DX340 iBasso developed Discret DAC, Easily replaceable batteries, Amp Modules! ***New firmware on 1st page. v1.04 local update. ***

[pmichaelro]

I did not meant that 12v USB-C PSU, but that one below Romi built for my BX2 Pro 18 months ago.

Gotcha! Then please use the correct wording and call it LPSU (linear power supply unit) please
This way I know we speak the same language and I'm not missing on anything that's more compact/performant/portable
You're referring to this one: https://www.romiaudio.co.uk/zh/product-page/bx-2pro-class-a-linear-power-supply

 

[Whitigir]

One more thing...and it's a BIG one!

I've "cracked" down and got myself a brand new iBasso PB5 Osprey after all.
I was waiting on response on a classifieds...but I also shot up an email to info@audioheaven.eu since I saw they had the best price on the PB5 over in their eBay listing.
I was curious if I can get a better deal by buying it directly from their store (direct invoicing) vs eBay (have their own taxes etc)...
Marek was incredibly helpful and open, considering I actually emailed him during the weekend (Saturday) and he even offered me a better deal.
I might've ended up with a D16+PB5 combo for an even better price but since I already got the DX340 (which might be D16 v2 on steroids), it didn't made sense, so I just went for the PB5 which is currently on its way to me

Audioheaven are going to be relaunching their web store next month as far as I understood, so looking forward to that.
I also learned that they are exclusive distributors for many audio brands in Poland, including iBasso for more than 10 years now. They have been mainly focusing on serving their dealers with local stores vs retail which are more in the background, but they'll be pushing their European platform up in production next month.

I want to gives thanks to @voja for giving Audioheaven a thumbs up, I also stumbled upon their website while researching for dealers of iBasso (and any other audio gear) in Europe, but wasn't yet decided to PTT

And last but not least, huge thanks to Marek for being such an upstanding guy and providing great customer service and care
P.S. Also thanks for the great deal on the PB5, which was and still is in stock if anyone wants to grab one to pair it with our beloved DX340
P.S.S. FYI, they're expecting a 4 batch of DX340s coming in about 2-3 weeks

---

One more thing...who did actually went through with rooting their DX340 and applying any optimisations...any feedback so far?
Thinking about tinkering myself as well, but mainly worried about being able to do future firmware updates as they are built and delivered.

Seriously, grab that D16. It has a lot of potentials you wont regret it. Especially with a sweet combo discount my friend

I use my D16 whenever I can, and 340 as the all in one portable on the go when I am lazy stacking up

Now, I see a proper LPSU. That is a good price, especially when it is of proper design and custom build with quality parts. I built my sigma 11 , parts and builds are about higher than that already.

 

[F700]

Gotcha! Then please use the correct wording and call it LPSU (linear power supply unit) please
This way I know we speak the same language and I'm not missing on anything that's more compact/performant/portable
You're referring to this one: https://www.romiaudio.co.uk/zh/product-page/bx-2pro-class-a-linear-power-supply

I used the correct wording by mentioning the « desktop » PSU I will use with the DX340 and not the LPSU. My Romi LPSU will be produced just after the Chinese holidays. Happy to report synergy with both Romi devices in due time.

 

[pmichaelro]

Seriously, grab that D16. It has a lot of potentials you wont regret it. Especially with a sweet combo discount my friend

I use my D16 whenever I can, and 340 as the all in one portable on the go when I am lazy stacking up

Now, I see a proper LPSU. That is a good price, especially when it is of proper design and custom build with quality parts. I built my sigma 11 , parts and builds are about higher than that already.

Too late for that now, and somehow thank god, since I've pretty much burned money I don't yet have )
Need to recoup some in order to bounce back from negative balance to positive again and I've decided to cleanup some of the gear that's not being used that much, if at all.

I used the correct wording by mentioning the « desktop » PSU I will use with the DX340 and not the LPSU. My Romi LPSU will be produced just after the Chinese holidays. Happy to report synergy with both Romi devices in due time.

What I mean by "correct" (form my perspective) is that I was expecting to see a L in front of the PSU to be able to tell the 2 apart.
One would be switching PSU and other would be linear PSU.
"Desktop" doesn't make any difference from my perspective, it just means a box that outputs power and sits on the desk
Need to investigate what goes into that Romi LPSU...saw the Denon recouped and reused capacitors but...

Official listed specs:
BX-2Pro external power supply.
Dual 12V Class A Linear supply Lemo connector
Vintage Denon capacitors
OFC Toroidal Transformer
Class A Dual parallel linear transistor regulator
5N copper connect cable ( supply to BX-2pro)

Class A DC idle current 0.3A
Power consumption 4.4W
Maximum output current 500mA
500mA slow blow fuse protect
220-240V operation voltage ( 110V can be ordered)

The output power current seems way to small...just 500mA? That won't suffice anything on my end, even the DX340 takes in 1.5A (from the switching PSU provided in the package)

Even FiiO PL50 has full specs and pictures of the build shared and it costs way less than the Romi LPSU...so yeah, I'm expecting more when it costs more, like so much more

 

[F700]

Too late for that now, and somehow thank god, since I've pretty much burned money I don't yet have )
Need to recoup some in order to bounce back from negative balance to positive again and I've decided to cleanup some of the gear that's not being used that much, if at all.

What I mean by "correct" (form my perspective) is that I was expecting to see a L in front of the PSU to be able to tell the 2 apart.
One would be switching PSU and other would be linear PSU.
"Desktop" doesn't make any difference from my perspective, it just means a box that outputs power and sits on the desk
Need to investigate what goes into that Romi LPSU...saw the Denon recouped and reused capacitors but...

Official listed specs:
BX-2Pro external power supply.
Dual 12V Class A Linear supply Lemo connector
Vintage Denon capacitors
OFC Toroidal Transformer
Class A Dual parallel linear transistor regulator
5N copper connect cable ( supply to BX-2pro)

Class A DC idle current 0.3A
Power consumption 4.4W
Maximum output current 500mA
500mA slow blow fuse protect
220-240V operation voltage ( 110V can be ordered)

The output power current seems way to small...just 500mA? That won't suffice anything on my end, even the DX340 takes in 1.5A (from the switching PSU provided in the package)

Even FiiO PL50 has full specs and pictures of the build shared and it costs way less than the Romi LPSU...so yeah, I'm expecting more when it costs more, like so much more

The PSU powers the BX2 Pro external amp, which itself is connected to the DX340.

https://www.romiaudio.co.uk/zh/product-page/bx-2-pro

 

[pmichaelro]

The PSU powers the BX2 Pro external amp, which itself is connected to the DX340.

https://www.romiaudio.co.uk/zh/product-page/bx-2-pro

Makes sense...I was under the impression that you're buying the Romi LPSU to power the AMP15 12V DC Input...thus it wouldn't output sufficient current for that purpose.

Not sure how much power the BX-2 Pro actually consumes since it seems to output a lot of power (5.9W@32ohms)...so 0.5A still look too little from my POV.
Just as a food for thought I'd rather get a LPSU that can output a minimum of 2A if not more to be on the safe side, and more future proof, maybe I will end up using it to power something else in the future and thus keep it.

I originally bought the FiiO PL50 to power the xDuoo XD05 Pro...now I'm powering AMP15. It has more than enough power to power both and even something more power hungry so I should be good to keep reusing it, rather than have to go and buy yet another LPSU because of slight different current requirements, same Voltage though.

I'm thinking from the perfective of bang for buck and reusability

 

[Whitigir]

For people who wonder what techs and specs Sigma 11 has. You can check out official AMB site

You will also see professional builders recommended as well. Though I built DIY myself because I can use whatever audiophipe components I want and with my own trusted skills

It depends on the components but the key points are. Zero current limit with high current MOSFET

Tech highlight

Incomming updates with a desired battery bank from @mattclarke18 as well. It will be a project that most of us can do to further benefiting the 340 and also remaining portable

 

[pmichaelro]

For people who wonder what techs and specs Sigma 11 has. You can check out official AMB site

You will also see professional builders recommended as well. Though I built DIY myself because I can use whatever audiophipe components I want and with my own trusted skills

It depends on the components but the key points are. Zero current limit with high current MOSFET

Tech highlight

Incomming updates with a desired battery bank from @mattclarke18 as well. It will be a project that most of us can do to further benefiting the 340 and also remaining portable

Damn! New paper to research...I'm waiting on some adapter/cables to see if I can use my existing power banks with the AMP15 and trigger the Super Gain that way.
It's definitely the more accessible method for everyone included.
Probably I won't be that much interested in building my own (even though the though is enticing) because of the incoming PB5 which as we already have covered it...it makes sense to PTT on the PB5 instead of going for a battery based LPSU of sorts

Need to see how the PB5 is going to change the sound for me and see if I want it to sound like that always or only for some use cases rather than all.

 

[Whitigir]

Damn! New paper to research...I'm waiting on some adapter/cables to see if I can use my existing power banks with the AMP15 and trigger the Super Gain that way.
It's definitely the more accessible method for everyone included.
Probably I won't be that much interested in building my own (even though the though is enticing) because of the incoming PB5 which as we already have covered it...it makes sense to PTT on the PB5 instead of going for a battery based LPSU of sorts

Need to see how the PB5 is going to change the sound for me and see if I want it to sound like that always or only for some use cases rather than all.

Yes, amp15 can be triggered with Powerbank USB C to 12V adapter. Just need the correct DC plugs. It sounds similar to the walwart, wxcept you are not tethered to the wall. But you will be stacking up anyways

IMO, portable quality = have to stack = PB5 as an addition that also give tubes timbres. Just expensive

The best out of 340 = tethered LPSU

But I also understand the desires for cheaper battery bank that can benefit 340 and DC in. I dont need it, but I will spend on it and publish the guide just for us all to enjoy

 

[pmichaelro]

Yes, amp15 can be triggered with Powerbank USB C to 12V adapter. Just need the correct DC plugs. It sounds similar to the walwart, wxcept you are not tethered to the wall. But you will be stacking up anyways

Probably if one wants the DX340 + AMP15 signature only then USB-C plug that trigger 12V + power bank is best bet and bang for buck...
Then if one wants to go even furthermore to NuTubes and more power with no extra power source...then PB5 is probably hands down going to be the best at this moment in time.
I have installed the AMP14 and started to burn it in...now I have to "wait" and also listen in the meanwhile to see if I can spot any differences between brand new and burnt in
I'm sort-of expecting the AMP14 to add some of the sauce of PB5...1/2 of it ideally if not at least some and also add the dedicated Line out...then that means that I can just enjoy Tubes on-the-go with DX340+AMP14 alone, and then when I need/want more power and taste, I just link-up the PB5 to the dedicated LO of the AMP14 and of we go!
No extra need for additional 12V DC in to unlock the full LO voltage as is the case with AMP15.

 

[ToneDeafMonk]

I tried all 3 of my Voltme power battery packs none will work with the DC in, Paul told me he has one that works the others don't? Notnsure what the requirements are and the why?

 

[pmichaelro]

I tried all 3 of my Voltme power battery packs none will work with the DC in, Paul told me he has one that works the others don't? Notnsure what the requirements are and the why?

This is because of the way USB-C protocol works. You need the device to tell the battery how much voltage and amp it wants. PD delivery, QC etc
In our case we have on the AMP15 just a DC plug which doesn't do anything intelligent like that, it just takes in 12V and 1.5A.
That means that any power source you want to link it up with must deliver ON ITS OWN 12V and 1.5A...so you need a USB-C cable with a chip in it that can trick the battery into believe that the consumer on the other end always needs 12V
There are such cables/adapters made available on AliEx...posted it a couple of pages back.

Also...you need a power bank that can output 12V on one of its port (I believe it can be PD/QC, not 12V anytime output), it doesn't matter how, but it needs to be able to output 12V and ideally also 1.5A while outputting 12V...thus 18W power output.
There are some power banks (not so often) that have a DC power output port with a DC mother plug...that would also work as long as it output 12V.

Direct link to my post: https://www.head-fi.org/threads/dx3...-page-v1-01-local-update.974099/post-18547911

 

[Whitigir]

I tried all 3 of my Voltme power battery packs none will work with the DC in, Paul told me he has one that works the others don't? Notnsure what the requirements are and the why?

What are the exact link of the packs ? I will take a look

This anker Prime works

 

[mattclarke18]

Get 2nd DX340 today, a day earlier

 

[Whitigir]

Ni-CD as the best 12V battery source for 340 Amps. Make sure you are only using Ni-CD cells , no Li-ion or Ni-Mh or the likes. Explicitly and strictly Ni-CD cells

That green light and DC supergain

Guides here, crimp on style without solder available, all can do