Unless you need more level than the Maggies can provide, forget the upgrade and get a pair of powered subwoofers.
I replaced my single Force w 2x Martin Logan 800x. I am a fan of a gently 6db roll-off on the mains with a 18db roll-off in the sub. The ML have a most flexible control system that allows near perfect integration.
The 800x were later well reviewed on Stereophile. https://www.stereophile.com/content/martinlogan-dynamo-800x-powered-subwoofer
While there are many subs, very few have the required adjustability to properly integrate.
Requirements:
• Continuous Phase Control
• Phase Invert
• Multi Slope XO Frequency
• Down Firing
• Sealed
• Independent Music and LFE Inputs
There is a cell phone app that makes integration a doddle. Add the Perfect Bass Kit and the subs can be perfectly set up in a couple of hours using REW and/or the ML Anthem utility.
For more info about integrating subs see http://ielogical.com/Audio/SubTerrBlues.php and my install http://ielogical.com/Audio/#DoubleDouble
The ONLY negative I have found is the subs are light. Easily solved http://ielogical.com/assets/Audio/SubWeight.jpg
PM for assistance on creating a simple XO for the mains. http://ielogical.com/Audio/#SmallestThings
An articulate, extended and veracious low end adds realism out of all proportion to the numbers.
I replaced my single Force w 2x Martin Logan 800x. I am a fan of a gently 6db roll-off on the mains with a 18db roll-off in the sub. The ML have a most flexible control system that allows near perfect integration.
The 800x were later well reviewed on Stereophile. https://www.stereophile.com/content/martinlogan-dynamo-800x-powered-subwoofer
While there are many subs, very few have the required adjustability to properly integrate.
Requirements:
• Continuous Phase Control
• Phase Invert
• Multi Slope XO Frequency
• Down Firing
• Sealed
• Independent Music and LFE Inputs
There is a cell phone app that makes integration a doddle. Add the Perfect Bass Kit and the subs can be perfectly set up in a couple of hours using REW and/or the ML Anthem utility.
For more info about integrating subs see http://ielogical.com/Audio/SubTerrBlues.php and my install http://ielogical.com/Audio/#DoubleDouble
The ONLY negative I have found is the subs are light. Easily solved http://ielogical.com/assets/Audio/SubWeight.jpg
PM for assistance on creating a simple XO for the mains. http://ielogical.com/Audio/#SmallestThings
An articulate, extended and veracious low end adds realism out of all proportion to the numbers.