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I for one am on board with R2R. My Soekris 1421 uses sign-magnitude R2R tech, is linear and has a better sense of space than my new DAP, which uses the latest ESS sabre DACs. Snare drum sounds compressed and flat like a piece of paper on the DAP. I put amir fanboys in with crazy audiophiles..
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May 18, 2022 07:58
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sense of space
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May 18, 2022 09:42
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Can’t tell if they’re trolling or just upset because their DAC measured poorly and the designer’s response was “well it sounds good to me and my customers write me nice emails sometimes”.
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May 18, 2022 11:48
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Neurophonic posted:Somebody likes the concept so much that they made it into a ready to roll product: This is actually a fairly clever idea in that if you buy this and want to change your furniture it's going to cost you A LOT. But I like the idea of integrating audio in this manner instead of having to worry about placement and inevitably having to compromise.   Ultimate centre channel y'know...  https://l-acoustics-creations.com/uploads/2021/03/l-acoustics-creations-island-brochure-2021.pdf This is dumb and pointless though so very on-brand for this thread 
Olympic Mathlete fucked around with this message at 13:19 on May 18, 2022 |
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May 18, 2022 13:17
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the forefront of bubble-based technology
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May 18, 2022 18:54
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Does the Bubble secretly just encode a streaming URL?
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May 19, 2022 01:05
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Quick question, because the right people are all here. The sound of the video podcast of a regional radio station has been pissing me off since forever. Today it came to a head and recorded a sample (click for big).  What the gently caress? What's the significance of these notches? If there is any? Why even do this to content that's being streamed on the interwebs.
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May 22, 2022 10:14
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First guesses would be a lovely multi-band compressor slamming every frequency apart from the crossover regions wide enough to drive a flute into; and/or the stream encoding insisting that those frequencies are psycho-acoustically masked.
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May 22, 2022 11:21
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Yeah, looks like some kind of lovely codec choice. Maybe they changed encoding software and whatever that is was the default.
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May 22, 2022 15:07
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Please write in about it, if they don't seem to think anything's wrong they may not be hearing the final product
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May 22, 2022 17:15
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So I picked up a Sonos ZP90 (the direct predecessor to the Sonos Connect) at a thrift store that sells stuff by weight. Ie. I got this thing for like $3). While looking online to see if it's still viable.. I ran across ... This.. https://wyred4sound.com/products/upgrades-and-mods/sonos-connect-modified These clowns want $550 to swap out some of the components on the freaking digital output. You know... The 1's and 0's one. Here is one of the silliest Audiophile magical thinking reviews I've read on something for a very long time  https://www.hifi-advice.com/blog/re...r-modification/ A sample.. Some Audiophile posted:The W4S mod doesn’t change the analog output but replaces the entire digital circuit from the I2S output while adding a choice of upsampling rates, which need to be set at the factory. W4S advise 96kHz unless the DAC is somehow designed to sound better with 44kHz. I chose 96kHz because I know that the Rowland Aeris works well with it.
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May 24, 2022 00:48
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I've lost my goddamned mind
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May 24, 2022 14:18
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A comment on that review:quote:i see from your photo that you’re using ethernet connection on the wyred sonos connect. Could you discern any SQ difference between ethernet and wireless connections on the wyred sonos connect since the fave right now is ethernet renderer? Because 0s and 1s that go through the air are different than 0s and 1s that go through a cable (assuming all other things are equal).
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May 24, 2022 14:18
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I've been watching those Youtubes by audio-zizek where he measures lovely fake hifi gear, and he spends way too much time doing something "because someone will complain" despite the fact that the complainers will never give his measurements any value anyway. (Because they're insane.)
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May 24, 2022 14:22
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KillHour posted:I've lost my goddamned mind My brother has a pair of PC-2000s (non pro) in his theater. You're in for a treat.
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May 24, 2022 16:14
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The wyred4sound thing in hilarious to me because it's so transparently useless but folks want to believe in the jitter gremlins. Some people literally can't bring themselves to listen to something "cheap." 3D Megadoodoo posted:I've been watching those Youtubes by audio-zizek where he measures lovely fake hifi gear, and he spends way too much time doing something "because someone will complain" despite the fact that the complainers will never give his measurements any value anyway. (Because they're insane.)
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May 24, 2022 17:22
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KillHour posted:I've lost my goddamned mind I just scanned the "outlet" part, thought you were buying audiophile electrical sockets and agreed. The reality is much less bonkers Post a trip report once you get them
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May 24, 2022 22:05
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I've seen plenty of fancy power cords but never an audiophile outlet. Are there audiophile circuit breaker panels? That was a rhetorical question, of course you want to bypass all the circuit breakers for the purest signal.
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May 24, 2022 22:17
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taqueso posted:I've seen plenty of fancy power cords but never an audiophile outlet. Are there audiophile circuit breaker panels? That was a rhetorical question, of course you want to bypass all the circuit breakers for the purest signal. http://enjoythemusic.com/magazine/equipment/0114/audiophile_ac_outlets.htm
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May 24, 2022 22:29
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Audiophiles don't use electricity from the grid.
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May 24, 2022 22:41
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3D Megadoodoo posted:Audiophiles don't use electricity from the grid. my cpu overclocks better when its on lead-acid DC
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May 24, 2022 23:14
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qirex posted:The wyred4sound thing in hilarious to me because it's so transparently useless but folks want to believe in the jitter gremlins. I bought a Lightning to USB converter in an attempt to hook my DAC (Topping D90) to my iPad and hoooooly poo poo it sounds bad, so it's not like lovely broken digital poo poo isn't a thing. If someone tried to sell me a non-broken audiophile method of hooking USB to an iOS device I may be inclined to give it a shot.
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May 24, 2022 23:19
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RIP Paul Walker posted:I bought a Lightning to USB converter in an attempt to hook my DAC (Topping D90) to my iPad and hoooooly poo poo it sounds bad, so it's not like lovely broken digital poo poo isn't a thing. If someone tried to sell me a non-broken audiophile method of hooking USB to an iOS device I may be inclined to give it a shot. Also there's a new generation of "otg" lightning to usb C cables that might work. I was super pleased that my Qudelix 5x worked with my iPad Pro.
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May 24, 2022 23:26
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The only digital audio issue I’ve ever had was with my old DAC and the optical output from my TV, where I’d get random ~1 second audio dropouts. I assumed it was the TV but I got a different DAC and it hasn’t happened since.
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May 24, 2022 23:38
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RIP Paul Walker posted:I bought a Lightning to USB converter in an attempt to hook my DAC (Topping D90) to my iPad and hoooooly poo poo it sounds bad, so it's not like lovely broken digital poo poo isn't a thing. If someone tried to sell me a non-broken audiophile method of hooking USB to an iOS device I may be inclined to give it a shot. https://www.apple.com/uk/shop/product/MK0W2ZM/A/lightning-to-usb-3-camera-adapter
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May 25, 2022 01:12
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I somehow ended up on an Audiogon mailing list and while some of the things they shill for are reasonable (I have no quarrel with Hifiman) some of them are downright scams: https://add-powr.com/
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May 27, 2022 18:46
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Man I love to saturate the AC line with programmed harmonics.
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May 27, 2022 18:49
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Hey yall! So I run an Aiyama A07 that powers 2x JBL Studio 530s on my desk. I recently learned about op amps, and the fact that you can buy discrete op amps and basically upgrade them yourself if you open the amp and replace the chips. Well, I did that- I got 2x OPA1656 discrete op amps from China post and they finally arrived yesterday. Placing the chips was relatively straightforward. No issues there. However, one of the op amps is louder than the other, as far as I can tell. This carries across both channels; at first the left channel seemed boosted, so I swapped the op amps so that the "louder/fuller" op amp was on the right channel, and it did the same thing. I talked to the vendor and got a half refund, and just placed an order from a different vendor for 2 more, but I'm just wondering- is this common? I'm not hearing things, right? I'm completely in the dark about op amps so any kind of advice or explanation would be awesome. Maybe there's something I can do to fix the faulty one? I reseated them and made sure they were contacting fully and all that. I'm just wondering if this is a known issue and what might cause it. The packaging from china wasn't especially robust, so its possible one got damaged, but they both look completely fine from a structural perspective...
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May 27, 2022 20:34
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maybe you should use some testing equipment to objectively validate what you are hearing?
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May 27, 2022 20:40
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Typically the gain is set with external components, the op amps are very high gain without some feedback. When designing a simple circuit it is generally treated as infinite Maybe the quieter opamp has a low open circuit gain (aka it's not working right) If you have some resistors, a voltage source and a meter you could do some basic tests. I'd just wait for the replacements and hope for the best though taqueso fucked around with this message at 20:53 on May 27, 2022 |
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May 27, 2022 20:50
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Yeah thanks guys. I am not technical when it comes to this poo poo so I guess the move is to simply wait it out and see if the new parts work. I was just hoping someone might know if this is a common problem though.
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May 27, 2022 21:03
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Taima posted:
This is literally never worth it. The circuits are designed around using specific opamps, you can't just switch them around willy-nilly.
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May 27, 2022 22:52
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You can, depending on what is in there, swap for similar but better ones. Certainly not willy nilly, but it isn't out of the question. Is the result going to be noticeably better? Ehh, maybe if the old ones were really crap. AFAIK it's pretty hard to find a terribad opamp these days
taqueso fucked around with this message at 23:57 on May 27, 2022 |
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May 27, 2022 23:54
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Fair. The reason I tried it is because the Aiyama A07 in particular is well known for its ability to accept, and supposedly benefit from, discrete op amps. Switching op amps (or "rolling" as it seems to be referred to?) happens a lot in the audio scene. Of course, the audio scene is chock full of bullshit, so that doesn't mean much. However I would contest the idea that a device is always inherently suited for a particular op amp and would be negatively affected if another were swapped. I'm not saying its better either but it's clearly at least a wash in most cases, especially if you're swapping a cheap integrated op amp with a discrete, more advanced setup, from what I've seen it is rare that it would sound worse This is an example of one of the people talking about this: https://www.youtube.com/watch?v=iMOSrFYola8 Obviously a completely bullshit clickbait title, but this is the idea behind it. I don't know poo poo about anything though so whatever. It seemed easy and I found some nice discrete op amps from china for like 18$ so I figured why not as a mini side project  Users had reported good results with the exact op amps I bought, with the exact amplifier I bought, so it seemed worth an experiment. In terms of results, I honestly can't really say if its better. I would have to do some kind of blind test, but I lack the tools or really even the motivation. It's certainly not worse than the crappy integrated op amps included in the A07, other than the channel sound issue, which appears to be a problem with one of the two op amps in particular. The working one sounds quite good. e: removed side audio chat because it upset someone Taima fucked around with this message at 06:11 on May 28, 2022 |
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May 28, 2022 04:54
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FYI, you kind of spent a lot of money for the performance of your system. Also, putting random electronics in things that you aren't even close to understanding is nearly exactly the same as using magic crystals. Worse actually, since you hosed up your sound doing it. Why did you post in this thread anyway? Did you know you'd get laughed out of a serious stereo thread, or is this performance audiofoolery?
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May 28, 2022 05:15
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Oh. Well op amps seem like something that inherently straddle the line between “possibly beneficial” and “fake” so I figured this was a good place to ask about them. I just changed them as a fun side project but wasn’t sure if they actually helped and was also having an issue with one of them perhaps being slightly defective. It didn’t ruin the sound; one side just seems a bit more quiet, but I could be making it up. I still have the original op amps too so it’s fine. You don’t like the 530s? I think they’re truly amazing and I’ve heard my share of nice speakers that are significantly more expensive. But I doubt you want to chat, and you’re right that it’s not laser focused on the topic. You’re kind of taking a light topic and making it super awkward :/ in any case it wasn’t my intention to upset Serious Audio Man. Happy holiday weekend to you.
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May 28, 2022 06:09
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You're getting taken for a rube by expensive audio fetishists. I'm not upset, and I'm sad that you removed your price list. I'm definitely coming on strong since this an audiophile mock thread. I'm sorry I hurt your feelings, there's no need to edit your posts or anything like that. Have a great 3 day weekend!
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May 28, 2022 06:53
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It's a $79 amp. I get that tinkering with it is fun in the sense that tinkering with an inexpensive low-HP engine or a raspberry pi is fun, but if you want a better amp then you have pretty much the entire marketplace from $100 on up to pick from. Rolling opamps on it with any serious intent beyond "I wanna gently caress around with this equipment" is a quixotic attempt at turd-polishing
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May 28, 2022 07:18
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In the past I've definitely had bits of audio kit that were hotter on the right channel. I never actually looked into why this was though.
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May 28, 2022 09:50
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I think the issue is the cheaper OP amp depending on the chip kills some of the flow and brightness floor you get when you're using it. You spend that little money and you basically get the shell for a different chip. TLC2201IP is a good choice it gives you a much better brightness floor while clening the sound for a cleaner more enjoyable experience, and obviously the flow is way better.
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May 28, 2022 12:22
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