes. A) 1541/1541a + re-clock+ DF, B) 1541/1541a + re-clock, C) 1541/1541a NOS mode! Why we had three modes, changing sound quality in changing different in operatio mode of DAC will large & cheaper than change any cable or amps!
3. Ultra Fast, Clean & Stable Regulated power supply w/LT1033 & 1085.
4. Belden 2 GHz Digital cable will free to follow with kit.
5. Belden Heavy Silver Coated Signal wire will follow with kit.
6. Two IV & LPF PCB (Full assemble & tested), one will passive & one will active. Use Two Single OP-amp or 4 Single OP-amp. Original follow with kit was Philips 5534.
7. Optional 5687 HV & High Current (Dynamic Cathode follower) kit. (Contain DALE Resistors, 1958s 5687 tube & 6 Aluminum FOIL capacitors. (Output caps suggest use 0.47uf, since I did not advise use 0.47+0.01uf) capacitors. So I will follow with 6 pcs of 0.15uf. (Matched). User can choose 0.15, 0.3, 0.45uf value output caps. Sound texture for parallel several same value caps will more balance! This Optional Tube buffer will provide an Ultra LOW OUTPUT IMPEDANCE (approx 0.9 time of original op-amp output Impedance). I strong suggest use a small box & DIY this High Voltage & High Current Cathode Follower Output stage, although U not need use in DAC, U can use for another audio equipment such as coming digital radio Broadcast after digital change back to analogue. U can use this cathode follower connect for it to increase more analogue sound stage!
total contain 6 pcs of full assemble & test PCBs.
Price included postage will USD 165 only.
Extra Op-amp AD797 or OP-42 ( military grade) USD 20 match pair.
Tube Buffer ( optional ) USD 28.
USD4 for reg.mail parcel post by Hong Kong Post Office For easy tracking!
Photo show was simple kit, one IV+LPF was put into DAC board already. Next photo was another IV+LPF which use 4 0o-amp.
Very interest was use can use dfifferent to tunning the sound!( Different brand of Op-amp set up in LPF & IV)
I accept payapl.
Full balance Detail will coming.
thx
thomas
An externally hosted image should be here but it was not working when we last tested it.
This is extra IV + LPF PCB. Use 4 Op-amps that U can use different Op-amp set up to tunning the sound!
thx
thomas
thx
thomas
An externally hosted image should be here but it was not working when we last tested it.
close up of power supply.
An externally hosted image should be here but it was not working when we last tested it.
close up of Multi BC caps power supply.
An externally hosted image should be here but it was not working when we last tested it.
Hi Thomas,
As per email, I have sent $260 payment for the items listed below. Please don't worry about the transformer on post #1301. Will get them here. BTW, what size transformer should I be getting? Is 30VA, 2 x 0-9V toroidal OK? Or something smaller, like a 15VA, 2 x 0-9V.
One set DAC set up as photos shown, ( with two set of IV+Buffer) USD 165.
One set of source selection board + Panel selection board. USD45
USB input USD 18.
Extra OP42 opamp USD 20.
Extra Digital cable USD 7.
Add $5 for register mail.
Thanks 🙂
As per email, I have sent $260 payment for the items listed below. Please don't worry about the transformer on post #1301. Will get them here. BTW, what size transformer should I be getting? Is 30VA, 2 x 0-9V toroidal OK? Or something smaller, like a 15VA, 2 x 0-9V.
One set DAC set up as photos shown, ( with two set of IV+Buffer) USD 165.
One set of source selection board + Panel selection board. USD45
USB input USD 18.
Extra OP42 opamp USD 20.
Extra Digital cable USD 7.
Add $5 for register mail.
Thanks 🙂
dac kit still available?
Hello Thomas ,
I'm in for 1 complete full balance DAC kit.
let me know if it's possible ! thx a lot !
my mail :
yleflohic@wanadoo.fr
(terms and conditions/postage cost, patypal use?? are welcome !)
Hello Thomas ,
I'm in for 1 complete full balance DAC kit.
let me know if it's possible ! thx a lot !
my mail :
yleflohic@wanadoo.fr
(terms and conditions/postage cost, patypal use?? are welcome !)
hi gomi2 & all,
sure U all can get them in reasonable price.
I was waiting for the isolate power transformers. probably can use USD 15 to get one pair. ( one for 5V & one for 15V ).
But postage need added little, becuase added two power transformers increase weight a lot!
Detail contain of PCB about the full balance DAC I will post today evening!
eg. How many pcs of full balance which compare with simple kit!
thx
thomas
sure U all can get them in reasonable price.
I was waiting for the isolate power transformers. probably can use USD 15 to get one pair. ( one for 5V & one for 15V ).
But postage need added little, becuase added two power transformers increase weight a lot!
Detail contain of PCB about the full balance DAC I will post today evening!
eg. How many pcs of full balance which compare with simple kit!
thx
thomas
Hi Thomas,
Yes, it's a very good idea in publishing details concerning modules and PCB sets included in the Full Balanced DAC. Remember I'm in for 1...
What are the benefits of the tube buffer stage ?
Hope to read you soon !
I'm waiting for your answer...😉
Yes, it's a very good idea in publishing details concerning modules and PCB sets included in the Full Balanced DAC. Remember I'm in for 1...
What are the benefits of the tube buffer stage ?
Hope to read you soon !
I'm waiting for your answer...😉
Hi all,
Difference between Real Full balance & Simple version!!!!
Full assemble & test)
1. TDA1541/1541a DAC Board with close match MKP coupling caps, U can choose add one small PCB with 24K GOLD pins can put into top of the 1541/1541a DAC PCB, so DAC will operate in parallel (two 1541/1541a) condition. But U needs to change some value of resistor.
>>>>>>1a. Simple version was use 1 pc of 1541/1541a PCB for two chaanel (stereo), but real full balance need two pcs of PCB & every 1541/1541a ( stereo chip) was handling for one channel + & - data.------- so 1541/1541a DAC PCB +1 pc.
2. CS8412-IS ¡V The best digital receiver, more stable Industrial Grade of CS8412-CS Receiver board. With SAA7220P/B (The best DF for I2S digital Signal) & re-clock module. Use Daburu Nano-Amorphous core with 6N wire pulse transformers to ensure wide band-width of stable digital data. That means this DAC can operate in three modes. A) 1541/1541a + re-clock+ DF, B) 1541/1541a + re-clock, C) 1541/1541a NOS mode! Why we had three modes, changing sound quality in changing different in operatio mode of DAC will large & cheaper than change any cable or amps!
>>>>>>2a, Full balance same as simple kit use one pc of digital receiver PCB.+ 0pc
3. Ultra Fast, Clean & Stable Regulated power supply w/LT chips.
>>>>>>>3a, Full balance same as simple kit use one pc of Ultra Fast, Clean & Stable Regulated power supply w/LT chips.+ 0pc.
4.Belden 2 GHz Digital cable will free to follow with kit.
>>>>>4a,same.
5. Belden Heavy Silver Coated Signal wire will follow with kit.
>>>>>5a, same
6. Two IV & LPF PCB (Full assemble & tested), one will passive & one will active. Use Two Single OP-amp or 4 Single OP-amp. Original follow with kit was Philips 5534.
>>>>>>6a, since this is real full balance version. ( Total need 2 IV+ LPF PCB on every DAC. And Every Full balance DAC will follow with two different of LPF + IV ).+ 2 pcs
So¡K. Simple kit----2 pcs PCB with 2 pcs of philips 5534 only. ( Active & passive IV+LPF).
Full balance kit-----4 pcs with 4 pcs of philips 5534. ( Active & passive IV+LPF).
7. Optional 5687 HV & High Current (Dynamic Cathode follower) kit. (Contain DALE Resistors, 1958s 5687 tube & 6 Aluminum FOIL capacitors. (Output caps suggest use 0.47uf, since I did not advise use 0.47+0.01uf) capacitors. So I will follow with 6 pcs of 0.15uf. (Matched). User can choose 0.15, 0.3, 0.45uf value output caps. Sound texture for parallel several same value caps will more balance! This Optional Tube buffer will provide an Ultra LOW OUTPUT IMPEDANCE (approx 0.9 time of original op-amp output Impedance). I strong suggest use a small box & DIY this High Voltage & High Current Cathode Follower Output stage, although U not need use in DAC, U can use for another audio equipment such as coming digital radio Broadcast after digital change back to analogue. U can use this cathode follower connect for it to increase more analogue sound stage!
>>>>>7a, Same optional for simple kit.
>>About all were only Real Full Balance version will contain<<.
>>>>>>8. Double CPLD chips with programming running to ensure Real Full balance module.( only Real Full Balance version contain ).+ 1 pc
>>>>>9. Source input selection PCB + Panel indicator PCB. ( only Real Full Balance version contain ).+2 pcs
>>>>>10. USB receiver PCB. ( only Real Full Balance version contain, because it must use with Source input selection PCB + Panel indicator PCB. )
total contain 6 pcs of full assemble & test PCBs.
>>>>>>Total contain 13 pcs of full assemble & test PCBs
Price included postage will USD 165.
>>>>>>Price included postage will USD 280.
>>>>>>>But although U bought the simple kit, U can buy remain PCB later & upgrade to Full Balance Version!
Extra Op-amp AD797 or OP-42 ( military grade) USD 20 match pair.
Tube Buffer ( optional ) USD 28.
USD4 for reg.mail parcel post by Hong Kong Post Office For easy tracking!
Photo show was Real Full Balance DAC KIT.
Very interest was use can use dfifferent Op-amp to tunning the sound!( Different brand of Op-amp set up in LPF & IV)
I accept paypal.
pls take a look!
Difference between Real Full balance & Simple version!!!!
Full assemble & test)
1. TDA1541/1541a DAC Board with close match MKP coupling caps, U can choose add one small PCB with 24K GOLD pins can put into top of the 1541/1541a DAC PCB, so DAC will operate in parallel (two 1541/1541a) condition. But U needs to change some value of resistor.
>>>>>>1a. Simple version was use 1 pc of 1541/1541a PCB for two chaanel (stereo), but real full balance need two pcs of PCB & every 1541/1541a ( stereo chip) was handling for one channel + & - data.------- so 1541/1541a DAC PCB +1 pc.
2. CS8412-IS ¡V The best digital receiver, more stable Industrial Grade of CS8412-CS Receiver board. With SAA7220P/B (The best DF for I2S digital Signal) & re-clock module. Use Daburu Nano-Amorphous core with 6N wire pulse transformers to ensure wide band-width of stable digital data. That means this DAC can operate in three modes. A) 1541/1541a + re-clock+ DF, B) 1541/1541a + re-clock, C) 1541/1541a NOS mode! Why we had three modes, changing sound quality in changing different in operatio mode of DAC will large & cheaper than change any cable or amps!
>>>>>>2a, Full balance same as simple kit use one pc of digital receiver PCB.+ 0pc
3. Ultra Fast, Clean & Stable Regulated power supply w/LT chips.
>>>>>>>3a, Full balance same as simple kit use one pc of Ultra Fast, Clean & Stable Regulated power supply w/LT chips.+ 0pc.
4.Belden 2 GHz Digital cable will free to follow with kit.
>>>>>4a,same.
5. Belden Heavy Silver Coated Signal wire will follow with kit.
>>>>>5a, same
6. Two IV & LPF PCB (Full assemble & tested), one will passive & one will active. Use Two Single OP-amp or 4 Single OP-amp. Original follow with kit was Philips 5534.
>>>>>>6a, since this is real full balance version. ( Total need 2 IV+ LPF PCB on every DAC. And Every Full balance DAC will follow with two different of LPF + IV ).+ 2 pcs
So¡K. Simple kit----2 pcs PCB with 2 pcs of philips 5534 only. ( Active & passive IV+LPF).
Full balance kit-----4 pcs with 4 pcs of philips 5534. ( Active & passive IV+LPF).
7. Optional 5687 HV & High Current (Dynamic Cathode follower) kit. (Contain DALE Resistors, 1958s 5687 tube & 6 Aluminum FOIL capacitors. (Output caps suggest use 0.47uf, since I did not advise use 0.47+0.01uf) capacitors. So I will follow with 6 pcs of 0.15uf. (Matched). User can choose 0.15, 0.3, 0.45uf value output caps. Sound texture for parallel several same value caps will more balance! This Optional Tube buffer will provide an Ultra LOW OUTPUT IMPEDANCE (approx 0.9 time of original op-amp output Impedance). I strong suggest use a small box & DIY this High Voltage & High Current Cathode Follower Output stage, although U not need use in DAC, U can use for another audio equipment such as coming digital radio Broadcast after digital change back to analogue. U can use this cathode follower connect for it to increase more analogue sound stage!
>>>>>7a, Same optional for simple kit.
>>About all were only Real Full Balance version will contain<<.
>>>>>>8. Double CPLD chips with programming running to ensure Real Full balance module.( only Real Full Balance version contain ).+ 1 pc
>>>>>9. Source input selection PCB + Panel indicator PCB. ( only Real Full Balance version contain ).+2 pcs
>>>>>10. USB receiver PCB. ( only Real Full Balance version contain, because it must use with Source input selection PCB + Panel indicator PCB. )
total contain 6 pcs of full assemble & test PCBs.
>>>>>>Total contain 13 pcs of full assemble & test PCBs
Price included postage will USD 165.
>>>>>>Price included postage will USD 280.
>>>>>>>But although U bought the simple kit, U can buy remain PCB later & upgrade to Full Balance Version!
Extra Op-amp AD797 or OP-42 ( military grade) USD 20 match pair.
Tube Buffer ( optional ) USD 28.
USD4 for reg.mail parcel post by Hong Kong Post Office For easy tracking!
Photo show was Real Full Balance DAC KIT.
Very interest was use can use dfifferent Op-amp to tunning the sound!( Different brand of Op-amp set up in LPF & IV)
I accept paypal.
pls take a look!
An externally hosted image should be here but it was not working when we last tested it.
photo of simple kit,
pls compare to Real Full balance immediately!
but....... Don't worry, U can upgrade later. Make sure that which version U like, fit & useful for U. I was happy for your support & not like U waste any money for extra PCB that U not useful of U.
If U are single SE ( RCA ) user, U can choose simple kit.
When later U change to balance amp, U can upgrade & email me buy the extra PCB to modify for real full balance version.
thx
thomas
pls compare to Real Full balance immediately!
but....... Don't worry, U can upgrade later. Make sure that which version U like, fit & useful for U. I was happy for your support & not like U waste any money for extra PCB that U not useful of U.
If U are single SE ( RCA ) user, U can choose simple kit.
When later U change to balance amp, U can upgrade & email me buy the extra PCB to modify for real full balance version.
thx
thomas
An externally hosted image should be here but it was not working when we last tested it.
tube-lover said:
Thomas, I am still waiting for some replies from you to my emails, but I will wait. But now there is another question: privately, you told me I need two tensions to operate the simple kit dac: 9V and 15V. Now you talk about "5V and 15V".
Which one of your statements is correct?
Bye
Hi Thomas,
Maybe you can post what kind of transformers are needed. That way we have the options to purchase from you or use our own.
Thanks,
Maybe you can post what kind of transformers are needed. That way we have the options to purchase from you or use our own.
Thanks,
hi Kooka,
sorry for my mistake,
its was 0~9V & 18~0~18V.
Hi pchw & all,
I collect two pcs of Similar type as Blue RS Isolate power transformers for DAC use already.
pri -----0~110 X2.
Sec----0~9 X2
AND
pri -----0~110 X2.
Sec----0~18 X2
All were 20W
It will enough for support simple kit consumption , although later U upgrade to full balance version+ USB, power supply still enough to provide a stable envoirment for dac.!
very resonable price, USD 26 per pair.
probably postage added USD 4 will OK, So added USD 30 will get one pair more of isolate power transformers.
Hope all user will lover it. Photos will post to U tomorrow.
Now is HK time 0300hrs AM.
thx
thomas
sorry for my mistake,
its was 0~9V & 18~0~18V.
Hi pchw & all,
I collect two pcs of Similar type as Blue RS Isolate power transformers for DAC use already.
pri -----0~110 X2.
Sec----0~9 X2
AND
pri -----0~110 X2.
Sec----0~18 X2
All were 20W
It will enough for support simple kit consumption , although later U upgrade to full balance version+ USB, power supply still enough to provide a stable envoirment for dac.!
very resonable price, USD 26 per pair.
probably postage added USD 4 will OK, So added USD 30 will get one pair more of isolate power transformers.
Hope all user will lover it. Photos will post to U tomorrow.
Now is HK time 0300hrs AM.
thx
thomas
tube-lover said:
Hi Thomas.
Have tried to contact you previously, but not heard anything.
I would like to order 3 complete sets of the version above.
(Full balanced version)
Please contact me regarding price incl. shipping.
PS. I have 8 - 10 pcs. 1541a chips lying around, so do not need to buy more of these...
Regards, Hifiasylet (lmittet-att-gmail-dot-com)
Remove all -'s, replace att with @ and dot with .
🙂
ok for one dac !
Hi Thomas ,
i'm ok for one full balanced dac kit with power supply.
let me know how to do (pay pal?), and the final price !
Thanks a lot for this wonderful job !
my mail :
yleflohic@wanadoo.fr
Hi Thomas ,
i'm ok for one full balanced dac kit with power supply.
let me know how to do (pay pal?), and the final price !
Thanks a lot for this wonderful job !
my mail :
yleflohic@wanadoo.fr
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