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Satanica

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About Satanica

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  • Birthday 11/01/1977

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    Darwin
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    Australia

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  1. Weakest Link(s) in the Audio Chain?

    Yes jitter induced distortion can be audible. But if I'm not mistaken, there's not one shred of evidence either measured or demonstrated that consumer grade products create audible levels.
  2. How to handle multi Subwoofer setup

    If two subs were exactly the same distance from the listening position then I think they're time aligned. That's how mine have measured. MiniDSP will do the job for you.
  3. To sub or not to sub

    Exactly, hopefully that's understood by someone.
  4. To sub or not to sub

    Yes, true, acknowledged. But all subwoofers suffer or are aided (depending on your situation and point of view) from room gain.
  5. To sub or not to sub

    I do, also see my previous post regarding SVS sub-woofers with their Room Gain Compensation feature. That doesn't mean they don't exist. I've posted my DEQX measurements before and I'm pretty sure you saw them. From memory mine are 6db down at 10Hz; I know nothing of this chuffing like a steam train you refer to. For sure room gain is helping here. Please, we've had enough photos of your appendages to last a lifetime.
  6. To sub or not to sub

    Infrasonic is not the "60Hz blues" dude. Infrasonic is less than 20Hz. As far as room gain goes, just EQ it out, job done. At least some SVS ported subwoofers comes with... Room Gain Compensation This menu option compensates for excessive amounts of ‘room gain’ (a rising low-end bass response most common in smaller listening rooms). Excessive room gain can create a bloated or bottom-heavy sound from the subwoofer. The acoustic roll-of slope of the SB13-Ultra is designed to complement available room gain in most listening spaces, so this menu control is rarely used with the SB13-Ultra. It is more commonly used with the SVS variable tune models (PB12-Plus, PC12-Plus, PB13-Ultra, PC13-Ultra). The room gain compensation control is adjustable for frequency (40 Hz, 31.5 Hz, 25 Hz) and slope (6 dB/octave and 12 dB/octave). When enabled, this control will reduce the output of the subwoofer below the selected frequency. The steeper the selected slope, the more aggressive the effect. The factory default setting is Disabled. AVR: If the A/V receiver set-up function equalizes the subwoofer channel (such as Audyssey MultEQ XT or XT32), the room gain compensation control is not required. If the A/V receiver set-up function does not equalize the subwoofer channel, the room gain compensation may be beneficial to reduce excessive amounts of low-frequency energy in smaller listening rooms to help restore a more balanced presentation. 2-CH: If excessive amounts of low-frequency energy are present in smaller listening spaces and the presentation seems bloated or bottom-heavy, the room gain compensation may be beneficial to help restore a more balanced sound.
  7. To sub or not to sub

    I notice that many ported subs are front ported so no problem with room boundaries. And in the case of SVS subs if I'm not mistaken the ports are tuned well below 60Hz.
  8. Weakest Link(s) in the Audio Chain?

    Not at all, the speakers and room will still be the weakest link by miles. Even lowish 128kbps MP3 rate playback takes one hell of system to conquer. Go on, compare MP3 playback between your Hi-Fi system versus your phone.
  9. To sub or not to sub

    I assume those 20 to 30Hz lift modes are there for counteracting speaker roll-off rather than room correction as such. From the manual: 4.2. Lifting EQ The LIFT button switches between the EQ settings of Anti-Mode 8033. The settings are stored with a longer press of the LIFT button. A brief sound heard from the subwoofer after settings have been stored indicates that you should release the LIFT button. 4.2.1. Flat The first EQ setting is “flat” or no lifting. Neither the LIFT25 nor LIFT35 LED are lit. In this setting, the target response is flat from 5Hz to 160Hz (8033 cinema) or 250Hz (8033S-II). This setting is automatically changed to Subsonic-Filter-Only after the first (main) calibration. You can override this and save the new setting. 4.2.2. Lifting 15-25Hz The second EQ setting is LIFT25. When the LIFT25 LED is lit, Anti-Mode boosts frequencies between 15 and 25Hz (max. 8dB at 20Hz). This will also activate a digital infrasonic filter, which will filter out frequencies below 10Hz, which can be dangerous to ported subs without proper protection. 4.2.3. Lifting 25-35Hz The third EQ setting is LIFT35. When LIFT35 LED is lit, Anti-Mode boosts frequencies between 25-35Hz (max. 8dB at 30Hz). As with LIFT25, the digital infrasonic filter is also activated. 4.2.4. Subsonic Filter Only A fourth EQ setting activates the digital subsonic filter without any lift. The Subsonic-Filter-Only mode is active when the LIFT25 and LIFT35 LEDs are dimly lit. The “flat” setting is automatically changed to this setting after the first (main) calibration. 4.2.5. Lifting 20-30Hz (Anti-Mode 8033S-II) The Anti-Mode 8033S-II has an additional EQ setting. Quickly press the LIFT button until both LIFT25 and LIFT35 LEDs are fully lit. This mode gives about 8dB of lift at 25Hz. The digital infrasonic filter is also activated. All lifting modes decrease the overall level of the signal by 3 dB to reduce the risk of clipping / saturating the output signal. Listening tells you which one of the lifting settings gives best results. The 'flat' and 'subsonic-filter-only' settings are probably the best options for music, because they give the most accurate transient response. Lift modes are not recommended when the dipole correction is active.
  10. To sub or not to sub

    From: http://www.connectedhome.com.au/review-dspeaker-anti-mode-8033-cinema-subwoofer-dsp/ Unlike a full EQ system, the Anti-mode does not boost frequencies which the subwoofer is reproducing relatively weakly.
  11. To sub or not to sub

    Well, you've missed out on all the fun! Being able to measure your bass and see the results is invaluable for sub-woofer positioning and crossover point settings. And how do you know that the results are as good compared to being able to manually adjust EQ to combat room modes? Also as far as I can tell the Antimode provides no boosting EQ, only cutting EQ. Manually, I use a couple of boost notches to fill in a couple of gaps a bit.
  12. Metal: Currently Spinning

    http://www.nuclearblast.de/en/label/music/band/discography/details/4882159.4882021.berserker.html
  13. To sub or not to sub

    To be fair in your setup you don't have to worry about it, at least anywhere near as much. And to be even be fairer I can kinda remember you hating Audyssey because it messed with things too much.
  14. To sub or not to sub

    Bingo!
  15. To sub or not to sub

    In your case you have an AVR which has already done digital to analog conversion and separated bass out with it's crossover. But think of the most common setup of an audiophile, a two-channel setup which is most likely going to have an input from a DAC of some sort and/or a turntable. They don't want their precious and pure analog signal converted to digital, then messed with and then converted back to analog again.
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