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  • AMP9x

    AMP-9-PS: Dual, an 8ch. HTPC 

    by
    more10
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     Number of Views: 1807 
    1. Categories:
    2. AMP9x
    Article Preview

    Box before assembling the thing.
    ...
    Read More Read More

    NEW way of building: Helperdeck 

    1. Categories:
    2. AMP3x,
    3. AMP4, AMP11,
    4. AMP6x,
    5. AMP9x
    Article Preview

    Now we can make use of Computer Aided AMP Building: CAAB
    ...
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    AMP9-Basic Performance measurements 

    by
    Jan
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    1. Categories:
    2. AMP9x,
    3. Reviews
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    To determine the AMP's capabilities.
    ...
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    Audio Building, Loudspeaker Sites 

    1. Categories:
    2. AMP1x,
    3. AMP2, AMP8,
    4. AMP3x,
    5. AMP4, AMP11,
    6. AMP5, AMP10,
    7. AMP6x,
    8. AMP7, Truepath, AMP15,
    9. AMP9x
    Quite a LOT of very useful links.

    Parallelling Outputs 

    1. Categories:
    2. AMP3x,
    3. AMP6x,
    4. AMP9x
    Article Preview

    Originally written for the AMP-9x, but also useable on AMP-3x, 6x
    ...
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    Some AMP-9Basic pics during a build 

    1. Categories:
    2. AMP9x
    Article Preview

    Just some close-ups of a build, to help you along.
    ...
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    Active Dual tone control 

    1. Categories:
    2. AMP3x,
    3. AMP6x,
    4. AMP9x,
    5. Circuits
    Article Preview

    Here's a very simple tone-control circuit. Low and Highs, baxandall config.
    Usually works well.

    The 741 is not quite an audiophile quality type, replace ...
    Read More Read More

    AMP-9-Basic: BoomBox, Bi-amp, active 24dB-LR 

    by
    sleepyhead
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     Number of Views: 3850 
    1. Categories:
    2. AMP9x
    Article Preview

    Greetings everyone, I made this.
    The victims.


    Torture testing.


    Confinement. ...
    Read More Read More

    Lots of 41Hz based Boomboxes at the Roskilde Festival 

    1. Categories:
    2. AMP6x,
    3. AMP9x
    Article Preview

    There will be at least a dozen 41Hz amp based Boomboxes at the Roskilde festival.

    The Roskilde festival is one of Europe's largest rock and music festivals with 120 bands and 75.000 daily visitors. This year it starts warm-up on the 27:th of june and the actual festival is 1-4th of july.

    free-to-use-photo by Klavs Bo Christensen

    ...
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    AMP-9x Power Booster 12>24V 

    1. Categories:
    2. AMP9x,
    3. Circuits
    Article Preview

    For use in a normal 12V, minus to chassis, car.

    It seems this circuit still needs to be tested! So we don't guarantee anything! Be careful. ...
    Read More Read More
    Page 1 of 3 123 Next LastLast
  • Updated sections

    Yesterday

    Thread: Help: No sound, no LEDs on AMP 9 PS

    Well, I already built two new, fully functioning amps; an AMP9B and...

    Starter: westmark | Last Poster: westmark
    Yesterday

    Thread: Help: No sound, no LEDs on AMP 9 PS

    I second V-bro on building a fresh one first...I spent nearly 2 weeks...

    Starter: westmark | Last Poster: le-gant
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  • About 41Hz Audio

    41Hz Audio is a small business that specializes in audio kits for DIY and OEMs. Our aim is to produce and maintain high quality, unique designs with decent prices. They are all available via the shop pages and we send all over the world.

    We also do consulting in electronics and measurement tecniques.

    But 41Hz Audio is just as much an active and very international community, which you can see best via our forum. Without the community we could not exist!

    41Hz is the frequency of the lowest note on a double bass or electric bass guitar
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