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Modding the Practice amp: Replacement speaker

Discussion in 'Amps and Cabs [BG]' started by FireBug, Nov 30, 2005.


  1. FireBug

    FireBug

    Sep 18, 2005
    Houston
    Well, I got bored tonight so I took apart my practice amp. Everything.

    I'll start by saying that I love this little amp . It's a sealed box and is surprisingly warm sounding.

    These are the things that could be improved:
    *The speaker surround is part of the speaker and is very stiff. A looser surround would give me better bass response
    *I'm not getting enough treble out of the amp. I know it is capable because I have used it with an external cabinet.
    * There is no insulation. How would adding some improve the sound of the cabinet portion?

    That said, does anyone know of a good 8" coaxial speaker that is relatively cheap? I couldn't find any 8" car audio speakers...

    Thanks.
     
  2. Eric Moesle

    Eric Moesle Supporting Member

    Sep 21, 2001
    Columbus OH
  3. FireBug

    FireBug

    Sep 18, 2005
    Houston
    A looser surround allows the speaker to move more freely and produce a more articulate low end (i.e. Acme, AG)

    I should have put in that I was looking for a speaker based on the dims listed on the site (which is the main reason I included it).
     
  4. Eric Moesle

    Eric Moesle Supporting Member

    Sep 21, 2001
    Columbus OH
    You are mistaken. Even the Acme website claims RIGIDITY to aid in articulate low frequency production.

    What you should be focusing on is NOT a soft surround, but rather voice coil length and the range of xmax and xmech - excursion parameters, not "softness". A softer surround will lead to MUSHIER, uncontrolled low frequencies (see any tech sheet on "dampening").