I thought multi chip NOS DACs were obsolete but here's a new one.
I can't find any reviews except in Russian, Google Translate isn't clear.
Looks like plenty of room for modding. You reckon it's got any potential?
I'm still looking for the chinese bargan.
New Release Finished L1543DAC 16X Sixteen Parallel TDA1543 HiFi Audio DAC
I can't find any reviews except in Russian, Google Translate isn't clear.
An externally hosted image should be here but it was not working when we last tested it.
Looks like plenty of room for modding. You reckon it's got any potential?
I'm still looking for the chinese bargan.
New Release Finished L1543DAC 16X Sixteen Parallel TDA1543 HiFi Audio DAC
Certainly has potential. A Border Patrol DAC using the same chip got a rave review here : https://parttimeaudiophile.com/2017...usb-digital-to-analogue-converter-se-version/
First mod I'd do - remove resistor to pin7s and install an external current source. The internal one is lousy.
First mod I'd do - remove resistor to pin7s and install an external current source. The internal one is lousy.
The Border Patrol gets by with only one 1543... and a tube.
Those cheap transformers in the 16 chip board makes you wonder about the rest of the componnts.
In this case 'cheap' just happens to be eminently suitable for the application. Toroidals and R-core are more expensive but inferior in terms of CM noise rejection. Those cheap EI are split bobbin types with the lowest inter-winding capacitance.
Though it’s simplicity is appealing. Looks like it’s got about 12 parts.
Thanks for the info on split bobbin tranformers!
Thanks for the info on split bobbin tranformers!
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I am also looking at the same DAC and owning SPS DAC3 wonder if this would be any better or even similar?
Hi, I have a good deal of experience with the 1543 and I can say that it works well with pin 7 open. I got the best sound with a balanced arrangement and common-gate stage with 2SK170.
Alexandre, I've got several dongle DACs, 9018, SA9227 and a AK4495SEQ board but I always come back to my Lite AH with 8, 1543s. It's quite an old DAC so I was glad to see a newer version of the multi chip 1543.
Can you offer an opinion just by seeing the pictures?
Thanks, Mack
Hi, it depends on the pictures, sometimes you can tell a lot. But I could not follow that link you posted.
L1543DAC 16X并联TDA1543HiFi发烧解码器 再现TDA1541模拟味道-淘宝网全球站
Its from the same designer (or at least same commercial outfit) which did the 8 * TDA1387 DAC we modded to the heavens a couple of years back so I reckon its definitely worth a punt.
Its from the same designer (or at least same commercial outfit) which did the 8 * TDA1387 DAC we modded to the heavens a couple of years back so I reckon its definitely worth a punt.
I can tell a few things from the picture. It doesn´t seem to use asynchronous USB, which would require two crystal oscillators near the USB chip. But then, for the price...
It seems to use smd resistors in parallel with a film cap for I/V conversion. I would use a carbon non-inductive resistor for warm rounded sonics. With a decent power rating of 2W or so (even though idle dissipation is only 0,2W or so). And remove the film cap.
With 16 parallel dacs at 2.3mA p-p the total current is 36.8mA p-p, with 150 ohms i/v resistor you have slightly over 2Vrms.
Another option is the attached schematic from John (ECDesigns) which can be modified for 16 chips in parallel.
It lacks a low jitter clocking scheme. But what the heck, the transformers and case are almost worth the price?
It seems to use smd resistors in parallel with a film cap for I/V conversion. I would use a carbon non-inductive resistor for warm rounded sonics. With a decent power rating of 2W or so (even though idle dissipation is only 0,2W or so). And remove the film cap.
With 16 parallel dacs at 2.3mA p-p the total current is 36.8mA p-p, with 150 ohms i/v resistor you have slightly over 2Vrms.
Another option is the attached schematic from John (ECDesigns) which can be modified for 16 chips in parallel.
It lacks a low jitter clocking scheme. But what the heck, the transformers and case are almost worth the price?
Attachments
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I think I got it now... The basic version is spdif only. A daughterboard is required for USB input function.
Right - his Taobao page is showing 4 options for USB input, from CM108 up through CM6631A to something capable of DSD.
I picked up one following the purchase of a basic TDA1543 X 10 DAC from Aliexpress. The latter sounds very good to me. The new one arrives today, looking forward to hearing it.
Alexandre, what would the best option of modifying the schematics from #11 to connect paralleled chips? Just by connecting them in parallel but divide R3 and R4 values by number of used chips?
6 years ago I bought from HK ready made board with 8x TDA1543, but it is using a common Vref resistor for all chips, I would like to try it with PIN 7 floating 🙂
6 years ago I bought from HK ready made board with 8x TDA1543, but it is using a common Vref resistor for all chips, I would like to try it with PIN 7 floating 🙂