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Chip Amps Amplifiers based on integrated circuits

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Old 1st November 2003, 12:47 AM   #1
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Default Active speakers.

I am looking at building a pair of mono gainclones and installing them inside my speaker cabinets to provide separate power for the woofers in a pair of three ways. Is there any reason not to do this? I am building a pair of 300b monoblocks but feel that they may struggle with driving 3 way speakers. Also where should i go shopping for parts to build these?

Appreciate any help for a first time builder.
Steve.
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Old 1st November 2003, 02:01 AM   #2
JCoffey is offline JCoffey  United States
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They have a prebuilt module by alisis for $50 that has 2 chips per module
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Old 2nd November 2003, 08:14 AM   #3
Nuuk is offline Nuuk  United Kingdom
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Personally, I don't like putting electronic circuits inside speaker cabinets. Much better to have them as close as possible but outside the cabinet to minimise any unwanted vibrations.
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Old 2nd November 2003, 11:13 AM   #4
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Originally posted by Nuuk
Personally, I don't like putting electronic circuits inside speaker cabinets.
what is exactly where pro audio is moving. Not that it is superior or better.
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Old 2nd November 2003, 12:02 PM   #5
SY is offline SY  United States
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If you're worried about vibration inside the cabinet, consider potting (leave the heatsink free!). I suspect it wouldn't be a real problem, but I'd probably mount mine on the outside, still potted, just to make sure.
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Old 2nd November 2003, 01:16 PM   #6
vic2 is offline vic2  United States
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Probably not a bad idea. Look at Pass' Rushmore. I personally don't feel that the electronics shoild be in such an environment unless vibrations can be dealt with very well. However, it does eliminate all the BS about speaker cables.

Vic
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Old 2nd November 2003, 08:14 PM   #7
JoeBob is online now JoeBob  Canada
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With active speakers you can tailor the amps to those exact speakers and not worry how they'll preform powering different speakers. My current system is an active speaker system and I enjoy it alot.
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Old 3rd November 2003, 06:40 AM   #8
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For active speakers I most often build a compartment on the back that is sealed from the rest of the speakers. So one has to worry much less about vibrations.
The disadvantage is that the gross volume of the speaker will get much larger compared to putting the electronics into the "acoustical environment".

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Charles
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Old 7th November 2003, 08:34 PM   #9
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Thanks to all for the replys. I am going to experiment with various drivers to see what can be accomplished. I`ll post my results later.
Steve.
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