Driving ability of Khadas Tone2 Pro?

Audio
1

Hi there guys…
just a quick question here…
in my collection most of my iems are somewhere between 10 & 32 Ohms of impedance
is this dac/amp suitable for driving these iems up to their full potential ???
thanks a lot in advance

2

Yep, Tone2 Pro works in two gain modes for both low & high impedance.

To drive the low impedance headphone, you might need to set as low gain mode(default mode), more details will be avaialble on the usermanual.

Good day!

3 Likes
3

Thanks for the info
I suppose Tone2 Pro supports USB C as far as charging goes right??

4

Hello, Yes, as explained in this thread’s original post, Tone2 Pro will have two USB-C ports, one for power…
"Separate USB-C for data & power: Dual USB-C ports for separating data and power, use an optional 5V linear power supply which will take higher priority over USB power".

5

Both USB-C ports can power the Tone2 Pro, the I2S port designed for Lenear Power Supply.

More details available: https://www.khadas.com/tone2pro

Have fun!

6

Really sorry, but i do not understand what you really mean here…
i really need to know if Khadas Tone2Pro is a “power supply independent” dac/amp
i mean…is it using power from another dap(for example Hiby R3/R5 ) or a smartphone using type-c connectivity???
Or is it a rechargeable unit using 5V adaptors???
sorry for bothering you again…
thanks in advance, ALEXANDROS

7

@Alexandros_Acholos the second USB-C port is for stabilised DC, to prevent any noise interference in the audio and maintain signal integrity.

the DAC doesn’t have any battery, it requires power during operation.

8

Both connections below works:

  • Use one USB-C cable for both Power and USB data
  • Use two USB-C Cable, and one for USB data, other one(I2S port) for power

Good day!

9

Thanks Gouwa,
I assume that it draws power from any dap/smartphone which is connected to, and uses that power for operatiion
Am I right?

10

So… the dac draws & uses power from let’s say another dap or smartphone when it’s connected to it, using type c connection???

11

Yep, you are right.

Have fun!

12

Thanks bro… That’s important to me as i am planning to use Khadas with HIBY R3/R5
So… In this case as you suggest power & data use the same USB - C port, correct??
And if I may also ask, the output impedance of 4.4 balanced out on Khadas (2.4 ohm I think) would you think it could be an issue regarding driving sensitive iems there? (16Ohms and lower?)
Thanks in advance, Alexandros