MartinLogan has impressed us with their subwoofers in our recent reviews of the
Dynamo 12 and
Abyss 10. The new refresh of the Dynamo and Abyss series was greatly improved over their predecessor subwoofer lines. Now, MartinLogan looks to be giving the same treatment to their Grotto series, which last used that name in 2007 with the Grotto i. However, MartinLogan is taking the Grotto name way past the caliber of subwoofers that the older Grotto subs were. The older Grotto subs were sealed 10” models with 250 to 300 watt amplifiers. The new Grotto subs have a 12” driver and a 15” driver, with both drivers loading dual passive radiators. What is more is that these new models are powered by a 1,000-watt RMS amplifier. Those are some monster specs that make the older Grotto subs seem quaint by comparison. Read our preview to learn more about MartinLogan's new Grotto subwoofer series!
READ: MartinLogan Grotto 12 and Grotto 15 Subwoofer Preview
