[maira]

https://audio123reviews.com/2019/06/08/ibasso-amp9
How about this?

So its only SE. Why?

 

[ranjitotski]

Only @Paul - iBasso can explain these!

 

[Lurker0]

it says 'Bal' next to some fixture

I believe it is left-right channel level (balance) control.

 

[fzman]

So its only SE. Why?

standard tubes like 6922 or 12ax7 are what are called dual triodes--ie, there are two triodes in each tube. So, you can use one triode per channel, 1/2 of the tube for R, the other 1/2 for L....
Balanced needs two triodes per channel, so, R+, R-, L+ and L-

Korg module is two single triodes - so, either one balanced channel, or single-ended stereo only. Yoou would need two of the modules for balanced stereo.

 

[artpiggo]

Great and clear explanation thank you.

 

[Sound Trooper]

Based on what I’ve read here, Lurker’a add-on brings the temp down quite a bit. Worth a try? You can always roll back if you don’t like it...

Thanks.. I’ll read up on it.

 

[AlexRv]

I've found the challenging UIEMs for DX220. 3.5 SE output is weak to drive them, only balanced 2.5 made the job)

 

[Whitigir]

Balanced and offset trim-pots are for adjusting DC balances and offset from each channel in respect to ground differences. It is a common tuning practices for amplifier. Not sure why it is here, you will need to know what you are doing though (my best guess is that it is there for DIY modders, as modified DX200/220 or even to modify the Amp9, the bias will need readjustment as this is Tubes we are talking about). It is what you would call a Bias adjustment....but I don’t even think rolling tubes are even an options LOL!

Amp9 should only be SE or single Ended configurations only, in order to make balanced viable, you will need another Korg Tube....this is where spaces becomes an issues (not the socket)

 

[mat.1]

JUST GOT THE IBASSO DX 220.
WHAT IS THE PLAYER FOR PLAYING MUSIC FILE IN ANDROID OS, I CANT FIND UAPP IN APK PURE ?

 

[Whitigir]

JUST GOT THE IBASSO DX 220.
WHAT IS THE PLAYER FOR PLAYING MUSIC FILE IN ANDROID OS, I CANT FIND UAPP IN APK PURE ?

Mango Player is stock Dx220 for playing music files

 

[TP1410]

@Paul - iBasso

I noticed on DX220, cpu just running at max ~800mhz.... on DX150 cpu even run at maximum 1.2ghz.
Is it cause lags and slow UI/animation on DX220? If it is correct, please update firmware to fix this.

 

[mat.1]

Mango Player is stock Dx220 for playing music files[/Q
Thanks , I got it.

 

[mattiav]

So its only SE. Why?

Because that would require two NuTubes?

 

[singleended5863]

Because that would require two NuTubes?

As @Whitigir and I mentioned before amp9 needs more space to install 2x nutubes to make an balanced output (4.4 or 2.5).

 

[Gww1]

Have any specs been announced yet for the AMP9? Output impedance in particular.