Garage Stereo

Discussion in 'DIY' started by Mike B, Apr 19, 2009.

  1. Mike B

    Mike B Well-Known Member Donor War Zone Member Top Poster

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    This is the only amp I've ever had problems with and I've built 5 so far. All the Bottlehead stuff worked w/o blowing anything up and so did the Elekit as well as that K12G above.

    The ST120 puked the rectifier within an hour and some shit happened with the KT88 swap as soon as the thing started conducting. But this amp also has a lot more power and a lot more voltage. First time I ever saw a resistor blow w/o any outside signs at all. No smoke, no cracked case, not even discolored in any way. Looks fine from the outside, just measures 6.8 meg.

    I'll hang with this until the resistors arrive. Got them from some outfit in WA via ebay, so should be here soon.

    Also upgraded my head unit, might as well put in a good source eh? Ordered up an Alpine CDE-HD149BT, has HD radio too - :)
     
  2. chad

    chad Well-Known Member War Zone Member Top Poster

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    Just got word that a couple heavy boxes were delivered today. Hmm wonder what's in them.


    Sent from my iPhone using Tapatalk
     
  3. Mike B

    Mike B Well-Known Member Donor War Zone Member Top Poster

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    Cool. They hit the promised date!

    You've got enough power there to get to concert levels - :)
     
  4. Mike B

    Mike B Well-Known Member Donor War Zone Member Top Poster

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    Redid the garage sub. The Quattro went bye-bye and a Morel MW 1254 took it's place. Why such an obscure driver? It was the only one I found who's parameters matched the existing box.

    But a new baffle was needed as the cutout was much smaller, so I cut the old baffle off;

    36420937356_f75b80eb15_o.jpg

    And glued the new baffle on with a face board too;

    36420937296_ee25f841c8_o.jpg

    That carbon fiber is sexy. Used one of those auto sound "bar grilles" so I won't have rattles like the old perf metal one made, and here it is back home in the rafters;

    36420937366_cce63ccb51_o.jpg

    Onward and upward - :)
     
    Denton and Jack like this.
  5. Carl V

    Carl V Well-Known Member Donor War Zone Member Top Poster

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    looking good
    That is a nice driver
    A certain Tennessee High End Speaker Mfg.,
    egglestonWorks Such as his SAVOY,
    uses that line of drivers often in an isobaric
    configuration...Mids too!

    I see some Adire 10.1 HE in the rafters as well.
    Didn't swap out the tweeter & XO?
     
  6. Mike B

    Mike B Well-Known Member Donor War Zone Member Top Poster

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    It sounds good. A little less sensitive than the quattro, a little smoother. Now that the weather is getting cooler I'm going to be out there more. Gotta get rid of 1 motorcycle and put the pinball machine in there. That Alpine head unit sounds better than the Pioneer.
     
  7. Mike B

    Mike B Well-Known Member Donor War Zone Member Top Poster

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    Going back to bi-amp. Gonna put the 8 watt Elekit out there too for the tweeters. Ordered up 2 of these set to 2500 Hz.
     
  8. Carl V

    Carl V Well-Known Member Donor War Zone Member Top Poster

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    I assume you are still running 10" beta Coaxials,
    where was the original XO point. I can't recall the
    Dan Wiggins design. I thought it was asymmetric
    with Higher order after the acoustic & Passive parts
    were summed. and you have a different Tweeter...
    Selenium? I ran mine with a Marchand XO or SNELL to off load
    the Bass at 80HZ but never active higher up like you are
    contemplating.
     
  9. Mike B

    Mike B Well-Known Member Donor War Zone Member Top Poster

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    Active sounded good and I have a "extra" amplifier here just taking up space. Still using a sub for <63Hz. Yes, still the Beta 10's, but I changed the tweeters again to PRV with polyimide diaphrams. Sound better than the titanium Selenium's I was using.

    So the Alpine sends the under 63 Hz stuff to the sub and now the smoother tweeters will be driven with a sweeter amplifier, the Elekit TU-879S, now discontinued.
     

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