DX340 iBasso developed Discret DAC, Easily replaceable batteries, Amp Modules! ***New firmware on 1st page. v1.03 local update. AMP16 NOS Tube amp. Review on the 1st page! 4/6/25

[mattclarke18]

Thanks for the tips. I don't use super gain at the moment, I have the impression that it is not necessary with IEM (NA Sultan). It seems that my adventure with DX340 will be long, pleasant, interesting, educational and full of many trials and tests, eg with new AMP modules. Now I just enjoy music - and I wish that to everyone .

My Maven IIs do not require high gain. Very easy to drive and could use low gain but super gain unleashes the full abilities of the DX340. Just be careful with volume setting and set global max volume so you have no accidents. Low gain you are going through resister network where high/super gain you are hearing everything direct from AMP. @Whitigir you can correct me if I am wrong here.

 

[mattclarke18]

I currently am rocking the FiiO PL50. I've had it since I got XD05 Pro - 12V 3A max.

I have my sights set on a LHY AUDIO LPS80VA PREMIUM Linear Regulated Power Supply 12V 2.5A.
This has 2 outputs 12V 2.5A or 12V 5A max for just one or both combined.
It's ideal for long term usage, especially if another consumer comes. For now it's not a priority…instead PB5 might be )

Do you have links where you got the Fiio and needed plug so it works with AMP15?

 

[mattclarke18]

Would this effectively remove all this hiss and jitter I get with the stock 12V plug provided by iBasso?

I am not the only one that hears this. Paul told me it could be picking up interference from power lines etc. DX340 really needs LPSU

 

[pmichaelro]

Do you have links where you got the Fiio and needed plug so it works with AMP15?

Yes, FiiO I got from a local distributor in Romania, but it's also available on AliEx here:
https://www.aliexpress.com/item/1005004647505397.html

As for the cable, I initially bought a silver plated one - my thought is that it's better than the default supplied one, however the seller doesn't have the smaller jack just the regular 2.1/2.5mm - https://www.aliexpress .com/item/1005005364196957.html + adapter https://www.aliexpress.com/item/1005007102578928.html (straight or L shaped: 5.5x2.5mm to 3.5x1.35mm)

After digging some more I recently found a direct cable from GX16-2pin to 3.5x1.35mm (exactly what we have on AMP15), so no more converters and "pollution":
https://www.aliexpress.com/item/1005007986365305.html (Color: GX16 to 3.5x1.35mm)

So it's up to you, you can grab the right cable which is in the last link and you can also grab the other one which is more commonly used + adapters. This way you're ready for whatever comes up next

 

[DAPpower]

So how powerful of a LPSU would be appropriate for IEM use?
My Campfire Audio Astroliths should have about the same sensitivity of the Annihilator 2023 (which I never heard any hissing before) but I wonder if there would be any hissing if I got a more powerful 80W LPSU as opposed to a 25W or a 50W.

Or does it not work that way?

 

[Whitigir]

The DX320 is nothing compared to DX340. I would be surprised if you even use your DX320s at all. It would be like going from Rolls Royce to a Chevy.

Look who is speaking now . I am glad you have the same impressions that I do. Yes, I agreed lol, for my preferences that it is

 

[Whitigir]

So how powerful of a LPSU would be appropriate for IEM use?
My Campfire Audio Astroliths should have about the same sensitivity of the Annihilator 2023 (which I never heard any hissing before) but I wonder if there would be any hissing if I got a more powerful 80W LPSU as opposed to a 25W or a 50W.

Or does it not work that way?

It isnt the wattage alone. It is about the quality, the ripple noises, the filtering networks ...etc...but we are picking nuances details stuff. Different architectural have different outcomes. Ultimately, cheap, quality, reliability, you can only pick 2

Who knows? Depends on how much desires one want for the 340. Ultimately, as I mentioned, the cheapest LPSU one can have is the Fiio.

 

[mattclarke18]

Look who is speaking now . I am glad you have the same impressions that I do. Yes, I agreed lol, for my preferences that it is

I was afraid it was all hype that you read with every new release at first but with DX340 is not hype but the truth. Yes we both see the DX340 for what it is a true masterpiece! I do not think anything can top it until Ibasso releases D17 based DAP and then my bank account won't be happy Having the DX340 along with the DX360/D17 DAP would be good to have in collection.

 

[mattclarke18]

So how powerful of a LPSU would be appropriate for IEM use?
My Campfire Audio Astroliths should have about the same sensitivity of the Annihilator 2023 (which I never heard any hissing before) but I wonder if there would be any hissing if I got a more powerful 80W LPSU as opposed to a 25W or a 50W.

Or does it not work that way?

Paul just emailed me. As long as it puts on 12V you should be fine. I asked him about what he recommends because I do not want to void my warranty or do damage to DX340. I bought new and paid more so want to enjoy piece of mind with warranty for that extra money. First DAP I have bought brand new.

 

[pmichaelro]

So how powerful of a LPSU would be appropriate for IEM use?
My Campfire Audio Astroliths should have about the same sensitivity of the Annihilator 2023 (which I never heard any hissing before) but I wonder if there would be any hissing if I got a more powerful 80W LPSU as opposed to a 25W or a 50W.

Or does it not work that way?

Paul just emailed me. As long as it puts on 12V you should be fine. I asked him about what he recommends because I do not want to void my warranty or do damage to DX340. I bought new and paid more so want to enjoy piece of mind with warranty for that extra money. First DAP I have bought brand new.

As long as you respect what the provided switch based power supply offer you should be fine.
The switch power supply that comes with DX340 has 12V 1.5A if I recall correctly so...that's the minimum.
If your LPSU can output more that's great, if the device needs it, it will consume it, if not then you have extra head.
Ideally you don't want to be under ever.

 

[Jonanzzy10]

Anyone tried the E3 with DX340? Looking for a “portable” closed back solution.

 

[Whitigir]

Just like Paul said, as long as it is 12V you are fine. Amperage dont matter, the device will consume as much as it needs

 

[quaddac]

Bloom Audio review:

 

[pmichaelro]

Just like Paul said, as long as it is 12V you are fine. Amperage dont matter, the device will consume as much as it needs

I am actually going to contradict you here on this one: it does mater how many AMPs your LPSU can put out...if you don't have enough then you won't be able to properly drive the AMP Card to its full potential of 2W of power...

Bloom Audio review:

Not quite a review but some thoughts and why someone would want a DAP vs dongles etc

 

[StokeNewingtonJohn]

Anyone tried the E3 with DX340? Looking for a “portable” closed back solution.

Good question. I’d be interested in the synergy with the Noire X and PM3 too if anyone can help out there.