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From my own investigations, handling of the master clock is a main concern when integrating the Soekris DAM1021 in this context. The Soekris board can output a master clock signal of either 45.1584 MHz or 49.152 MHz. Further there's an I2S MCLK OUT pin for the master clock output. Given this...

Hi audio enthusiasts! I'm embarking on a personal project to build a 4-channel DAC using two Soekris dam 1021 boards. This is more of a personal endeavor to explore DIY audio rather than a quest for superior sound. I'd love some advice and insights from those who have experience with similar...

I agree that pre-ringing can be difficult to hear, but in fact none or really slow filters is they only way to remove or minimize pre-ringing as it is caused by the low-pass filter to band-limit the signal. I am curious, how do you define a correctly band-limited signal?

This is simply not correct to state that ringing does not manifest itself in any normal audio signal. The Dac does not differ between audio signals and sinus waves. A lot of people here reference to Archimago and he shows it in this test...

There is some old myths here. ALAC has been open source under the Apache License version 2.0 on October 27, 2011, nor does it use any DRM scheme.

SMSL front-/techsupport won't help him, since SU-9, SU-9n, SU-10 and what products are shenzhenaudio exclusive. Why no one told that? They are weaseling themselves out by pointing toward shenzhenaudio and shrugging with their shoulders. And if one is out of 1/2 years warranty period...

I have read this a couple of times trying to understand what you mean. I think I agree with a lot of what you say, but it seems to me that you are mixing minimum phase with linear phase without phrasing specific what you mean, and just refer to it as phase. In the first section I think you are...

You are right that phase is a component of frequency, but it is also a component of time. Since phase shift is increasing with time, it is impossible to only have a phase rotation problem (as you state) and not a time problem as well.

Thank you for a very interesting thread! I have also built a few fulltone speakers, and your approach and findings is aligned with mine. I find a fulltone using DSP has a superior sound compared to conventional passive speakers. I do not think most people understand how much a passive crossover...

Are you sure that this is an OLED display and not a normal LCD display? Does it have a manufacturer's name and if so, what does it say?

The 48v model is out of stock on Amazon and AliExpress. It is still available on Fosi's own store, but with a change in price range, from $105 to $128 (without applying any coupons): I am about to purchase it, but I am not really sure if I should! Do y'all think that at this price this is...

I know that the thread is about single drivers, but for me, the biggest advantage for single drivers is that it allows for really low crossover points (200-300hz) where the ear is not sensitive. You can then have a two-way system where the single driver play from 200-20.000hz, this is known as a...

This is a very interesting observation, and it correlates somewhat with my experience. I have both a set of two-way speakers and a set of single-drive speakers in a bad room. I experience much less listening fatigue when listening to the single driver speaker. Please note that this is my own...

I have a pair of Seas fulltone speakers, and the cost/performance ratio is really good. I am using CamillaDSP to equalise them which is necessary to balance the speakers and achieve a nice looking frequency plot. The advantages with fulltone speakers in my opinion are: -They allow for a very...

Thank you for sharing this, and for the effort of producing a good test! A couple of things I found interesting : -Speakers were difficult to separate from each other -Even with a fairly good frequency response, "They all sound terrible" ( comment at the end ) I know that there are many...

Not sure if you understood my comment. My comment was concerning Class D and that you can not compare the slew rate with other topologies. The slew rate in class D amplifiers is limited to the filter. As others in this thread has cited Bruno Putsey I will do the same: Slew rate does not have...

Thank you for a very interesting and valuable work! I have read this and the great articles from benchmarkmedia to better understand the problem with intersample overs. @John_Siau at your webpage (in Q&A section) you are addressing the problem with intersampling overs by not recommending using...

Yes, I agree that we should expect engineered solutions as you say. However, since this is a discussion on class D amplifiers, I think your comment can be a bit confusing. The concept of slew rate does not make sense for class D amplifiers ( or even for modern linear audio amplifiers at all.)...

Not necessary, IMD is distinct from harmonic distortion in that the stimulus signal is different. The same nonlinear system will produce both total harmonic distortion (with a solitary sine wave input) and IMD (with more complex tones).

Interesting point about intermodulation distortion, as intermodulation distortion is a much more audible concern than many other types of distortion ( ref klipch distortion test earlier this thread). I would also guess that intermodulation distortion is very difficult to measure properly using...