Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 13 of 13

Thread: Subsonic Filter

  1. #1

    Member Sales Rating: (0)

    Join Date
    Jan 2008
    Posts
    53

    Default Subsonic Filter

    Can someone explain what this means(Subsonic Filter)? I have an older model (Onkyo integrated amp A-8067).And it works great.It may sound like an off the wall question but this inquiring mind would like to know.

  2. #2

    Member Sales Rating: (26)

    Join Date
    Oct 2006
    Location
    The tube lair in Charlotte, NC
    Posts
    11,298

    Default

    Hello. A subsonic filter omits or takes out the frequencies [generally] below 20 Hz on the frequency range.
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    "The best way to enjoy digital music reproduction is to never listen to good analogue reproduction". - Kenneth Swauger

  3. #3

    Member Sales Rating: (0)

    Join Date
    Jan 2008
    Posts
    53

    Default

    This is for a 2 channel system. Should it be engaged?

  4. #4

    Member Sales Rating: (26)

    Join Date
    Oct 2006
    Location
    The tube lair in Charlotte, NC
    Posts
    11,298

    Default

    You have a Turntable or do you run a live mic through it?
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    "The best way to enjoy digital music reproduction is to never listen to good analogue reproduction". - Kenneth Swauger

  5. #5
    Banned
    Member Sales Rating: (0)

    Join Date
    Oct 2004
    Location
    Mountains of NC
    Posts
    871

    Default

    Wow, blast from the past.

  6. #6

    Member Sales Rating: (2)

    Join Date
    Apr 2005
    Location
    Marietta, GA
    Posts
    504

    Default

    You only need to engage it if you're running a turntable source and your speaker's woofers are getting visibly slapped around during playback. By "visibly slapped" I mean you can see the woofer cones moving back and forth - normal audio frequencies move the cones too quickly to be visible.

    The most common source of subsonic noise is likely to be TT rumble, typically in the 6-10Hz region. Many phono stages have a built-in filter that starts around 10Hz and attempts to chop everything below that. So the switch possibly effects only the phono stage in your integrated, or it may be an external circuit (in case user plugs into aux from an outboard phono); depends on how it was designed.

    From a purist standpoint it may be deemed an unnecessary circuit, however if the slapping is too vigorous, though these frequencies are not directly audible, it could have impact on the overall sound and could potentially be bad for the woofers in the long run. FWIW my Benz phono has a built in 10Hz filter that's not defeat-able, and I'm glad it's there. Yet still, I can see some vibrations in the woofers when using my TT - I'm assuming it would be worse without the filter.

    I am sure the CD fanboys/girls will now generously supply a bounty of clever & humorous remarks about yet another vinyl quirk/hassle, but dammit it's still worth it to me and I still only love & listen to vinyl for 2ch :p :D
    Last edited by mulveling; 01-31-2008 at 09:01 PM.
    Tannoy Dimension TD10, SOTA Star Sapphire, Heathkit W4A's, McIntosh MC2100, Eddie-Current Zana Deux, Singlepower SDS, Sennheiser HD650, Audio-Technica L3000, Sony Qualia 010

  7. #7

    Member Sales Rating: (0)

    Join Date
    Jan 2008
    Posts
    53

    Default

    Not playing it that "hard". The system sounds wonderful. A compilation of older gear that has kept me mesmerized for a few years. I do have a TT( Dual CS 503) with a moving coil cartridge. Primarily for jazz music (albums and cd's).

  8. #8

    Member Sales Rating: (0)

    Join Date
    Jan 2008
    Posts
    53

    Default

    Nothing(and i mean NOTHING) beats the sweet sound of vinyl. Spin on baby...

  9. #9

    Member Sales Rating: (2)

    Join Date
    Apr 2005
    Location
    Marietta, GA
    Posts
    504

    Default

    Quote Originally Posted by jazzisnumberone View Post
    Not playing it that "hard". The system sounds wonderful. A compilation of older gear that has kept me mesmerized for a few years. I do have a TT( Dual CS 503) with a moving coil cartridge. Primarily for jazz music (albums and cd's).
    Quality older gear is truly a bargain paradise, if you know what to look for, or if you just get lucky! Most of the best 2ch audio stuff ever was conceived decades ago (IMO), and some of the stuff was really built to last. Heard some vintage 60's Eico 20 Watt tube amps a couple weeks back that made me think all the contemporary hifi amps I've heard (and owned) are way overpriced!

    Spin on, and enjoy!
    :D
    Tannoy Dimension TD10, SOTA Star Sapphire, Heathkit W4A's, McIntosh MC2100, Eddie-Current Zana Deux, Singlepower SDS, Sennheiser HD650, Audio-Technica L3000, Sony Qualia 010

  10. #10

    Member Sales Rating: (0)

    Join Date
    Jan 2008
    Posts
    53

    Default

    I'd love to get my hands on a set of Bose 901's. Now there's "old" gear that would sound awesome.

  11. #11

    Member Sales Rating: (26)

    Join Date
    Oct 2006
    Location
    The tube lair in Charlotte, NC
    Posts
    11,298

    Default

    Quote Originally Posted by jazzisnumberone View Post
    I do have a TT( Dual CS 503) with a moving coil cartridge.
    With the TT in the loop, you may want to run with the subsonic filter engaged. If you ever drop the needle accidentally while the volume is up, it just may save your speakers.

    One test you could perform is with the SSF disengaged, play an LP at concert levels and with the speaker grills off, take a look at the woofers. If they have excessive cone excursion whilst playing, turn down the volume, engage the SSF and see if the excursion reduces.
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    "The best way to enjoy digital music reproduction is to never listen to good analogue reproduction". - Kenneth Swauger

  12. #12

    Member Sales Rating: (0)

    Join Date
    Jan 2008
    Posts
    53

    Default

    I will try that. things are a little quiet here so i will do it during the day when everyone is awake. Ty for everyone who commented. Long live VINYL....

  13. #13

    Member Sales Rating: (16)

    Join Date
    Jul 2007
    Location
    Andromeda
    Posts
    14,230

    Default

    Quote Originally Posted by jazzisnumberone View Post
    I'd love to get my hands on a set of Bose 901's. Now there's "old" gear that would sound awesome.
    I could hook you up with a pair of 301's. Vintage (1980) Series 1 in minty condition.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. subsonic filter for turntables
    By danger boy in forum Electronics
    Replies: 1
    Last Post: 12-17-2007, 11:40 AM
  2. Subsonic Filter needed?
    By McLoki in forum Subwoofer Hookup & Bass Management
    Replies: 5
    Last Post: 10-31-2004, 10:58 AM
  3. Subsonic filter ?
    By miked909 in forum Car Audio & Electronics
    Replies: 7
    Last Post: 12-08-2003, 02:26 AM
  4. ported box / subsonic filter
    By miked909 in forum Car Subwoofer Talk
    Replies: 0
    Last Post: 11-20-2003, 02:33 AM
  5. Subsonic Filter
    By Blah in forum Car Audio & Electronics
    Replies: 4
    Last Post: 10-24-2003, 10:06 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts