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Chip and speaker compatibility


Chrisr40
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Hello all, a quick question if I may. I have a soundtraxx econami chip with amp rated at 8 ohm 2 watt. I would like to use a rail exclusive baby boomer speaker with it because they sound great. The speaker is rated at 8 ohm but only 1 watt. Does this mean the amp of the chip is going to over drive the speaker. Apologies for my ignorance, all advice gratefully received.

Chris

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If you run it at high volume you risk blowing the speaker.

 

If you are lucky, the speaker will fail as an open circuit and no harm should be done to the decoder but if it fails as a short circuit the decoder will almost certainly be damaged.

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6 minutes ago, charliepetty said:

On the Baby Boomer, swap the wires around on one of the speakers to make it run in series, thus keeping it at 8Ohms.

Please explain.

How can swapping the speaker wires around change the impedance?

If you have two speakers.

parallel:

 

parallel.jpg.f2ea87d0a382e29857f471c5e90925a5.jpg

 

Series:

series.jpg.a400e9a65b9592201e1d6df2f4997178.jpg

 

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A speaker at 8Ohms or 16 Ohms will not exceed the 8Ohm rating of the output on the decoder if it is 8Ohms, leaving the Baby Boomer as it is, makes it a 4Ohms speaker,  thus twice as high as the 8Ohm output.

 

This will cause issues, but 16 Ohms will be ok.

Edited by charliepetty
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13 hours ago, charliepetty said:

On the Baby Boomer, swap the wires around on one of the speakers to make it run in series, thus keeping it at 8Ohms.

 

Charlie-Legomanbiffo

Hello Charlie, I was only planning to use the one speaker.

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11 hours ago, charliepetty said:

leaving the Baby Boomer as it is, makes it a 4Ohms speaker

According to the spiel, the Baby Boomer is a single 8 ohm speaker.

The Boom Box range are two in parallel, which are 4 ohms.

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