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Infinity Primus 503CF Primus Series 5-1/4" component speaker system - Car Audio

Marsoni M251S
Sale price$647.50
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Infinity Primus 503CF Primus Series 5-1/4" component speaker system - Car AudioInfinity Primus 503CF Primus Series 5 1 4" component speaker system component speaker system includes 2 woofers, 2 tweeters, and 2 external crossovers 5 1 4" Plus One+ polypropylene woofer cone with hi roll rubber surround 3 4" edge driven silk dome tweeter 3 ohm impedance for extra power (compatible with virtually all factory or aftermarket car stereos) handles up to 50 watts RMS (150 watts peak power) frequency response: 75 20,000 Hz sensitivity: 91
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.2 ★★★★★
Based on 1576 reviews
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A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Heavy duty
Size: 125 Pack
Heavy duty
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
J
Verified Purchase
jeannine altemose
Massapequa, US
★★★★★ 4
Not coated
Size: 125 Pack
These plates are good but not coated
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
D
Verified Purchase
Donna M Winslow
Carnegie, US
★★★★★ 5
good
Size: 125 Pack
good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
C
Verified Purchase
Chip
Draper, US
★★★★★ 3
Too expensive. Better deals elsewhere
Size: 125 Pack
The plates are very nice, light weight but way overpriced for the product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
L
Verified Purchase
Leatherneck
Dallas, US
★★★★★ 5
Plates
Size: 125 Pack
They hold up very well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2025

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