NOT: Theory on the new Schiit

Discussion in 'Digital: DACs, USB converters, decrapifiers' started by JewBear, Dec 14, 2015.

  1. purr1n

    purr1n Desire for betterer is endless.

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    Low / moderate efficiency cones that fit in narrow cabinets do not make good bass. Never have and never will. Good bass starts at 12" inches.
     
  2. bixby

    bixby Friend

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    " Good bass starts at 12" inches"

    I would agree that good bass is somewhat more difficult with smaller drivers, but to opine that a pre determined diameter is the start of good bass is a bit presumptuous.

    We all know that moving air is the goal and whether it is a 12 inch cone moving an eighth of an inch versus a couple of 8 inch cones moving air debatable. Yea, go off and do the math, but making statements like that only ...............oh wait was that a big dick joke, haha
     
  3. Sam Lord

    Sam Lord New

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    EDIT: Sorry Bixby! I had you and Marvey mixed up. My apologies! Fixed now.

    Marvey:

    "Good bass starts at 12" inches"

    My ATCs beg to differ.

    Bixby:

    "I would agree that good bass is somewhat more difficult with smaller drivers, but to opine that a pre determined diameter is the start of good bass is a bit presumptuous."

    +1 Bixby

    I have a pair of Velodyne DD12+. More output than I'll ever need, and everyone says the 10" is better. Of course: it's same driver structure, except for cone/basket size so less distortion at freqs above 20Hz, and great cabinets.

    Another example: B&W doesn't even *make* 12" drivers anymore, because...the pair of little 8" woofers on each 802D3 roll off -3dB at a *true* 17Hz, and -10dB at 14Hz!!! That's nearly an OCTAVE drop from the previous generation!!! INSANE. Faster than you can say, "Schiit!"
     
    Last edited: Oct 9, 2016
  4. purr1n

    purr1n Desire for betterer is endless.

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    Sam, you got bixby and me mixed up.

    Allow to inquire and explain:
    1. Good bass is not the same as bass extension. 14Hz? 17Hz? Stroke my weener please. Bass extension should never be used as a measure of good quality bass. It's probably one of the more minor factors because bass goes from 20Hz to 250Hz with the other more important factors being transient response, lack of compression, linearity up to 250Hz, and efficiency. I probably care a bit more about 45Hz on up. Look at a spectrum analyzer for most music. There's very little material below 30Hz. This of course depends upon content.
    2. What are you references and comparison points? A single JBL 15" on their K2 will destroy three or four of those overpriced B&W 8" pieces of shit. The reason audiophool companies don't make large drivers is because big wide speakers aren't stylish and housewives bitch about them being too ugly or too big. (Good quality large drivers tend to have high Vas, and thus require lots of big ass cabinets). This is the ONLY reason to go with smaller diameter designs. B&W makes skinny garbage or garbage audio jewelry anyway.
    3. A 15" driver will have almost four times the surface area of a single 8". This means 1/4 the excursion. Before you can say super long excursion makes up for that, smaller diameter higher excursion designs tend to have compromises. It's harder to keep the motor force linear throughout the excursion range. Spiders and surrounds are thicker, thus lowering efficiency and reducing responsiveness to lower level inputs and they also exhibit non-linear behavior at the extremes. It's not uncommon for speaker Qts to go to shit a few mm past the middle rest point. There's simply no replacement for displacement. The larger drivers don't even need to breath hard since they barely need to move. A big secret among experienced speaker builders: low xmax speakers tend to sound better than high xmax designs.
    4. I don't who is "everyone" in the "everyone says the 10" Velodyne sounds better". Personally, I think Velodyne subwoofers suck. Some people think they are good for home threatre. Personally, I'd run 2x12 or 15 pro drivers with high efficiency for HT. You know, like the ones they run in real movie threatres? By companies like JBL who can trace back their lineage doing this kind of stuff for 80 years?
    5. I have never in my almost 30+ years of speaker building experience found that smaller drivers produced better bass, all things being equal with the drivers. Until you experience 2x12 or 2x15, that is 2500-3000+ square inches of cone area barely moving (properly implemented) in a typical living room, you have not heard real bass.
    This is why a 6.2 liter engine is so much effortlessly powerful than a 3.0 liter engine. It's all about moving air effortlessly. The B&W is like the bitch in a 3.0 liter BMW. The 6.2 liter is Jason Stoddard in his Camaro ZL1 about to spank that bitch. (It's a Schiit thread, so I'd figure I'd throw Jason into it.)
     
    Last edited: Oct 9, 2016
  5. Madaboutaudio

    Madaboutaudio Friend

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    Pretty good guide:
     
  6. purr1n

    purr1n Desire for betterer is endless.

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    Sorry, the 6" and 8" being more "tight" and "punchy" is bad advice and utter bullshit. Although it's probably true for shit consumer subwoofers. I dunno. Subwoofer means crossed over below 40Hz to me. Bass covers 20Hz to 250Hz.
     
  7. purr1n

    purr1n Desire for betterer is endless.

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    Nonsense, as ATC themselves beg to differ. That's why they make a monitor with 15" drivers.

    I'll believe you when you tell me to my face that those faint thumps at the beginning of Thriller don't sound more realistic, weighty, effortlessly authoritative, and with more gravitis on these, than your smaller ATCs monitors.

    [​IMG]
     
    Last edited: Oct 9, 2016
  8. pedalhead

    pedalhead Friend

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    You guys are making me weep for my old 4 x 18" infinite baffles. Those monsters were brutal and tight as all hell. No substitute for big'uns imho.
     
  9. rsnblmn

    rsnblmn Acquaintance

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    Very interesting (and likely correct) theory which hadn't occurred to me before. Coincidentally, this is the exact reason I'm stuck in the deskop audio world until someday when/if I can afford a house with a dedicated man cave as I am married to an extreme minimalist. :)

    [​IMG]
     
  10. purr1n

    purr1n Desire for betterer is endless.

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    LOL, don't get me thinking about cutting holes in the wall of the living room.

    Haha. Yeah. I saved up to buy a house in my 20s. I had a nice two channel speaker system, but barely any furniture. I slept on the floor on a tatami mat. I wish I was married to a minimalist, but my wife likes furniture.
     
  11. SoupRKnowva

    SoupRKnowva Official SBAF South Korean Ambassador

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    Some of the best bass i ever heard was at @NekoAudio 's place, he has 4 massive subwoofers, in two absolutely massive cylindrical enclosures, though the whole thing is sealed, its all dialed in with dsp to be flat and powered by like 2000 watts of power. incredible
     
  12. purr1n

    purr1n Desire for betterer is endless.

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    I'll take that Edgarhorn sub:
    [​IMG]
     
  13. pedalhead

    pedalhead Friend

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    Hmm very nice. I took the "function over form" approach...

    [​IMG]

    [​IMG]
     
  14. purr1n

    purr1n Desire for betterer is endless.

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    ZOMG! That brings tears to my eyes! I'd do that if I still lived in Michigan. (No basements in California).
     
  15. pedalhead

    pedalhead Friend

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    oh man I so miss those things (moved house a while back). They've pretty much ruined me for subs since. Not the most wife friendly of audio endeavours though :confused:
     
  16. JK47

    JK47 Guest

    That's what @struggles rocks in his Edgar horn system. it took me a few visits to remember what the name of his horn system was, but that is basically what he has, save for the Fostex T500 (I think they're mkII's) super tweeters, and possibly different drivers. The sound his system can produce is effin' awesome. Definitely wants to make me give up headphones forever.
     
  17. Madaboutaudio

    Madaboutaudio Friend

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  18. Cspirou

    Cspirou They call me Sparky

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    Prolific DIYer Troels Gravesen confirms that the best bass he's heard was from a 15" driver in an open baffle.

     
  19. Azteca

    Azteca Friend

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    My grandpa gave his old speakers to me. Big Kenwood speakers from the 70s, 15" woofers on em. miss the hell out of them. My ears distorted before they did. Sounded great with all sorts of music but the difference with bombastic orchestral music is especially striking. Bookshelves may be practical but not the same at all. And of course my bass guitar rig is a 2x15, as was the previous one.
     
  20. Hrodulf

    Hrodulf Prohibited from acting as an MOT until year 2050

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    Big woofers are good, if y'know... they're good. The gist of the matter isn't big vs. small, a more interesting topic is good big vs. several good small which have similar effective area.

    After much soul searching I settled for a single 18" instead of two 12". If you ask me, proper bass management is the chief factor for good bass in most living rooms.

    Can you elaborate on this, Marv? Efficiency shouldn't impact low level signals, you just throw more power at it so it moves. The effects you're describing sounds more like static friction.
     

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