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  1. Why no “slam” from my dual PB13 Ultras?

    Home Audio Subwoofers
    I’ve always read posts referring to people’s subwoofers literally shaking the house, knocking pictures off the walls, etc. I wonder if it’s all hyperbole or whether there is some holy grail of subwoofers that can literally shake you to the core. I do have a mix of both Clark Synthesis Platinum...
  2. 2-4 cs ultras

    Classifieds - Wanted
    I already have 4 cs ultras and would like to add more if your interested let me know...thanks Rich
  3. Dual LMS Ultras, vented, tuned to ????

    Ported Subwoofer Build Projects
    I hope to get some brainstorming from you smarties. Lets get low and loud here... Just pulled the trigger on 2 Ultras. I would really like to put together the optimal vented system with the drivers, enclosures, and the space I'm putting them in. TC Sounds site shows a couple of different...
  4. Double LMS Ultras in Curvey Cabs

    Sealed Subwoofer Build Projects
    Thanks to all the Shacksters who have helped inspire me and guide me in this build. 1. I am upgrading my subs from 2 Dayton 12" RS 4cf sealed boxes and 1 Dayton 15" Titanic 6cf sealed box both being driven by 2 - Dayton SA1000 sub amps. The Daytons go non-existent below 18hz. Knowing that some...
  5. Tune for new dual PC13 Ultras...?

    Hi all! Well, I just received my new dual PC13 Ultra Cylinders (replacing dual 20-39 PC+ cylinders), and I now need to decide what tune is safe for me to run in (the main cause for the upgrade in the first place). With the PC+ Cylinders (20Hz tune), I was extremely careful (paranoid?) about...
  6. 2 SVS Ultras with 1000 Watt Samson Amp

    Classifieds - Speakers and Subwoofers
    Hi, just seeing if anyone out there is interested in 2 SVS Ultras with a Samson 1000 watt amp..if you like BASS, this is the set up for you..im located in California 95695 zip. Thanks Asking $1,100 obo Samson 500 watt per channel x2 2 SVS Ultras passive subwoofers Specifications: Driver...
  7. cs ultras laying down?

    I'm sure this has been brought up before but.......is it ok to have the cs ultra lying down??? I'm tired of dealing with corners and spliting up subs so I decided to try something different. I'm going to put my 4 cs ultras underneith my couch, I know that sounds crazy but I already have the back...
  8. PC Ultras should i switch off after use ?

    Hi all, I leave my 2 PC Ultras on standby after use and i am just wondering if i should switch off from the mains when not in use would this cause any problems if left in standby. Thanks for you help.
  9. 2 sealed Maelstroms or 2 SVS PB13 Ultras

    DIY Subwoofers - General Discussion
    Hello! My question is what setup gives me better low end with movies, 2*225 L sealed Maelstroms with Antimode 8033 driven by Crown XTI2000 or 2*SVS PB13 Ultras.:dontknow: The Maelstroms would be in sealed boxes because that`s about max enclosure size i can do and don`t think Streamingaudio.se...
  10. SVS CS Ultras (2) - Cheap to good (Phoenix) home

    Classifieds - Speakers and Subwoofers
    I am moving next week and need to part with my pair of SVS CS Ultra subwoofers, including Sampson S1000 amplifier, and ART 351 equilizer (no cables - they're already packed). These are about 6.5 years old and still in perfect working order. Buyer would be responsible to pick up in Phoenix AZ...
  11. YAY! two PB13 Ultras for me!

    it's official, I am now an SVS customer! ordered two PB13 Ultras - though I won't get it til April. (shipping to the Philippines takes 30 days + the backorder of SVS) NOTE: this in no way means I don't want to win the Ultra Contest from the Shack - I want to win that one for my "other" HT :)
  12. Battle of the Ultras: SVS PC-U Old Versus New

    Hi- I posted this at a different forum, but thought I post it here as well. ------------ Well, I've had my new SVS PC-U (13) for over a week and I have been comparing it to my trusty old PC-U (with TV12.2). My room is about 20x16x8 and is open via 7 ft wide opening to the rest of the 1500 sq...
  13. How would dual SVS PB-13 Ultras compare to a single JL f113?

    Home Audio Subwoofers
    I currently have dual f113s in a 6000 cu ft leaky room (effective 7000 cu ft) and I should say the performance is astonishing. The subs are operated in dual mono mode placed on either side of the room as that gives me a flatter response, larger sweet spot and more uniform pressuirization across...