NOOB! Thinking of building a 4 ch 3875 amp - questions..
Just a bit of background. My electronics knowledge is limited to having built passive crossovers and replacing frazzled components so forgive me if these are really silly questions please.
I want to build a 4 ch amp to drive a set of bi-wireable speakers I'm building (8 Ohm or thereabouts) so the 3875 kit from madaboutsound.com looks like a good bet because all I have to do is soldering and case it up which I won't have a problem with.
I want to use 2 dual mono kits with 2 seperate transformers in a 2U 19" rackmount case.
My questions are...
Can I use a single set of inputs and connect them to the imputs of both amp kits or do I have to have 2 sets of inputs?
If I do have to have 2 sets of inputs, is there anywhere that does a pre-amp kit with dual pre-outs? Just a basic one with 5 inputs and no phono stage will be fine.
Sorry again if thse are really silly questions.
I have found a preamp with dual pre-outs. :)
I have done exactly what you are planning. You can check out mine in these forums. There is some good pics which should inspire you.
Or Click here
Nice job :)
That looks fab.
That's a lot more complex than what I was planning, I like the idea of adding speaker protection - it there a kit speaker protection module kit available? If I tried to build one from a diagram it would probably end up receiving radio 1 or something instead ;)
Glad u liked my amp. If you visit here you will find a speaker protection kit, actually you should be able to find plenty to suit your needs. As the site is here in Australia, the postage might be a bit expensive with the exchange rate and such.
Might be worth looking into, see how ya go.
In have had a search around and come up with this.
If seems to offer protection against various things and also soft start so it seems ideal. Lets hope it sounds OK. :)
Managed to resist the urge to buy LED VU meters too :D
Quickshift, if you have any more questions, you may find them answered on the Gainclone pages at Decibel Dungeon! ;)
I have looked at that site and a few others over the last few weeks, I didn't really understand much of them though :D
I promise I have tried to answer my questions myself, like I say, I'm new to all this I'm afraid.
Anyway, I think I have all the info I need to lob something together now albeit merely assembled from kits. :)
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