SALT-6

The SALT-6 is a competition-level Class D monoblock rated at 6000W x 1 at 1 ohm, 3000W x 1 at 2 ohms, and 1500W x 1 at 4 ohms. Strap it to a second SALT-6 and the pair produces 12,000W x 1 at 2 ohms, which puts it in the range of serious SPL builds and multi-sub walls.

SALT stands for Sundown Audio Low-Voltage Technology. The rating is tested at 12.8V with less than 1 percent THD, so the published output reflects a real electrical system rather than a bench at 14V. Operating range is 9V to 15.5V, efficiency is above 90 percent, and the recommended fuse rating is 600A, which tells you what the electrical system needs to support.

Filters are steep and competition oriented: a 24dB variable subsonic filter from 10 Hz to 50 Hz and a 24dB variable low pass filter from 35 Hz to 250 Hz. Variable bass boost at 45 Hz adds up to 9 dB, and phase shift control spans 0 to 180 degrees for timing the bass to the cabin. Frequency response runs 10 Hz to 250 Hz, signal to noise ratio is above 90 dB, and damping factor is above 400.

Onboard indicators cover power, clipping, and protection, with thermal, voltage, speaker short, and DC-offset protection circuitry behind them. The included wired remote displays voltage, temperature, and clipping so you can track the system while it runs hard.

Dimensions are 26.78 by 10.08 by 2.96 inches.