CT Sounds CT-150.4D vs CT Sounds CT-80.4D 4-Channel Amplifier

The CT-150.4D is the stronger amp: roughly double the power per channel, so it drives component speakers and a sub with headroom the CT-80.4D cannot match. Both are Class D, full-range, with LPF, subsonic filter, MOSFET supply and the same four-way protection, and both are compact enough to hide in a trunk or under a seat. Owners rate both highly; the CT-80.4D has more ratings and the CT-150.4D a slightly higher average. Buy the 150.4D if you plan a sub or want clean output at high volume; buy the 80.4D if you are powering four door speakers and want to keep the electrical load and heat low.

• Choose the CT-150.4D if you run a subwoofer or power-hungry components and want clean output with the volume up.
• Choose the CT-80.4D if you are amping four factory-replacement speakers and do not need sub-level power.