Authorized dealer · Car Audio Bargain

1,500W to 2,400W Monoblock Amplifiers

This power band bridges daily-driver bass and serious street systems, giving two or more subwoofers real authority without the electrical demands of a competition amp. The 1,500W to 2,400W monoblock amplifiers here include the Audio Apex CAB-22, the Crossfire C7-2K and Sundown Audio's SAEv4-1500.1D, SAEv4-2000.1D, SIA-1750D, SALT-1.5, SALT-2, SAM-1500D and the SAZ-1500 15th Anniversary Edition.

  • 8 products
  • Audio Apex · Crossfire Car Audio · Sundown Audio
  • Free shipping over $250
Back to Amplifiers

8 products

Building Around Mid-Range Power

Two high-excursion 12s or 15s, or a box of smaller subs, is typical territory for an amp in this class. It is also where the electrical system starts to matter. The bass you hear depends on stable voltage at the amp, and a factory alternator that kept up with a smaller amp may struggle once you step up to 1,500W to 2,400W of output.

How to Choose in This Band

Rated load matters most

Most mono amps in this range quote their headline number at 1 ohm. If your subs wire to 2 ohms instead, expect noticeably less output, so check the full RMS chart before buying. Choose the subs and wiring plan first, then select the amp that matches.

Electrical upgrades to plan for

Many builds at this level add a Big 3 upgrade, a full run of 1/0 AWG power wire and a stronger primary or secondary battery from our battery selection. Watch voltage while playing music; sustained dips well below about 12.5 volts suggest the system needs more support.

Choosing a series

  • Sundown SAEv4-1500.1D and SAEv4-2000.1D: straightforward daily-system amps.
  • Sundown SIA-1750D, SALT-1.5, SALT-2 and SAZ-1500: higher-end Sundown designs for builds that will be pushed hard.
  • Sundown SAM-1500D: a mono option built for powersports use.
  • Audio Apex CAB-22 and Crossfire C7-2K: rated at 2,200 and 2,000 watts RMS respectively.

Next Steps

Before choosing among the 1,500W to 2,400W options, confirm the subs, the enclosure and the wiring plan. If this is more power than your subs need, compare monoblock amplifiers under 1,500W. Bigger walls may call for the 2,500W to 3,400W band. Speaker amps and the rest of the lineup live in amplifiers.