DX320MAX Ti The musical event worth the wait. ROHM X 4. !! NEW Firmware: 2.03 !!

May 29, 2023 at 5:01 PM Post #603 of 1,736
Good thing that Ibasso allow firmwares roll back freely. I rather listen to the DAC chips being optimized without the gain adjustments :) but that is because I use full-size
I doubt they're talking about literally hardcoding a gain adjustment, but rather instead they're giving you the option.
 
May 29, 2023 at 9:58 PM Post #604 of 1,736
I doubt they're talking about literally hardcoding a gain adjustment, but rather instead they're giving you the option.
The DAC chip don’t work that way, unfortunately. There are a lot of stuff going on behind all this. But let me give you an Example

if you turned on EQ feature, your everything will be reduced, compressed, under a different process. One of them is a reduce in volume. But I will avoid opening a can of worm here. Just speaking on technicality, I am glad that there is an original firmware which optimize the DAC chips, and the future firmwares to be utilizing digital gains.
 
May 30, 2023 at 1:49 AM Post #605 of 1,736
Welcome to the forum! Sounds like you have plenty of experience with musical instruments. It's great to hear that you've had good experiences with the DX220 MAX and 300MAX. What other instruments do you enjoy playing or listening to?
Thank you, i have been here for a few years , but thanks the same, i could welcome you, the rest of your question has no sense, is the same thing saying that to like and enjoy cars you have to be a mecanic or a car builder, i like music, if is strings or drums or only vocal , that dont matters to me , i like it if its good to me, and if the device suits me, about the 220max and 300max, great devices but did not enjoy it 100% , the Ibasso tunning is more on neutral, thats not me favorite one ,I know that in this thread accepting any type of criticism is not easy, the hype is very high,and them the deception can be to in some cases, but we have to be able to fit in, as in other devices threads
 
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May 30, 2023 at 5:00 AM Post #606 of 1,736
The DAC chip don’t work that way, unfortunately. There are a lot of stuff going on behind all this. But let me give you an Example

if you turned on EQ feature, your everything will be reduced, compressed, under a different process. One of them is a reduce in volume. But I will avoid opening a can of worm here. Just speaking on technicality, I am glad that there is an original firmware which optimize the DAC chips, and the future firmwares to be utilizing digital gains.
You're arguing that giving us the option to reduce gain digitally will cause a permanent reduction in quality. I don't buy it. Bring evidence for this argument.
 
May 30, 2023 at 9:07 AM Post #607 of 1,736
You're arguing that giving us the option to reduce gain digitally will cause a permanent reduction in quality. I don't buy it. Bring evidence for this argument.

In programming, there is always the discussion of SRC Reconstruction algorithms not being lossless, and affecting quality. This is a reason why all DAC AMP and DAP vendors want to bypass the digital SRC volume present in the Android OS system.

The DAC chip don’t work that way, unfortunately. There are a lot of stuff going on behind all this. But let me give you an Example

if you turned on EQ feature, your everything will be reduced, compressed, under a different process. One of them is a reduce in volume. But I will avoid opening a can of worm here. Just speaking on technicality, I am glad that there is an original firmware which optimize the DAC chips, and the future firmwares to be utilizing digital gains.


I think that, if there is a gain setting that is allowed by the DAC, even if enabled at the firmware level it won't affect the sound. There's a big difference between the firmware being able to process the audio data precisely vs Android superficial SRC volume processing, I wouldn't worry about it affect the sonic quality if iBasso handles it.

About EQ, it is true, some EQ implementations will make the sound worse just by enabled it in the settings, and it depends a lot on the EQ you're currently using whether it affects the sonic quality or not.

I really think that with the level of engineering iBasso gave to DX320 MAX TI they wouldn't implement something that would cause the sound to be worse
 
May 30, 2023 at 10:42 AM Post #608 of 1,736
The DAC , all DAC, has the ability to “scale pcm” data before conversions. This level of scaling will then be applied toward the own chip DSP processing toward the conversions. There are different amplitudes for different pulses regarding differences between variations of the PCM encodings. Under a specific set of circumstances, the algorithms will have overshoots over the full scale values, which increase noises and clipping during the processing. The chips will then have to process harder and further to filter them out.

However, all of those mentioned above are all within the scope of the DAC chips itself. The engineers don’t need to do anything, just follow the data sheets and engineering white sheets. That is the reason why only PCM can be using Equalizer, because it allows a certain amplitudes to be adjustable and or attenuated.

Now, it is the opposite of that in order to lock the DAC chips, which is what we called an “optimized conversions”. The engineers “have to measures under a specific circumstances, instances” which are outlined by the DAC manufacturers and together with the experiences from the DAP makers itself. On top of that, the hardware of low pass filters will have to be measured afterward as well.

I am not saying that Ibasso team did all that. I just think that they did. Because those were the only reason to implement “analog gains” knob, and omitting the digital gain features. Logically, when analog gains are in place together with analog stepped attenuations, the digital sections are optimized. Those are how desktop systems are. Hence after the DAC, there will be a preamp, which is a mean to adjust the loudness by analog signals. Then it will come the power amplifier later.

I really don’t want to dissect this aspect of the game, because it involves a lot of different things, and where people would keep on asking for “proofs” etc… that means they are not interested, but rather just want to debate baselessly. Because for such an in-depth matters, they can research for themselves.

Then again, this is the reason why I love Ibasso, they allow firmware rollback. If you don’t like the new one, roll it back. How many companies would even allow this ? That is what I really meant
 
May 30, 2023 at 6:19 PM Post #611 of 1,736
Well, one week ago, I decided to read this thread, having no idea that I needed one. Then today, this showed up...
 

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