Added some delay to my tactile transducers signal

Discussion in 'Archived Threads 2001-2004' started by John H, Nov 16, 2001.

  1. John H

    John H Second Unit

    Joined:
    Nov 27, 1998
    Messages:
    472
    Likes Received:
    0
    I have been wanting to add some delay to the signal supplying my TT's for some time.
    I picked up a used DigiTech RDS2000 rack mount digital delay.
    First I checked the units low end frequency response in my shelf system to make sure it was adequate for this application.
    I took SPL measurements of sine waves starting at 50Hz down to 10Hz in 5Hz increments.
    Without disturbing the volume control on the preamp I inserted the RDS2000 unit and adjusted it's gain so the 50Hz sine wave matched in dB output as without the delay unit in line.
    I then measured all other frequencies below 50Hz and they also were the same as without the delay unit inline down to 10Hz.
    I then installed the unit before the amplifiers driving my HT tactile transducer arrangement. I use appoximately 13 ms of delay to compensate for my subwoofers 13' distance from the listening postion.
    Now the TT's don't hit before the bass wave arrives at the listening position.
    A very large improvement in tactile transducer/subwoofer blending. Explosions etc... are much more realistic.
    John
    ------------------
    Bedroom Based Theater
     
  2. John H

    John H Second Unit

    Joined:
    Nov 27, 1998
    Messages:
    472
    Likes Received:
    0
    Has anyone else experimented with adding signal delay to their TT arrangement?
    John
     
  3. Ben Reierson

    Ben Reierson Extra

    Joined:
    Oct 3, 1999
    Messages:
    19
    Likes Received:
    0
    I haven't tried this, but I _have_ thought about it before. I always figured the expense of buying a delay wouldn't justify itself given the fact that I only spent about $80 total on my 4 aura bass shakers in the first place. That and my couch is ony about 5' away from my SVS.

    How much did you pay for the digital delay?
     
  4. John H

    John H Second Unit

    Joined:
    Nov 27, 1998
    Messages:
    472
    Likes Received:
    0
    I picked it up used at a local music store for $100
    It is in mint cosmetic condition and dosen't seem to have been abused.
    I dont see it on the DigiTech website so I believe it is discontinued.
    John
     

Share This Page