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JDWest

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About JDWest

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    Perth
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  1. Well in that scenario you have actually done a listening test of the product in question and your observations should be respected.
  2. A very real problem...for which I have no solution...is that there is a large number of forum members that stopped posting their listening impressions of cables and other devices/tweaks due to the inevitable responses. We are completely missing their input and that's a real bummer. Most members do aim for mutual respect and politeness but when one side's argument is effectively "you imagined it" and that gets repeated ad nauseam, then it's easy to understand if the other side is already a bit offended, regardless of the language used.
  3. I agree...except that my first thought was to wonder about the test tracks being played. I think of a few of my favourite tracks that have more sibilance than I would like but my ATCs will simply reveal that and also the reveal lack of sibilance on other tracks. Regarding the bass, it is tight...comes and goes quickly...as it should IMO, providing the recording/mastering didn't alter that. Now that can lead some people to find ATCs a bit bass shy. "Too much harmonics"[in low end] makes me think that the opposite was experienced during this demo. Something in the recording or outside of the ATCs is my guess...but that's just IMO and YMMV etc. We all like what we like and don't need to justify that. Cheers, John
  4. Glad I never had to choose between my wife and my ATCs. I would really, really miss her.
  5. I think the term "bookshelf" confused some of us here; thought you were talking SCM 11s or 19 passives, which obviously have less bass than the higher models. "Classic" is the term for stand mount 50s and up. I spoke with ATC before upgrading my 100A Classics to 150As. They said there is no extra bass extension with Towers vs Classic. As @Tobes said, the working cabinet volume is the same. Indeed, ATC claim no sonic difference at all between Classic and Tower in the same range. I suppose some very minor difference is possible due to interaction with room but ATC suggested it is a purely aesthetic choice. I went with 150A towers anyway. The extra bass extension of my 150s compared to my 100s was quite obvious. This could potentially introduce more difficult issues with your room, I suppose. Cheers, John
  6. Yes, the pricing on domestic versions has come down so I wouldn't expect that big a difference. You do pay a fair bit extra for the towers, special veneers and gloss finishes (as per Hi Fi show demo pair). ATC say they sound the same, though I can't rule out very minor differences. Apparently, the "effective internal volume" (I made that term up) is the same in towers vs Classic. I guess the towers have an extra cabinet section below. Both domestic models come with spikes, though no stands are included with Pro models. We recently got a new thread for ATC here; https://www.stereo.net.au/forums/topic/292410-atc-speakers-owners-discussion-thread/?tab=comments#comment-4382482 I'm an ATC dealer. Cheers, John
  7. I'd better start by declaring that I'm the ATC dealer in WA. I have also owned ATC speakers since 1996 when I bought a pair of 100 actives...so feel free to assume I'm biased for one reason or the other. 😉 The tweeter and midrange driver are offset to reduce distortion by having different distances to the side edges of the baffle. The grill that fits around the baffle, has rounded edges to further reduce edge diffraction. In practice, the effects of grill on or grill off are quite subtle and owners are split about which they prefer sound-wise. As for tweeters in vs tweeters out, however, that change can be huge. @Misterioso I think you have it correct about distances to side walls. In a room that is nearly 10m long but only 4m wide, my current 150As and previous 100As sounded far better with tweeters inwards. Id recommend that as the default orientation. All of the domestic models, including towers are available in Australia. Apart from cabinet size and woofer size, the 50s/100s/150s are identical. The domestic models come with a quality wood veneer as standard. The professional models do not. Construction of the cabinets for domestic models is outsourced to a manufacturer of high end furniture. I have read that ATC build the cabinets for professional models themselves. The baffles of the professional models have a kind of "cut-out" that is visible and is intended for an alternative tweeter position if the monitors will be placed on their sides. Cheers, JD
  8. I can't help you with the ProAc part of the comparison but if you want a demo of the ATC SCM 11s, I can certainly help with that. My service is much better than my website 😄. Not sure if your previous comparison used the newer design ATCs with the ATC built tweeter but in any case, you are more than welcome to come over, have a listen and see what you think. Cheers, John
  9. $135, which includes the postage back to you. That's without changing the faceplate; extra $90 for that. Cheers, John (Sublime Hi Fi)
  10. @frednork An easier way to access TOP is via the Snakeoil interface. Go to the System tab and click the button labelled TOP. Also, when you want to add a process priority in the Snakeoil tab, go to TOP first and note the exact spelling of the command. The commands that pop up near the top of the list are the ones of more interest. Use the same spelling when you enter them in Process Priority in the Snakeoil tab. If you set them at 99, then when you go back to TOP, you should see "rt" for that command in the PR column. Otherwise you'll see the number you entered. Note that TOP within Snakeoil may abbreviate the command name with a "+" at the end. It will still work typing that or you can use the full name as you see when ssh-ing into TOP. I can see that it didn't work in your last attempt because you only entered part of the command name. Here's an example from my system:
  11. @rmpfyf Do you know another ssh method to shut down mobo USB hubs/ports? ...other than via uhubctl? I use a SOtM PCIe-USB card to DAC and don't use any mobo USB ports on my Gigabyte GA-B250M-HD3. Unfortunately, uhubctl doesn't detect my mobo's USB hubs; it only detects the ones connecting to my DAC (I can switch those off in Snakeoil). lsusb shows all the hubs. Cheers
  12. I'm a bit confused. So in BIOS I do always enable HPET timer. You agree I think? Within Snakeoil web interface, I can select tsc, hpet or acpi_pm. I always select tsc (don't need an ssh command to do so). I think you find that a reasonable choice. Now, with HPET enabled in BIOS and tsc selected in Snakeoil, would the following command change anything?: echo "8192" | sudo tee --append /proc/sys/dev/hpet/max-user-freq OK, the number adjusts interrupt freq, so does the higher number mean that interrupts can happen faster?...or something like that.
  13. @rmpfyf thanks kindly for the input. So many questions 😉 but I'll start with clocksource fequencies and these commands: echo "8192" | sudo tee --append /proc/sys/dev/hpet/max-user-freq echo "4095" | sudo tee --append /sys/class/rtc/rtc0/max_user_freq Within Snakeoil I found tsc sounded best for me. It also gave the best cyclictest results. In BIOS if I disabled HPET timer it sounded worse and cyclictest results were shocking. I don't know how this all relates; maybe it makes no sense and I did do different tests on different motherboards at different times. Anyway, I see hpet in one of the above commands and wanted to know if these commands need to change if I'm selecting tsc? For the numbers (8192 and 4095 seemed to work for me) is there any rule like needing to be a multiple of x or can I enter any number? Cheers
  14. Open the Snakeoil tab in your browser again and force reload the page. That should tidy up the text. On Mac: Command + Shift + R On PC (not sure) Ctrl + Shift + R or Ctrl + F5
  15. @rmpfyf you seem willing to teach us some ssh commands. I'm keen 😀. I'm comfortable sending ssh commands to my Snakeoil server from my Mac via Terminal but don't know many useful commands and I'm a linux novice; at best. I can display TOP and get it to show last used cpu core but wouldn't know how to assign a process to a CPU core. Better still, I would like to try turning some USB hubs/ports off but not sure it is possible with the USB hubs used in my mobo. In fact none of the mobos I've tried had any BIOS setting to turn off USB and Snakeoil doesn't seem to identify them as...hmmm...switchoffable. Cheers, JD
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