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Bass cab conversion - adding tweeters


ben_eat_pie
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hi there,

I'm looking to remove the head on my combo, rehouse it, then add tweeters in the big hole.
If people could let me know the best way to go about it that'd be great.
Also if people could recommend some good tweeters to put in the hole and how to mount/house them for the best sound.
If it helps it's an ashdown mag 300/115 combo.
Is it even worth doing?! lol...

cheers guys,

ben

Edited by ben_eat_pie
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[quote name='bass_ferret' post='237621' date='Jul 11 2008, 09:14 PM']Probably not - it will be worth f*** all when you have done it. Sell it and buy something more like what you want.[/quote]

MB1. :)
+Twelvety!
Sell it on!.... and start again!

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[quote name='ben_eat_pie' post='237613' date='Jul 11 2008, 08:59 PM']hi there,

I'm looking to remove the head on my combo, rehouse it, then add tweeters in the big hole.
If people could let me know the best way to go about it that'd be great.
Also if people could recommend some good tweeters to put in the hole and how to mount/house them for the best sound.
If it helps it's an ashdown mag 300/115 combo.
Is it even worth doing?! lol...

cheers guys,

ben[/quote]

I did similar to the same combo. I made a dummy amp that had a front, back and sides that was the same size as the amp chassis from 18mm ply. In the back I fitted a connector plate with teed speakons. I also mounted a 1/4" socket on a bracket inside and wired the speakons to that. The flying lead from the speaker was plugged in to that.

The whole thing was secured using four screws in the original mounting holes so nothing on the cab was hacked about. I'd have posted some piccies but I've sold it now!

It would have been good to fit 2 or 3 piezo tweeters in the dummy front panel. Two or three of CPC's MPT-016 piezos wired in series with each other and a 10-20W 8-ohm resistor to guarantee a minimum load would probably add a bit of zing. These would be wired in parallel with the main driver but a switch would probably be a good addition in the piezo circuit.

I've got 4 of those piezos in my BFM Omni10 but they're aligned vertically which is supposed to be a better layout for dispersion but without an additional box or hacking the MAG cab about would not be feasible. You could put the feet on the side and use the cab "horizontally".

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