13-Jul-2021 (Tue) Wherein we bring you the brown note

Thanks to another generous donor, we were able to upgrade our subwoofers for full compliance with the Dubstep Accords of 2015. This took a little longer than we had hoped -- we thought we might be able to get these in before reopening -- but they're in now! We replaced two of our four EAW DCS2 subwoofers with a pair of EAW SB2001 subs. They each have two independently powered 21 inch drivers, run by a pair of Crown Macrotech 5000i amps.

The new ones are half the size of the old ones (and about twice the power) so we're going to pack that gap above them with insulation and wall it off. No camping in the bass bin.

The old subs cover an effective range of about 45hz to 80hz, whereas the new ones go down to 20hz! But they are best below 50hz, which is why we're using both models. At 20hz you are feeling it more than hearing it, but modern production has been favoring frequencies that low, particularly in the dubstep world, and it really provides that extra oomph! It will rattle the drink out of your cup, as demonstrated in this video:

The two old subs are going to go up in the Lounge, giving that room quite an upgrade. We use all parts of the buffalo.

Also! Today is the 20th anniversary of DNA Lounge's re-opening, back in 2001 when I bought the place. The club has been DNA Lounge since 1985, but my tenure here has now hit two decades, which is kind of hard for me to comprehend.

Here's an ad for our re-opening weekend in the Bay Guardian (thanks, Internet Archive!) from the before-before times when newspapers were how one advertised.

15 Responses:

  1. Christian says:

    Ah as these are the primary events i attend here I am extremely pleased to read this. I will tell all my su loving friends of the good news. The council of dubstep appreciates this

  2. prefetch says:

    Congrats - looks like you're up for some fine porcelain gifts.

    Could you not put some sort of series of tubes in the void, get some free reinforcement/boost? Or is the output too directional?

    • tfb says:

      I think with 21 inch speakers the resonance of the speaker would already be so low you'd need a really long port to get anything from a bass reflex system. I'm also not entirely convinced that getting the thing below 20Hz is very useful: I can count to ten at ~5Hz I think, I could perhaps make sense of someone counting at 10Hz if it was repeated. I suspect how useful it is depends on what the resonant frequencies of various bits of people are. However I could be wrong about both things (and I just know someone is now going to say that the gold standard for Dubstep is 5Hz or something)

  3. Big says:

    So if I’m reading that correctly, one DCS2 amd one SB2001 should be adequate for my lounge room?

    (If I drunk-eBay those, I’m blaming you Jamie…)

  4. Rikard says:

    But, if this is going, how will I be able to tell if any tyrannosaurids are approaching?

  5. o.o says:


  6. Been watching this process since the late 90's. Happy anniversary.

  7. andrew says:

    Those ADS from the 2001 Guardian are something. Hollywood Billiards! Paradise Lounge!

    Also, bring back the ARENA name for the main floor.

  8. Erin M says:

    If I feel any earthquakes, I know who to blame :)

    Congratulations on your 20th since re-opening!

  9. グレェ「grey」 says:

    20Hz? Impressive!

    Some of the well regarded among bass producer Funktion Ones speakers are renowned for being able to hit 21Hz cleanly.

    There are not many other vendors who even come close to that as far as I know. Void for example, while they look really cool, seem to have much less impressive frequency response characteristics.

    Maybe Meyer Sound Laboratories has something competitive? I'm not sure, certainly most speaker vendors don't even begin to approach 40Hz bass.

    • Ian says:

      Most touring subs will definitely go down below 40 (JBL VTX and L'Acoustics SB28 goes to down to 25 Hz). When it comes to lower than that, you've got Meyer's VLFC that covers 13-30 Hz, which goes lower than Funktion One's Infrabass 218 20-80 Hz F1 also has the F132 which has a 32" (!!!) driver using some sort of linear motor instead of a voice coil (probably akin to Servodrive).

      Interestingly neither Meyer nor Funktion One release datasheets with frequency response or distortion diagram so it's hard to compare at a glance without listening to them or measuring how well they perform.

    • elektro says:

      there was a rotary subwoofer that I heard at a show (pasic??) in 2005 or so called a Thigpen. It pitched propeller blades and could effectively go down near DC (I guess it could do DC and maintain some static pressure. It wasn't very loud and targeting the home theater market. I am pretty sure it still exists: rotarywoofer.com

  10. phule says:

    20Hz for 20 years. Congratulations!

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