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Googling my questions does not give me clear answers...probably a 3 min answer from someone with skills...
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<blockquote data-quote="Kube1989" data-source="post: 8729622" data-attributes="member: 681895"><p>Hi-</p><p>I'm new....my son has a 78 Cordoba with a new (but cheap) head unit. Speakers are original and floating ground system and truly sounds awful- so I want to replace speakers.</p><p>Front has 3.5" on dash, Rear is 6 x 9s. want to add 5ch amp and sub in trunk and allow for EQ in future.</p><p></p><p>Looking at:</p><p><span style="font-size: 15px"><strong>• Planet Audio AC1800.5 5 Channel Car Amplifier - 1800 Watts, Full Range, Class A/B, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable</strong></span></p><p><span style="font-size: 15px"><strong>(</strong></span>Power - 300 watts max x 4 @2-Ohms plus 5th channel 600 watts max x 1 @2-Ohms, 150 watts max x 4 @4-Ohms</p><p>plus 5th channel 300 watts max x 1 @-4-Ohms, 600 watts max x 2 bridged @4 Ohms)</p><p></p><p><span style="font-size: 15px"><strong>• a pair of 4 ohm, 200RMS/400 max 6x9s for rear</strong></span></p><p><span style="font-size: 15px"><strong><strong>• a pair of 4 ohm, 120RMS/300 max 3.5 for front</strong></strong></span></p><p><span style="font-size: 15px"><strong><strong>• 4 ohm <span style="font-size: 15px"><strong>Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>I planned on taking the single pair of RCA out of head and splitting them so I get 4 sends to amp. (also allowing for easy EQ addition later)</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>Using the amp's 5th channel selector to take MIX of Ch1-4 for sub input.</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>Questions are:</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>1. Are those speaker ratings OK for that amp? (I have seen too much conflicting info to understand whether spkr or amp need to have more wattage)</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>2. I understand the power for amp should not run with the signal send from head to amp- but can the sends run with the spkr returns to front? </strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>I've only got 2 sides of the car for running wires...how would a professional split them up?</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>3. Does the amp magically know what ohmage the spkrs are? I do not see a selector switch on amp for 2 vs 4 ohms...</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong> I'm guessing it can sense the impedance and pushes wattage accordingly?</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>If anyone has suggestions of what would work better with the amp or vice-versa- I'm all ears...</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>(BTW... his budget is under $500 for total project)</strong></span></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong></strong></strong></span></p><p><span style="font-size: 15px"><strong><strong><span style="font-size: 15px"><strong>I appreciate any and all help, in advance! Thanks</strong></span></strong></strong></span></p></blockquote><p></p>
[QUOTE="Kube1989, post: 8729622, member: 681895"] Hi- I'm new....my son has a 78 Cordoba with a new (but cheap) head unit. Speakers are original and floating ground system and truly sounds awful- so I want to replace speakers. Front has 3.5" on dash, Rear is 6 x 9s. want to add 5ch amp and sub in trunk and allow for EQ in future. Looking at: [SIZE=4][B]• Planet Audio AC1800.5 5 Channel Car Amplifier - 1800 Watts, Full Range, Class A/B, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable ([/B][/SIZE]Power - 300 watts max x 4 @2-Ohms plus 5th channel 600 watts max x 1 @2-Ohms, 150 watts max x 4 @4-Ohms plus 5th channel 300 watts max x 1 @-4-Ohms, 600 watts max x 2 bridged @4 Ohms) [SIZE=4][B]• a pair of 4 ohm, 200RMS/400 max 6x9s for rear [B]• a pair of 4 ohm, 120RMS/300 max 3.5 for front • 4 ohm [SIZE=4][B]Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube[/B][/SIZE] [SIZE=4][B]I planned on taking the single pair of RCA out of head and splitting them so I get 4 sends to amp. (also allowing for easy EQ addition later)[/B][/SIZE] [SIZE=4][B]Using the amp's 5th channel selector to take MIX of Ch1-4 for sub input.[/B][/SIZE] [SIZE=4][B]Questions are:[/B][/SIZE] [SIZE=4][B]1. Are those speaker ratings OK for that amp? (I have seen too much conflicting info to understand whether spkr or amp need to have more wattage)[/B][/SIZE] [SIZE=4][B]2. I understand the power for amp should not run with the signal send from head to amp- but can the sends run with the spkr returns to front? [/B][/SIZE] [SIZE=4][B]I've only got 2 sides of the car for running wires...how would a professional split them up?[/B][/SIZE] [SIZE=4][B]3. Does the amp magically know what ohmage the spkrs are? I do not see a selector switch on amp for 2 vs 4 ohms...[/B][/SIZE] [SIZE=4][B] I'm guessing it can sense the impedance and pushes wattage accordingly?[/B][/SIZE] [SIZE=4][B]If anyone has suggestions of what would work better with the amp or vice-versa- I'm all ears...[/B][/SIZE] [SIZE=4][B](BTW... his budget is under $500 for total project)[/B][/SIZE] [SIZE=4][B]I appreciate any and all help, in advance! Thanks[/B][/SIZE][/B][/B][/SIZE] [/QUOTE]
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Googling my questions does not give me clear answers...probably a 3 min answer from someone with skills...
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