kijanki
Responses from kijanki
| Negative feedback Amp=more faithful reproduction? Edwyun, Yes, we have to realize that when they talk about zero feedback they mean global feedback. Amplifier can have many local feedbacks and they might still call it ZNFB. Why? Because ZNFB became catch phrase and sells amplifiers.You stated the... | |
| Negative feedback Amp=more faithful reproduction? Mapman, the question here is if NFB makes reproduction MORE faithful. Some answered that there is no faithful reproduction, which doesn't answer this question, while others stated they prefer sound of ZNFB which doesn't answer this question either... | |
| Triode mode vs pento mode Atmasphere, there might be some issue since triodes have lower internal anode resistance leading to higher damping factor and perhaps perception of less bass.Pentodes are less sensitive to supply voltage variations meaning that large change in sup... | |
| Negative feedback Amp=more faithful reproduction? Many people like sound with some distortion that makes it more alive (distorted guitar vs clean guitar). My Benchmark DAC1 sounded too clean at first but it doesn't anymore (learned to listen). Many accused DAC1 of sounding sterile. When they comp... | |
| Negative feedback Amp=more faithful reproduction? Dracule1, I glanced over article and it seems to cover pretty much everything. I will read it in detail.Stereophile also conducted experiment with adjustable feedback amplifier and they liked sound at minimum feedback. It doesn't mean that feedbac... | |
| Negative feedback Amp=more faithful reproduction? Negative feedback reduces harmonic and intermodulation distortions, reduces output impedance and widens bandwidth. This can be easily measured. Negative feedback, especially a global one, can introduce Transient Intermodulation Distortion (discove... | |
| Best $4 I ever spent on audio Yes, they use 4562 but very likely lowered rail voltage - nobody sane would risk overvoltage failure in mass production (rail voltage in DAC1 is +/-18V) especially when voltage regulators initial tolerance can make it additional 2x0.5V easily.They... | |
| MP3 vs Hi Res Steve, I don't really like headphones, using them only on vacation etc. Tube amp is not that portable and is not battery powered. My tiny E07k works 22 hours on single charge.AKG k271 mkII is not perfect but has better midrange and lower bass exte... | |
| Best $4 I ever spent on audio You have to be careful since NE5532 is rated for 44V total supply voltage while LM4562 is rated only 34V. It would not work in my Benchmark DAC1 so I used LME49860 (11 of them). It sounds a little better than NE5532 but it depends. Some people pra... | |
| MP3 vs Hi Res I just bought portable E07K from Fiio. IT is DAC and amp. Previously I made an amp for my brother using full discrete circuitry with whole bunch of output transistors and two double FET input pairs plus DC servo. I even simulated whole circuit in ... | |
| MP3 vs Hi Res On average AAC compression gives better results than MP3. As Steve said 256k is very high quality, but I use 128k per channel (is it the same as 256k?) on my phone and it sounds perfect to me with external DAC/Amp and AKG headphones. | |
| Do USB micro-B cables matter for External HD's? Computer is reading HD data. Because timing is not involved it cannot affect sound quality. Since any cable emits ambient electrical noise good shielding is always desired. I wouldn't even worry about that unless your cable is in close proximity t... | |
| Ethernet over power electrical connection signals The main problem with digital transmission is time jitter. Ethernet transmission is jitter free since it does not contain time (transmitted is data) but increased ambient electrical noise might induce jitter in recreated clock, DAC or cable. It is... | |
| Apple TV sound quality as a transport Magfan, your AE might be defective. According to Stereophile review it produces respectable 258ps word clock jitter on digital output. Analog output is much worse. It receives compressed (ALAC) data and recreates clock. With my Benchmark DAC1 it s... | |
| Weird question re: balanced connection Zd542, you got it right! |