Has anyone modified SDA-2Bs to SDA-1Cs?

I'm thinking of adding two more bass drivers (one SDA one Regular)and an SDA tweeter after the upgrade. I'll modify the mounting board by placing the tweeters side by side and cutting new holes for the woofers. Any thoughts?

Best Answers

  • FestYboy
    FestYboy Posts: 3,861
    Answer ✓
    Won't be the same, enclosure volume is different, therefore throwing the tuning off.
  • Gerres26
    Gerres26 Posts: 859
    Answer ✓
    I would just buy a set of 1c's if thats what you want. You can always sell the 2b's to recoup most of the cash and you won't have to worry about ruining a perfectly good set of speakers in the process.
  • pitdogg2
    pitdogg2 Posts: 24,471
    Answer ✓
    I'm thinking of adding two more bass drivers (one SDA one Regular)and an SDA tweeter after the upgrade. I'll modify the mounting board by placing the tweeters side by side and cutting new holes for the woofers. Any thoughts?

    That's just silly talk!
    Cabinet is not large enough
    Crossover is not right.
    Cheaper to just buy a different set of speakers.
    Many think a fully modded sda2b set runs circles around the 1c
    The sda2b can be TL'd
  • verb
    verb Posts: 10,176
    Answer ✓
    I'm thinking of adding two more bass drivers (one SDA one Regular)and an SDA tweeter after the upgrade. I'll modify the mounting board by placing the tweeters side by side and cutting new holes for the woofers. Any thoughts?

    These Polkies can be a bit rough @gary_haskins ! Don't fret :smile: I own a set of 2B's, and recently acquired a set of 1C's that I'm completely modding. See my thread:

    I bought them for 3 hundie. Lot's of fun with the mods!

    http://forum.polkaudio.com/discussion/179960/another-1c-upgrade-path/p1

    BTW - Welcome to CP!
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.

Answers