from $2,799.99
MartinLogan Grotto 15-inch Subwoofer in Gloss Black incorporates a 15-inch driver engineered for significant low-frequency output. It features an integrated amplifier providing 2000W peak power and 1000W continuous output.
Bigger isn't always better; match the subwoofer size and power to your room volume. Ported subs are better for movies, while sealed subs are tighter for music. Available from $2,799.99.
Active subwoofers draw power constantly if left on, but auto-standby features minimize this. They require almost no maintenance other than dusting.
Common Failure Modes
Plate amplifiers fail more often than the driver itself due to heat and vibration. Surround foam can rot after many years of use.
Bigger isn't always better; match the subwoofer size and power to your room volume. Ported subs are better for movies, while sealed subs are tighter for music.
Subwoofers last 10-20 years. The foam surround on the driver is the first part to rot.
The MartinLogan Grotto 15-inch Subwoofer is available at abt, starting at $2,799.99.
Active subwoofers draw power constantly if left on, but auto-standby features minimize this. They require almost no maintenance other than dusting.
See all Subwoofers
Compare the full selection with specs and pricing.
Links may earn Covala Shopping a commission at no extra cost to you. Prices last verified at time of page load. As an Amazon Associate, Covala Shopping earns from qualifying purchases.
