See all parts that fit your 1987 Quantum
420 Watts Max Power Monoblock Amplifier • 150 Watts RMS x 1 Chan. @ 4 Ohm • 300 Watts RMS x 1 Chan. @ 2 Ohm • Frequency Response: 20 Hz - 200 Hz • Signal to Noise Ratio: 100dB
Learn more about the thunder421d
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
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900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers
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360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
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600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
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480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
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280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers
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600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers
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Infinity Reference REF6532IXAM
360W Peak (120W RMS) 6.5" Reference Series 2 Way Coaxial 3-ohm Speakers
$119.95
List price $149.95
420 Watts Max Power Monoblock Amplifier • 150 Watts RMS x 1 Chan. @ 4 Ohm • 300 Watts RMS x 1 Chan. @ 2 Ohm • Frequency Response: 20 Hz - 200 Hz • Signal to Noise Ratio: 100dB
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Manufacturer:
Model Number:
THUNDER421D
Weight:
9.00lbs
Internal SKU:
thunder421d
Internal Product ID:
6276
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not too bad
Purchased and installed with a Diamond Audio 12" D4 sub and it hits pretty hard. makes my back window vibrate with about 1/4" flex. provides a good thump that can turn heads.
4 found this helpful
Underrated Amp
I have this in my sister's car running an Alpine 12 inch type R. i have a feeling this amp makes more power than its rated for. it makes the sub pound and with good quality.
3 found this helpful
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NAV-TV NTV-KIT440 + Free $100 Visa Gift Card
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
