Amp Impediance Question |
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May 27 2009, 11:59 AM
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QUOTE (Compound9 @ May 27 2009, 09:24 AM)  oh yeah, i understand that, but say your amp is built for 16, 8, and 4ohms. and your speaker could play 16, 8, and 4ohms. which would be the better one to choose? whats the difference? Speaker cannot accept all three loads: 16, 8 or 4 Ohms, speakers have fixed impedance value - it's 16 or 8 or 4Ohms for the speaker. Cabinets on the other hand can often have a feature to switch between loads. Here's a useful article on impedance and voltage: http://www.prestonelectronics.com/audio/Impedance.htm This post has been edited by Ivan Milenkovic: May 27 2009, 12:00 PM -------------------- - Ivan's Video Chat Lesson Notes HERE
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May 27 2009, 04:31 PM
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QUOTE (Ivan Milenkovic @ May 27 2009, 10:59 AM) Speaker cannot accept all three loads: 16, 8 or 4 Ohms, speakers have fixed impedance value - it's 16 or 8 or 4Ohms for the speaker. Cabinets on the other hand can often have a feature to switch between loads. Here's a useful article on impedance and voltage: http://www.prestonelectronics.com/audio/Impedance.htm thanks for the article, it was a good read, quite technical. so am i to understand that there is no difference in tone or volume between the different impediance options?? :s |
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May 28 2009, 07:54 AM
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QUOTE (ZakkWylde @ May 27 2009, 05:58 PM) After what I heard it's best to run the amp on the highet impedance it offers - the higher the impedance the lower the stress for the tubes and stuff. I run my amp with the 16 ohms out into the 160hms in of my cab to get the longest life out of my amp... Speaking strictly volume, low impedance speakers will absorb the most current and thus be driven the most. However, this will put a huge stress on your amplifier. You will never see an amp built for 1 impedance speakers (Never may be excessive; IDK.) However, having a too high impedance will cut the current by too much, and then you would need a speaker with matching needs, meaning, less power less volume. Basically the best solution is 'in between'. "Since it's very hard to know and understand the implications of the impedance characteristics of a speaker, and because you never know what the future may bring, your best bet is to get a receiver or amplifier that is capable of driving a 4-Ohm load. It will cost you more but it will be the better long-term investment. When shopping for an amp or receiver, do your homework. No impulse purchases please." http://www.hometoys.com/htinews/feb04/arti...k/impedence.htm This post has been edited by kjutte: May 28 2009, 08:14 AM |
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May 28 2009, 09:29 AM
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QUOTE (Compound9 @ May 27 2009, 05:31 PM) thanks for the article, it was a good read, quite technical. so am i to understand that there is no difference in tone or volume between the different impediance options?? :s As long as you match the impedance at amp with that on the cab/speaker it will be OK. -------------------- - Ivan's Video Chat Lesson Notes HERE
- Check out my GMC Profile and Lessons - (Please subscribe to my) YouTube Official Channel - Let's be connected through ! Facebook! :) |
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May 28 2009, 10:09 AM
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QUOTE (Ivan Milenkovic @ May 28 2009, 10:29 AM) As long as you match the impedance at amp with that on the cab/speaker it will be OK. +1 |
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