Can this be good first tube amplifier?

Hi shkong78,
   I have the ML-13s paired with Tekton Perfect SET speakers.  

  For a budget tube system, I don't think you can do much better.  I did roll the pre-amp tubes with NOS Mullards and the system sounds much better than original tubes.  

   The Tektons are super efficient and for a low wattage system, it can put out the bass. 

-Joe
here is a review that pushed me into purchasing:  https://wallofsound.ca/audioreviews/amplification/review-yaqin-mc13s-stereo-integrated-amplifier/

As a first tube amp , I'd suggest a line level triode tube preamp . They work wonderfully well with both tube and solid state power amps, provided the input impedance is not too low . They tame digital sources without the higher heat factor of power output tubes . Some are even available as kits you can build yourself and learn something as well .

Man this turned out to be a Rohrshach (sp) test. Everybody coming at this from their own mindset on cheap and not so cheap amps, parts and all.  In general agree that the transformers play a huge role.  Also many modern tube amps do not aim to sound like the old ones and are leaner cleaner and brighter.  That is not the goal alone however a modern tube amp has to create fabulous sound stage.
I know nothing about Yaquin except the seem to have sold a ton of 6SN7 buffers a few years ago.

Thanks a lot plga and biketech60 for sharing your experience of using Yaqin ML-13s.

Of course it may be just good for beginner.  But value for performance could be high.

I am very happy with Line Magnetic 508 SET amplifier which I got this year.

Now Chinese starts to make nice products at decent price.

It is good for the consumers who have more choices.

Don’t listen to all the elites!  As a first tube experience, Yaqin is great.  I had a tube line stage preamp and it was really fun to roll with it.  I’d suggest you start with just a preamp as then you don’t have the variable of the power stage tubes which are also generally more expensive.  Beware - you’ll have a lot more tube gear and a big box of tubes if you get into this!