 |
 |
 |
What is the last thing you thought?, Tech Edition |
|
Mar 24 2022, 23:49
|
Moonlight Rambler
Group: Gold Star Club
Posts: 6,487
Joined: 22-August 12

|
i read in a doubled format on my laptop/tablet convertible (x201 thinkpad) sometimes, but usually i just rotate it to portrait and read one page at a time.
This is another reason monitors should be 1:1. You'll never have to make the width/height tradeoff again.
This post has been edited by dragontamer8740: Mar 25 2022, 05:32
|
|
|
Mar 25 2022, 13:51
|
uareader
Group: Catgirl Camarilla
Posts: 5,594
Joined: 1-September 14

|
I wonder if there are sites/services that allow to download torrents online (in other words, it's another machine that download and share the torrents), and when the download is complete, you can direct download it, and you don't have to worry about the sharing (though I guess you would have to set sharing settings (ratio/duration/others...) and if it was a paid service, it would cost more for higher settings).
|
|
|
|
 |
|
Mar 25 2022, 15:11
|
Wayward_Vagabond
Group: Gold Star Club
Posts: 6,305
Joined: 22-March 09

|
Some musings instead of just lurking. Got some Bose 301 IV speakers off Craigslist recently. Currenty have them plugged into a chinese Pyle 2x120W amp. Specs on them are light, but best I can tell the series IV ones are 8 ohm, rated for some 65W and require at least 10W of amp. Not bad, but I think the chinese d-class amp isn't doing them favors The bass is a bit light, and they don't seem as -detailed as they should?The amp also has a noticeable amount of hiss and has voice annoucements in a Chinese lady's voice that can't be turned off. It also has blindingly bright blue LEDs. Ugh. I have a really nicely made monoblock amp for communications stuff. I figured out how to bypass the processing for that and use it as hifi instead. Doing an A/B test, it's pretty obvious wether the filter is in the lop- it does and impressive job of ripping the vocals out of music (and giving just clarified vocals). I found a matching one, so when it shows uo, I'm add a new RCA jack to pipe audio into it past the filtering stage. Very helpfully, all 5x quad op-amps are just dealing with that, and it outputs identical signal level- So all I need are DC blocking and decoupling caps, and some pad/protection resistors. I'll just match the values on the oe input. Reverse engineering says it'll do a solid 50W RMS into 8 ohms, but it may be a bit light on heatsinking for extended use at that power despote everything else being very overbuilt and well done. It uses an LM3886TF and linear PSU with a torroidal transformer, and LM317/LM337 for opamp rails btw.
In a vaugely related project, I got a Bose PS28 III powered sub/amp for free. It takes a really weird proprietary interface, Bose Link, which consists of 6 modulated audio signals, serial data, and a power on line. I'm not buying a Bose receiver to juice it up. Pulled the subwoofer amp + PSU board out and started tinkering on it. There's no sort of standy power out of the PSU, and grounding out any if the ribbon cable pins didn't fire it up. I decided to try injecting power into the two optoisolators. I settled on 5V via a 170ohm resistor (roughly 20mA into a Vf1.5 LED if I recall my maths). Applying it to one opto fires the main rails up to +/- 20V. Powering the other opto, while the first one is, takes em up to +/-40V. The power supply is very well made and filtered, and actually in a farraday cage with gasket. The amp for the subwoofer drivers is a TIP35C+TIP36C pair with a TL076 (I think) opamp driving it, and the two speakers are in parallel. I'm thinking I can just inject a channel of low-pass filtered audio right into it now that I can hotwire the power supply on. I can't recall what modules the contoller/satellite speaker amp uses atm, but it's 3x stereo LM modules, the center speaker one strapped in bridge mode. Too much work to fuss with that board, I might just salvage the line filter from the corner and pull the amp modules off it.
This post has been edited by Wayward_Vagabond: Mar 25 2022, 15:12
|
|
|
|
 |
|
Mar 25 2022, 15:39
|
Wayward_Vagabond
Group: Gold Star Club
Posts: 6,305
Joined: 22-March 09

|
New post cause the old one is getting long. Update of MDR-7510 cans. After airing out for a month while I was working OT and fighting my printer, they smell better. The chinese pads came amazingky quickly, I think I just got very lucky or something. They were higher quality than the amazon 7506 pads, but were also not meant for 7510 cans. I used some excessive force and the height if the leather 'rim' the goes into the headphones to mke up the size difference. They got rid of more smell, and made the speakers stop touching my ears. I'm very pleased with the sound of them. Good bass response via the 50mm drivers, very detailed midrange, and treble is present without being shrill. Some stuff with cymbals mixed a bit hot is very hard for to listen to on certain headphones. Earcup angle and amount of articulation to the headband are quite comfortable. Nonissues wearing them for a few hours. Only complaints are how hard pads are to source, and the pivot needs to just a hair lower on the earcups- the bottom edge doesn't seal well without a bit of wiggling around.
|
|
|
|
 |
|
Mar 25 2022, 19:41
|
Moonlight Rambler
Group: Gold Star Club
Posts: 6,487
Joined: 22-August 12

|
I feel you on the cymbal problems.
As acceptable as the monoprices I got are (and I think they are better than my old bose OE2's by far, at least in their current respective conditions), they do have the shrill treble problem when cranked.
|
|
|
Mar 25 2022, 19:42
|
Scumbini
Group: Gold Star Club
Posts: 912
Joined: 2-December 15

|
QUOTE(uareader @ Mar 25 2022, 13:51)  I wonder if there are sites/services that allow to download torrents online (in other words, it's another machine that download and share the torrents), and when the download is complete, you can direct download it, and you don't have to worry about the sharing (though I guess you would have to set sharing settings (ratio/duration/others...) and if it was a paid service, it would cost more for higher settings).
[ en.wikipedia.org] https://en.wikipedia.org/wiki/Seedbox
|
|
|
|
 |
|
Mar 25 2022, 20:09
|
Anime Janai
Group: Members
Posts: 1,090
Joined: 23-February 09

|
QUOTE(uareader @ Mar 25 2022, 04:51)  I wonder if there are sites/services that allow to download torrents online (in other words, it's another machine that download and share the torrents), and when the download is complete, you can direct download it
If you are looking for something close to turnkey, check out the head / seedbox services at MangaDex via [ sdbx.moe] https://sdbx.moe/ as your baseline comparison not just for pricing, but for service and support.
|
|
|
Mar 27 2022, 11:22
|
EsotericSatire
Group: Catgirl Camarilla
Posts: 12,736
Joined: 31-July 10

|
GPU accelerated raid apparently works with the right bios/drivers since 1000 series Nvidia.
It might actually become a thing. The performance beats current CPU raid and most consumer raid options but currently is gated behind proprietary bios/software.
|
|
|
Mar 27 2022, 14:56
|
EsotericSatire
Group: Catgirl Camarilla
Posts: 12,736
Joined: 31-July 10

|
QUOTE(uareader @ Mar 27 2022, 02:42)  Thought: "Wow, this subforum only have 1 page of topics!" (IMG:[ invalid] style_emoticons/default/ohmy.gif) Mods archive most of the topics. They are still there but they are not as easily accessible to prevent necro-posting. QUOTE(Tenboro @ Feb 7 2008, 18:58)  Your problem is Windows.
Most of the posts are just shitting on windows thought to be fair lol.
|
|
|
Mar 27 2022, 16:21
|
Moonlight Rambler
Group: Gold Star Club
Posts: 6,487
Joined: 22-August 12

|
QUOTE(EsotericSatire @ Mar 27 2022, 12:56)  Most of the posts are just shitting on windows thought to be fair lol. Ah, the good old days when Vista was the biggest concern people had with Windows.
|
|
|
Mar 27 2022, 18:13
|
rozos
Group: Members
Posts: 347
Joined: 20-April 11

|
I need to retire my 4790k.
|
|
|
Mar 27 2022, 20:44
|
cate_chan
Group: Members
Posts: 406
Joined: 4-May 18

|
QUOTE(EsotericSatire @ Mar 27 2022, 14:56)  Most of the posts are just shitting on windows thought to be fair lol.
an always relevant topic
|
|
|
Mar 28 2022, 04:54
|
Moonlight Rambler
Group: Gold Star Club
Posts: 6,487
Joined: 22-August 12

|
QUOTE(rozos @ Mar 27 2022, 16:13)  I need to retire my 4790k. Why though Give it to me
|
|
|
Mar 28 2022, 12:22
|
rozos
Group: Members
Posts: 347
Joined: 20-April 11

|
QUOTE(dragontamer8740 @ Mar 28 2022, 04:54)  Why though
Give it to me
Well, not that its getting that old, but damn. For amount of performance it churns out, its power consumption is atrocious by 2022 standards. My other PC used for streaming, 10400 (the shittiest 10th gen i5 non-t SKU) beats it in every single metric while consuming just a fraction of power. Plus I feel I need to use ecc ram now. Just the other day my pc went bsd out of nowhere while just doing some ssh. I was like, wtf ram? you had one job. This post has been edited by rozos: Mar 28 2022, 14:57
|
|
|
|
 |
|
Mar 28 2022, 14:17
|
Moonlight Rambler
Group: Gold Star Club
Posts: 6,487
Joined: 22-August 12

|
QUOTE(rozos @ Mar 28 2022, 10:22)  Well, not that its getting that old, but damn. For amount of performance it churns out, its power consumption is atrocious by 2022 standards. My other PC used for streaming, 10400 (the shittiest 10th gen i5 non-t SKU) beats it in every single metric while consuming just a fraction of power.
Plus I feel I need to use ecc ram now. Just the other day my pc went bsd out of nowhere while just ssh. I was like, wtf ram? you had one job.
Again then, please consider giving it to me. I am on an ivy bridge ("3rd gen") CPU for my desktop, and Westmere/Nehalem ("1st gen") CPU for my laptop. Would be nice to have those newer instruction sets (to emulate a switch). I likely have poorer efficiency; ivy bridge is larger than broadwell and newer in terms of process node. As for RAM, that's unfortunate. I've been using the same budget non-ECC DDR3 in my desktop for about eight years without issues. Maybe I'm just lucky (or maybe the scale/process DDR4 is manufactured on makes it more vulnerable?). I'd like ECC, too, but currently I can live without it. This post has been edited by dragontamer8740: Mar 28 2022, 14:26
|
|
|
|
 |
|
Mar 28 2022, 14:41
|
neopet
Group: Gold Star Club
Posts: 4,155
Joined: 4-January 14

|
work
|
|
|
Mar 28 2022, 14:53
|
Moonlight Rambler
Group: Gold Star Club
Posts: 6,487
Joined: 22-August 12

|
^wow, what a unique thought
I think it would be fun to mess with a dye sublimation printer.
|
|
|
|
 |
|
Mar 28 2022, 18:58
|
Wayward_Vagabond
Group: Gold Star Club
Posts: 6,305
Joined: 22-March 09

|
My other good monoblock amp is arriving today, then I can modify them both. Main thing I'm trying to decide is I want to repurpose the 'Loop Out' jack for the new PA input, stick on a mode switch, or install a new RCA jack. Leaning towards the former, or the latter if the jack is too hard to intercept. It should just be a matter of cutting the track, then tacking on the dc-blocking cap and pad resistors. Then cut the track feeding the PA, and jump onto that. Then do it a second time. Got some white thermal grease to help bond everything together. I have some heatsink bits I can stick on, but I'll see what just the aluminum chassis does.
I found a nice rackmount preamp with bluetooth to pair with the pair of amps. I'll see if the china poweramp is too noisy to use for the subwoofer, right now I just have either driver brought out to binding posts.
|
|
|
|
 |
|
Mar 28 2022, 19:39
|
rozos
Group: Members
Posts: 347
Joined: 20-April 11

|
QUOTE(dragontamer8740 @ Mar 28 2022, 14:17)  Again then, please consider giving it to me. I am on an ivy bridge ("3rd gen") CPU for my desktop, and Westmere/Nehalem ("1st gen") CPU for my laptop. Would be nice to have those newer instruction sets (to emulate a switch). I likely have poorer efficiency; ivy bridge is larger than broadwell and newer in terms of process node.
As for RAM, that's unfortunate. I've been using the same budget non-ECC DDR3 in my desktop for about eight years without issues. Maybe I'm just lucky (or maybe the scale/process DDR4 is manufactured on makes it more vulnerable?). I'd like ECC, too, but currently I can live without it.
Actually 4790k is still DDR3. It's the last one from intel before they move to ddr4 though. I'd rather just post online ad to self-collect right in front of my house ahaha. This thing actually still has some market demand given its position as the most performant desktop processor you can operate out of DDR3.
|
|
|
|
 |
|
7 User(s) are reading this topic (7 Guests and 0 Anonymous Users)
0 Members:
|
 |
 |
 |
|