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Authorized dealer · Car Audio Bargain
A 4-channel amplifier is the usual way to power front and rear door speakers with real headroom, or to run a front stage while bridging the other pair to a subwoofer. Choose from Sundown Audio SAEv4, SALT, SFB and SAM models, Crossfire C5, C7 and CFM amps, and a Galeforce option, all from an authorized dealer.
Look at the RMS rating per channel at 4 ohms if you are running typical car speakers, and at 2 ohms if your speakers or wiring present that load. Aim for an amp that delivers around the speakers' RMS rating per channel. Too little power invites clipping when you turn it up; reasonable headroom keeps highs smooth and lets midbass hit without strain.
The Sundown SAEv4-100.4, SAEv4-150.4 and SAEv4-200.4 suit factory speaker replacements and modest component sets. The SALT-200.4, SALT-500.4, SFB-200.4, SFB-500.4 and SFB-1000.4 step into higher-output builds. Crossfire offers the C5-400-4, C5-800-4, C7-2000-4 and CFM 800.4, and the SAM-100.4 adds Bluetooth for powersports use. Higher model numbers within a line generally indicate more output, so confirm the RMS chart on each product page.
Pick speakers rated for the power you plan to send, and run quality RCAs away from the power wire to keep noise out. If you want a sub channel in the same box, compare 5-channel amps; for a single pair of speakers, 2-channel amps may be enough. A 4-channel amplifier still leaves room for a separate monoblock later. See every option in amplifiers.
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Shop Pay Installments: Rates from 0-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. Snap: The advertised service is a lease-to-own agreement provided by Snap RTO LLC. Lease-to-own financing is not available to residents of Minnesota, New Jersey, and Wisconsin. ¹ Not all applicants are approved. While no credit history is required, Snap obtains information from consumer reporting agencies in connection with submitted applications, and your score with those agencies may be affected. Sezzle: Issued by WebBank or Sezzle. See loan agreement for details. Refurbished items are not eligible for financing or leasing.
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