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Help picking between two subs
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<blockquote data-quote="audioholic" data-source="post: 8677610" data-attributes="member: 549629"><p>That is a false statement. A 1ohm speaker is 1ohm at resting position. Meaning you will absolutely see a 1ohm load at various times in the dynamic range the speaker plays. I've addressed this multiple times and nobody ever responds. You acknowledge that impedance rise is frequency based, but then you apply some arbitrary load on the amplifier to decide that everyone needs an amp that is rated for 2-3 times what the speaker is rated for. That is the opposite of understanding that impedance rise is frequency based. Being frequency based means the impedance changes based on cone motion.</p><p></p><p> You refer to (SPL) competitors when discussing clamp ratings. SPL competitors burp at a single frequency their entire system was designed to play, so yes they focus on impedance rise because it is a specific factor if you are only playing a single frequency burp. That research does not apply to daily systems playing multiple octaves of frequencies. Telling someone to buy an oversized amp and then turn the gains down artificially low is great for 'headroom' for people with golden ears, but most people would rather not shell out hundreds of extra dollars for power they will almost never require, and that their charging system would probably not sustain anyway.</p></blockquote><p></p>
[QUOTE="audioholic, post: 8677610, member: 549629"] That is a false statement. A 1ohm speaker is 1ohm at resting position. Meaning you will absolutely see a 1ohm load at various times in the dynamic range the speaker plays. I've addressed this multiple times and nobody ever responds. You acknowledge that impedance rise is frequency based, but then you apply some arbitrary load on the amplifier to decide that everyone needs an amp that is rated for 2-3 times what the speaker is rated for. That is the opposite of understanding that impedance rise is frequency based. Being frequency based means the impedance changes based on cone motion. You refer to (SPL) competitors when discussing clamp ratings. SPL competitors burp at a single frequency their entire system was designed to play, so yes they focus on impedance rise because it is a specific factor if you are only playing a single frequency burp. That research does not apply to daily systems playing multiple octaves of frequencies. Telling someone to buy an oversized amp and then turn the gains down artificially low is great for 'headroom' for people with golden ears, but most people would rather not shell out hundreds of extra dollars for power they will almost never require, and that their charging system would probably not sustain anyway. [/QUOTE]
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