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

Jan 8, 2025 at 7:22 PM Post #1,846 of 6,443
Hey folks,

when selecting LO mode (line out to external amp), how come the volume control is still available? And what's the right way to set it?
 
Jan 8, 2025 at 7:25 PM Post #1,847 of 6,443
At least 2 of us gsve had the same problem eith packaging with shipments delivered by DHL from that dealer.

Getting DHL to deal with it is not easy - feels like a deterrent not customer service to me. 🤷🏻‍♂️
I'd say it's more a problem with the Bulgarian Dealer not packing properly. The packaging is a simple "Bubble Wrap Pouch" offering minimal protection. If the dealer's trying to be "Green", he fails at the non detachable bubble wrap.
 
Jan 8, 2025 at 7:26 PM Post #1,848 of 6,443
Hey folks,

when selecting LO mode (line out to external amp), how come the volume control is still available? And what's the right way to set it?
Check thread above...Paul confirmed that LO is actually PreAmp, that means that DAC GAIN + AMP GAIN + VOLUME are all still working.
You have a different volume level per each PO / LO, so just push LO to 100 and leave it there, when you switch it back to PO it will return to previous value set while using PO.
 
Jan 8, 2025 at 7:45 PM Post #1,849 of 6,443
IMG_4736.jpeg
Got mine a little over an hour ago. Listened with the Clara for about 2 min…low gain low dac gain. Barely noticeable hissing which I am thrilled about and the sound? F’n phenomenal. The words I would describe would be 1. Natural 2. Detailed 3. Smooth 4. Great soundstage.
I really don’t believe in the burn in thing but I’m leaving on loop with an album for as long as I can for now and will continue. Love the sound now so it can’t hurt.
It’s so much smoother and less fatiguing then my R8II but with all the detail and soundstage at the same time. Crazy.
 
Jan 8, 2025 at 7:53 PM Post #1,850 of 6,443
Check thread above...Paul confirmed that LO is actually PreAmp, that means that DAC GAIN + AMP GAIN + VOLUME are all still working.
You have a different volume level per each PO / LO, so just push LO to 100 and leave it there, when you switch it back to PO it will return to previous value set while using PO.
So no pure dac mode… no good.
 
Jan 8, 2025 at 8:00 PM Post #1,851 of 6,443

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Jan 8, 2025 at 8:16 PM Post #1,852 of 6,443
So no pure dac mode… no good.
Well, you can set the volume to 100 like I was sayin', DAC to low and AMP to low...or...DAC to high to get the most out of it and AMP to low to not "double amp". That should do the trick - I used it exactly like this today with XD05Pro (LO to AUX IN) and it worked great.
What do you guys think of this PSU?
12v 5A 80w
https://a.aliexpress.com/_mLXOlyb
It's exactly the one I was drooling at LHY AUDIO 80W 80VA...but I got some questions that need answering first.
DC12V @5A (maximum output current); - here I'm assuming it's splitting the current into 2.5A times two, for each port basically, or if only 1 port is in use then it can draw a max of 5A on that port alone. 12V*5A = 60W (so it's not 80W just an FYI, it's actually 80VA and the power factor is 1.33).

I was thinking of getting exactly this one (because of the brand that's well known in terms of quality and build + it also is sold in EU as well officially by HiFi stores, so that should count for something as well - ideally I'd grab it from those stores to also get warranty and have the VAT TAX included rather than having to worry about import and customs - for example Audiophonics also sells it) as well to replace the FiiO PL50 in order to get 2 outputs, otherwise PL50 is a tank and works great if you only need to power a single device at a time, but I wouldn't get another one because of the amount of space 2 units would take.

So if you need 2 outputs or think you're going to need 2 outputs at the same time in the future with a max of 30W each...then it's a go!
Otherwise if you just need one FiiO PL50 does the job great and it has a switch on the back that allows you to pick from 2 different voltages: 12V - 3A or 15V - 2A.
 
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Jan 8, 2025 at 8:19 PM Post #1,853 of 6,443
So no pure dac mode… no good.
What do you mean pure DAC mode ?

If you meant Pure Line Out mode then the dx340 has Pure Line Out

It is just the design of the 1 Bit DAC is unique and unconventional. That is in house by Ibasso alone.

Because it is In house self developed, for all we know, the DAC by itself coming off from 1 bit array, could be very low line voltage. Because of this very low line voltage, the Preamp gains will be needed. The Amp Gains on the 340 is PreAmp gain.

Line level gain has nothing to factor whether or not it is true line out. True line out is bypassing amplification process.

Other DAC or DAP already have high voltage level DAC line. Again, this is based on the architect of the DAC itself.

The 340 has very low LO voltage

2Vrms Max and or 1Vrms Max. That is with preamp gain. That further solidify my take that the voltage coming off the DAC itself is very low
Screenshot_20250108_202133_Chrome.jpg
 
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Jan 8, 2025 at 8:23 PM Post #1,854 of 6,443
What do you mean pure DAC mode ?

If you meant Pure Line Out mode then the dx340 has Pure Line Out

It is just the design of the 1 Bit DAC is unique and unconventional. That is in house by Ibasso alone.

Because it is In house self developed, for all we know, the DAC by itself coming off from 1 bit array, could be very low line voltage. Because of this very low line voltage, the Preamp gains will be needed. The Amp Gains on the 340 is PreAmp gain.

Line level gain has nothing to factor whether or not it is true line out. True line out is bypassing amplification process.

Other DAC or DAP already have high voltage level DAC line. Again, this is based on the architect of the DAC itself.
True that! And if the HIGH GAIN on the PreAmp is not enough...then you can also use the 12V DC to add some extra Voltage on top :thumbsup:
 
Jan 8, 2025 at 8:26 PM Post #1,855 of 6,443
True that! And if the HIGH GAIN on the PreAmp is not enough...then you can also use the 12V DC to add some extra Voltage on top :thumbsup:
I actually adore the Preamp gains. Because doing this, means cleaner DAC signals, and with different Preamp architectual, it will have a slight affects on the sound itself.

This will bring even more differences between Amp modules

A proper Desktop system as I knew it back in the analog time was

Source/Preamp/Power amp

Because the later DAC chips are all designed to pour out high line voltages. That eliminates the need for a proper Preamp on modern systems
 
Jan 8, 2025 at 9:09 PM Post #1,856 of 6,443
Well, you can set the volume to 100 like I was sayin', DAC to low and AMP to low...or...DAC to high to get the most out of it and AMP to low to not "double amp". That should do the trick - I used it exactly like this today with XD05Pro (LO to AUX IN) and it worked great.

It's exactly the one I was drooling at LHY AUDIO 80W 80VA...but I got some questions that need answering first.
DC12V @5A (maximum output current); - here I'm assuming it's splitting the current into 2.5A times two, for each port basically, or if only 1 port is in use then it can draw a max of 5A on that port alone. 12V*5A = 60W (so it's not 80W just an FYI, it's actually 80VA and the power factor is 1.33).

I was thinking of getting exactly this one (because of the brand that's well known in terms of quality and build + it also is sold in EU as well officially by HiFi stores, so that should count for something as well - ideally I'd grab it from those stores to also get warranty and have the VAT TAX included rather than having to worry about import and customs - for example Audiophonics also sells it) as well to replace the FiiO PL50 in order to get 2 outputs, otherwise PL50 is a tank and works great if you only need to power a single device at a time, but I wouldn't get another one because of the amount of space 2 units would take.

So if you need 2 outputs or think you're going to need 2 outputs at the same time in the future with a max of 30W each...then it's a go!
Otherwise if you just need one FiiO PL50 does the job great and it has a switch on the back that allows you to pick from 2 different voltages: 12V - 3A or 15V - 2A.
I will try and ask store sometimes it's hard to get a proper English answer.

Update: store is saying output is fixed across both outputs and thier high power will output 12v 5A just using a single output. Only thing else you need would be a 2.5mm female to USBC adapter.

I also asked Kaei Designs about a output cable for my PSU2 it outputs 12V 3A ? That's should also work ?
 
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Jan 8, 2025 at 9:12 PM Post #1,857 of 6,443
I will try and ask store sometimes it's hard to get a proper English answer.
No worries, I already asked for some confirmations from Audiophonics on the very same product. They listed a copy/paste specification which is "broken" because it says 50VA and the title says 80VA and also 80W but the math on the back of the unit doesn't do it justice (12V-5A)...so you cannot have both at the same time, obviously :))
Will post an update once I get one, I've been waiting on one for the past couple of days but nothing as of yet.
 
Jan 8, 2025 at 9:47 PM Post #1,858 of 6,443
What do you mean pure DAC mode ?

If you meant Pure Line Out mode then the dx340 has Pure Line Out

It is just the design of the 1 Bit DAC is unique and unconventional. That is in house by Ibasso alone.

Because it is In house self developed, for all we know, the DAC by itself coming off from 1 bit array, could be very low line voltage. Because of this very low line voltage, the Preamp gains will be needed. The Amp Gains on the 340 is PreAmp gain.

Line level gain has nothing to factor whether or not it is true line out. True line out is bypassing amplification process.

Other DAC or DAP already have high voltage level DAC line. Again, this is based on the architect of the DAC itself.

The 340 has very low LO voltage

2Vrms Max and or 1Vrms Max. That is with preamp gain. That further solidify my take that the voltage coming off the DAC itself is very low
Screenshot_20250108_202133_Chrome.jpg
So it's variable line out voltage and not "volume control"?

Otherwise plugging it into an external amp like the PB5 (really an external integrated amp) would have double preamping....
 
Jan 8, 2025 at 9:53 PM Post #1,859 of 6,443
No worries, I already asked for some confirmations from Audiophonics on the very same product. They listed a copy/paste specification which is "broken" because it says 50VA and the title says 80VA and also 80W but the math on the back of the unit doesn't do it justice (12V-5A)...so you cannot have both at the same time, obviously :))
Will post an update once I get one, I've been waiting on one for the past couple of days but nothing as of yet.
Found a version on AliExpress with free shipping to Canada on the premium version.

https://a.aliexpress.com/_mPwZnxv

Store has a good rating as well.

Anyone have a lead for a quality 2.5mm to USB C adapter?
 
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