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Parallel wiring for higher SPL
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<blockquote data-quote="shizzzon" data-source="post: 8332653" data-attributes="member: 590338"><p>Sorry, but even though his assumption is WAY Wrong, i decided to watch the video and had to stop it after he said the following-</p><p></p><p>5000w @1ohm is 100v and 50a.</p><p></p><p>Clearly whoever Showtime is does not know Ohm's law.</p><p></p><p>So, let me explain how this works-</p><p></p><p>Apparently, wiring in parallel instead of series is better (even to get same impedance).</p><p></p><p>Cliff notes for people who are annoyed by Showtime SPL, or are too lazy to watch the video:</p><p></p><p>"<strong>Amp: 5000w RMS (50 amps and 100 volts)-</strong> "</p><p></p><p>No it doesn't. That violates Ohm's Law.</p><p></p><p>5000w @1ohm is 70.7v and 70.7a</p><p></p><p>"<strong>Example A) dual .5 coil wired in series to 1 ohm: each coil gets 50 amps and 50 volts</strong>"</p><p></p><p>No it doesn't. That violates Ohms Law.</p><p></p><p>Each COIL will receive 70.7a and 35.35v.</p><p></p><p>"<strong>Example B) dual 2 coil wired in parallel to 1 ohm: each coil gets 25 amps and 100 volts</strong>"</p><p></p><p>No it doesn't. That violates Ohm's Law.</p><p></p><p>Each COIL will receive 70.7v and 35.35a.</p><p></p><p>"<strong>Both receive an equal amount of wattage.</strong>"</p><p></p><p>This is the ONLY thing correct stated.</p><p></p><p>"<strong>In example A, each coil receives more current,</strong>"</p><p></p><p>No it doesn't. That violates Ohm's Law.</p><p></p><p>Each coil receives the same current.</p><p></p><p>"<strong>which builds more heat. The higher heat reduces the efficiency of the voice coil.</strong>"</p><p></p><p>That would be true if it received more current but false in this fake scenario.</p><p></p><p>I'll show you a very simply analogy of how Showtime has no idea what they are talking about.</p><p></p><p>Take 10 batteries and series them all together.</p><p></p><p>What do you get?</p><p></p><p>Assuming each is 13.1v, you'd get 131v.</p><p></p><p>Now, let's say we were going to output 100A of current out of EACH battery IF they were in parallel.</p><p></p><p>In parallel, that's 10 batts at 13.1v each at 100A per batt.</p><p></p><p>So, that would be 13.1v and 1000A.</p><p></p><p>What is that in wattage?</p><p></p><p>13.1v x 1000A = 13,100w</p><p></p><p>Now, let's go in series-</p><p></p><p>131v</p><p></p><p>Well, how many amps will all 10 batteries put out?</p><p></p><p>100 AMPS ONLY!</p><p></p><p>Why?</p><p></p><p>131v x 100= 13,100w.</p><p></p><p>Current does NOT change in series.</p><p></p><p>Going by their understanding, they are expecting to PHYSICALLY gain energy by changing the wiring configuration to the same resistance.</p><p></p><p>That not only violates Ohm's Law but also the first and perhaps the second Law of Thermodynamics.</p><p></p><p>Misinformation sure does come from "trusted sources" nowadays it seems, smh..</p></blockquote><p></p>
[QUOTE="shizzzon, post: 8332653, member: 590338"] Sorry, but even though his assumption is WAY Wrong, i decided to watch the video and had to stop it after he said the following- 5000w @1ohm is 100v and 50a. Clearly whoever Showtime is does not know Ohm's law. So, let me explain how this works- Apparently, wiring in parallel instead of series is better (even to get same impedance). Cliff notes for people who are annoyed by Showtime SPL, or are too lazy to watch the video: "[B]Amp: 5000w RMS (50 amps and 100 volts)-[/B] " No it doesn't. That violates Ohm's Law. 5000w @1ohm is 70.7v and 70.7a "[B]Example A) dual .5 coil wired in series to 1 ohm: each coil gets 50 amps and 50 volts[/B]" No it doesn't. That violates Ohms Law. Each COIL will receive 70.7a and 35.35v. "[B]Example B) dual 2 coil wired in parallel to 1 ohm: each coil gets 25 amps and 100 volts[/B]" No it doesn't. That violates Ohm's Law. Each COIL will receive 70.7v and 35.35a. "[B]Both receive an equal amount of wattage.[/B]" This is the ONLY thing correct stated. "[B]In example A, each coil receives more current,[/B]" No it doesn't. That violates Ohm's Law. Each coil receives the same current. "[B]which builds more heat. The higher heat reduces the efficiency of the voice coil.[/B]" That would be true if it received more current but false in this fake scenario. I'll show you a very simply analogy of how Showtime has no idea what they are talking about. Take 10 batteries and series them all together. What do you get? Assuming each is 13.1v, you'd get 131v. Now, let's say we were going to output 100A of current out of EACH battery IF they were in parallel. In parallel, that's 10 batts at 13.1v each at 100A per batt. So, that would be 13.1v and 1000A. What is that in wattage? 13.1v x 1000A = 13,100w Now, let's go in series- 131v Well, how many amps will all 10 batteries put out? 100 AMPS ONLY! Why? 131v x 100= 13,100w. Current does NOT change in series. Going by their understanding, they are expecting to PHYSICALLY gain energy by changing the wiring configuration to the same resistance. That not only violates Ohm's Law but also the first and perhaps the second Law of Thermodynamics. Misinformation sure does come from "trusted sources" nowadays it seems, smh.. [/QUOTE]
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