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Singxer SDA-2 Advanced Version DAC/Amp
01 / 07
Singxer SDA-2 Advanced Version DAC/Amp
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186 requests
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3 Sold
Product Description
New from Singxer, the SDA-2 Advanced Version delivers certified Hi-Fi audio with cutting-edge circuitry and premium components. Equipped with a Crystek CCHD-575 femtosecond crystal oscillator USB clock, the SDA-2 Advanced Version comes equipped with XMOS's latest xCORE-200 series chip for USB audio Read More
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keyboard_arrow_downChessman47
117
Dec 28, 2020
I bought the "advanced" model from Drop for $612 + $50 tax. I have DSD music files on my Windows PC, but I think it converts them to PCM for USB output. The Singxer user guide says it can play DSD, but I can't confirm that based on my use. My OPPO Blu-ray player plays SACDs, but does not output DSD via coax or optical outs.
chichaz
8
Dec 28, 2020
Chessman47"does not output DSD via coax or optical outs"
DSD cannot be output via these formats, as they're limited to 24 bit / 192kHz resolution. The analog outputs should put out DSD, however, if it's set to in the menus (I have an OPPO too, though I use it mostly for for SACD ripping).
If you're using foobar2000, there's a way to 'trick' the DAC into receiving pure DSD audio or DSD via DoP, both from the USB connector.
I saw the reviews on Head-fi mentioned below so I'm all set, but thanks for replying.
Rowdy2026
805
Oct 1, 2020
How can you argue with someone using an Apple usb-c dongle as their reference?
verifonix
1181
Oct 1, 2020
Rowdy2026Lol I was just saying if one buys an amp, you could perfectly use the $9 apple usb-c dac until you get a proper one
it's not THAT bad
(Edited)
AmJosh
128
Sep 24, 2020
I don’t get, how can one call AKM 4497 as flagship when 4499 is out for over a year and Drop has sold DACs based on it. Isn’t it misleading information for someone not familiar with this?
ElectronicVices
2940
Sep 24, 2020
AmJoshProduct descriptions are typically created by the manufacturer prior to release, when this was released it was in fact the flagship DAC chip from Asahi Kasei. Since then the 4499EQ has come out, companies don't go back and provide "updated" product descriptions.
Rowdy2026
805
Oct 1, 2020
AmJoshA unit can still be a flagship based on the series it was released with.
SureSh0t
43
Sep 24, 2020
https://www.aliexpress.com/item/33001512114.html
This listing explains what is going on inside better. And has more measurements.
The two highlights are the use of FPGA for normal filtering or bypassing the AKM chip for no oversampling. And the use of an optocoupler to transmit the USB input by light internally so USB noise doesn't affect the rest of the circuit.
The lack of shielding around the toroid transformer bothers me but otherwise is a nice design that lets you choose between Delta/Sigma and FPGA conversion.
dpump
39
Sep 24, 2020
Need a picture of the entire circuit board to see what kind if volume control is being used.
Kulpa
54
Jan 2, 2021
It must be digital, otherwise it would not be possible to increase the volume by 0.5 dB in a certain range.
It is not known exactly which potentiometer was used.
It doesn't matter, it does what it is supposed to do.
I mainly use the remote control to protect the potentiometer.😊
Qwervy
464
Jan 2, 2021
KulpaI'm guessing he wants to know if its hardware digital or software digital then, and if its hardware or software, what kind of chip is being used and in what circuit configuration it is as to preserve signal dynamic range and integrity without introducing capacitance or inductance etc.
Edit: Also, I'm guessing its a rotary encoder not a potentiometer.
(Edited)
Pharmaboy
60
Sep 24, 2020
There's a lot more information at the link below, more than in Drop's description:
https://www.head-fi.org/showcase/singxer-sda-2.24000/reviews#:~:text=It%20features%20a%204%2Dway,used%20as%20a%20pre%2Damp.&text=The%20headphone%20output%20has%20lots,you%20can%20throw%20at%20it.
DanFan
7
Sep 24, 2020
Someone please explain to me what that spike at 1K means on the spectrum analysis graph. Thanks.
SureSh0t
43
Sep 24, 2020
It gives you a very rough idea of where the noise floor is in relation to other amplifiers or DACs tested the same way and how many harmonics to expect at what level. Frankly I would prefer a standard wide band pink noise track be used to show actual performance but for various practical reasons this is what we're stuck with. Multitone FFT looks like this https://www.audiosciencereview.com/forum/index.php?attachments/motu-m4-4-channel-audio-interface-dac-multitone-audio-measurements-png.81061/
steedamike
10
Sep 24, 2020
At this price, I'd also look at https://www.schiit.com/products/lyr-1 . The Schiit has about 2x the output power.
SureSh0t
43
Sep 24, 2020
steedamikeThe Lyr 1 is SE only. This DAC is better, audibly so is debatable. Not everyone wants tube amplification. Also you can only stack on top. And not everyone wants the look of Schiit.
(Edited)
ElectronicVices
2940
Sep 24, 2020
SureSh0tThat resolves to the new Lyr 3, Schiit sucks at updating the URLs... the rag 2 address still says rag1 in the URL.
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