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Question about reading schematics

post #1 of 5
2/12/11 at 8:23pm
Thread Starter 

 

I am looking to get into speaker building soon now that I found a good cheap amp (Marantz 2220B). 

Turns out a lot of the fullrange driver speakers "require" a filter to compensate for the bass, or lack of which. I am not quite confident in my ability to read schematics. So, I need help. 

 

For example, the schematic below. What would the layout look like? Would it be the amp line to the capacitor to resistor to the inductor? Or would the amp line need to be spliced to go to all three? I know this may seem like an absurd question but I just need some clarification.

 

 

 

salbipnotch.jpg

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post #2 of 5
2/12/11 at 8:32pm

The amp would be connected to all three components, and then all three components tie into the speaker connection. This is called a parallel circuit. Generally in most diagrams a dot on a wire indicates that there is a connection at that point. This is a simple RLC circuit and can be described by a second order differential equation. I would recommend you do some reading on wikipedia or some other source on what the circuit does before you actually use it.

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post #3 of 5
2/12/11 at 8:42pm
Thread Starter 

How would one go by connecting the the three components, hypothetically? Would you splice the line from the amp into three separate lines? 

I understand I have a long way to go before I understand much about electronics so I will be sure to read up on some stuff before I do in fact build a pair of speakers myself. 

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post #4 of 5
2/12/11 at 9:23pm

There are many ways to do it, some can be more permanent than others. If you just want to give something a try, you might want to consider using a terminal strip, something like this: http://www.radioshack.com/product/index.jsp?productId=2103232&CAWELAID=107595253. It has a number of connections, and connections across from each other are shorted together. So you could have the amp connection screwed into one terminal and the three components connected to the opposite side if there is room. Or if the components are big you can run a wire to from the amp terminal to some other terminals and each component could have its own connection. Alternatively you could use a breadboard. Breadboards/perf boards generally have a row of holes connected, maybe four or five. Each component would connect to a hole in that row. Still another way would be to do as you say and splice the line and air wire the connection. As you can see there are a lot of ways you can accomplish the same task.

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post #5 of 5
2/12/11 at 9:34pm
Thread Starter 

I think the bread board seems to be the best approach. Thank you for the explanation. For some odd reason I thought it was more complicated than that. Thanks again. 

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