Cayin RU7: 1-Bit Resistor Network Dongle DAC /Amp
Jun 2, 2023 at 7:03 AM Post #557 of 2,174
Hi, if someone helps me, I wanted to understand a bit how this "all to DSD" technology works:

1) is there a "better" and a "worse" between switching between DSD64-128-256 or is it just a matter of personal taste/synergies/technicalisms?
2) can it also be disabled or the minimum is DSD64, and if it can be disabled what does it bring about the audio quality?
2) is it true that DSD64 approaches RU7 to a R2R and DSD256 to a delta-sigma?
3) the greater use of current going up with the DSD conversion can create problems only with iPhones or is it better to set a low value for all smartphones and use DSD256 only for PC use?
4) Are clicks on some high settings of the "all to DSD" function due to power problems or are there other implications?

Thanks to whoever will answer me.
 
Jun 2, 2023 at 7:04 AM Post #558 of 2,174
Is RU7 available somewhere in EU (except UK)??
 
Jun 2, 2023 at 7:23 AM Post #559 of 2,174
Well, I am using now AKG K612Pro:

General Specifications​

Sensitivity (dB SPL/V @ 1 kHz)101
Rated impedance (Ω)120
Audio frequency bandwidth (Hz)12 - 39500
Maximum input power (mW)200
IMG_3636.jpeg

And I have to crank up the volume all way to 86-88 on single ended. I don’t have a balanced cable nor AKG comes with it. It’s soldered into the driver.
Topping is better amplifying.
How is that headphone? I am thinking to get it too and have it made balanced. 4.4 RU7 balanced will have more then enough power to drive it well.
 
Jun 2, 2023 at 7:31 AM Post #560 of 2,174
Is RU7 available somewhere in EU (except UK)??
The Cayin distributor in Germany does not have it in the list yet...
 
Jun 2, 2023 at 7:31 AM Post #561 of 2,174
How is that headphone? I am thinking to get it too and have it made balanced. 4.4 RU7 balanced will have more then enough power to drive it well.
It’s actually my first AKG, and it sounds pretty airy, and very detailed. It’s excellent for classical/instrumental. I sell mine anyways cause I use only iems these days.
 
Jun 2, 2023 at 9:33 AM Post #564 of 2,174
Jun 2, 2023 at 9:55 AM Post #565 of 2,174
I ordered from Hifigo, but they are not honest about availability. They just said that they will ship asap without telling if they have stock or when they will have stock. Before placing the order, they told me that they will ship after 3 days. I should never blindly trust Chinese websites
Same happened to me
Never again
 
Jun 2, 2023 at 9:55 AM Post #566 of 2,174
To cut the bull's head, as I did for the RU6, I bought it on the Cayin site on Aliexpress... at least I have a direct relationship with the Cayin and the RU7 is available, in fact they have already shipped it.
 
Jun 2, 2023 at 10:07 AM Post #567 of 2,174
To cut the bull's head, as I did for the RU6, I bought it on the Cayin site on Aliexpress... at least I have a direct relationship with the Cayin and the RU7 is available, in fact they have already shipped it.
Yes but if I order from Aliexpress, I have to pay customs fees upfront
 
Jun 2, 2023 at 10:12 AM Post #568 of 2,174
Yes but if I order from Aliexpress, I have to pay customs fees upfront
Just ask to declare 50 euros in value with a message, I did this for the RU6 and I paid 14 euros at customs. 212+14=228 euros for a brand new RU6. :wink:
 
Jun 2, 2023 at 10:12 AM Post #569 of 2,174
I ordered from Hifigo, but they are not honest about availability. They just said that they will ship asap without telling if they have stock or when they will have stock. Before placing the order, they told me that they will ship after 3 days. I should never blindly trust Chinese websites
I feel badly for you that you had a bad experience. I have ordered from Hifigo, Shenzenaudio, and Linsoul many times in the past and never had a bad experience with them. Maybe my expectations are low, though, because I know up front that it will take a while to receive my order - it is not like ordering from Amazon with usually short and accurate delivery times.
 
Jun 2, 2023 at 10:18 AM Post #570 of 2,174
Someone from Cayin can confirm whether Hifigo has stock of RU7?
 

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