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Authorized dealer · Car Audio Bargain
A 5-channel amplifier powers four speakers and a subwoofer from one chassis, with a single set of power, ground and remote connections. Options here include the Audio Apex CAB-M165, the Crossfire C7 2200.5 and Sundown Audio's SAEv4-900.5, SALT-1700.5 and SFB-1800.5, which suit builds where mounting space and wiring runs are tight.
One amp means one power run, one ground, one main fuse and one gain structure to set. It fits under a seat or behind a panel where two separate amps would not, and it keeps the install simpler in trucks, compact cars and daily drivers that need to keep their cargo space. The tradeoff is that the sub channel's power is fixed. If you expect to move up to multiple large subwoofers later, a separate monoblock may be the better long-term plan.
Compare the sub channel's RMS output at its rated load with the RMS rating of your subwoofer, and wire the voice coils to land on that load. A sub that wants much more power than the channel provides will tempt you to push the gain too far.
The four main channels should deliver roughly what your door speakers or component sets are rated for at 4 ohms. Built-in high-pass filters on those channels keep deep bass out of small speakers, which lets them play louder with less distortion.
The CAB-M165 is rated at 1,600 watts RMS. The Crossfire C7 2200.5 and the Sundown SAEv4-900.5, SALT-1700.5 and SFB-1800.5 cover a range of output levels, so read the per-channel chart on each product page against your speakers and sub.
Add subwoofers matched to the sub channel and an amp wiring kit sized for the whole amp's current draw, since all five channels pull from the same wire. For speakers only, compare 4-channel amps, or look at monoblock amps if bass will be the priority. A 5-channel amplifier remains a tidy all-in-one answer for most full systems. Browse more in amplifiers.
Shop Pay InstallmentsPay over time, powered by Affirm
Lease-to-own with SnapNo credit needed¹
Pay later with SezzleFlexible payment options
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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