[Harp-L] 8 ohm or 16 ohm speaker load question

Christopher bluzeharp@xxxxx
Thu Jun 25 13:50:45 EDT 2020

A pair of 8 ohm speakers in parallel = 4 ohms.  The same 2 speakers in series = 16 ohms.  
The best way for these 2 speakers to work with the amp you described is to rewire the speakers in series, and then use the 16 ohm output on the amp, it's an easy switch.  Some amps can safely tolerate a 4 ohm load on their 8 ohm output, but you might kill it quickly, or over time, if you do this with an amp that can't handle the mismatch.  Bad things could happen quickly you connect a 16 ohm output to this 4 ohm load.  In case you're not 100 percent sure of the actual speaker load, it's easy to verify with a simple ohm meter across the plus and minus terminals at the speaker cabinet connector.  Also, the load might not be exactly 4, 8, or 16 ohms, just use the closest figure, i.e. 7 or 9 ohms can usually be regarded as an 8 ohm load.
A duo of 50 watt speakers might not be a great match for a 15 or 30 watt amp, but it shouldn't hurt the amp to use them, assuming you get the load matched up.

Give me a call if you have more questions. 
Christopher Richards (up in Greeley), you already have my number.www.harmonicaplanet.com

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