Tight bass sub recommendations


What are the recommendations for a high quality subwoofer set- up. I have Maggie’s 1.7I speakers which I love but I think could use a little sub energy. Most of what I have tested seems a little boomy. I know there are 2 schools of thought 1 sub or 2 subs. I’m just looking for a deep Tight bass. Thoughts???
schmitty1
I would recommend that you take a listen to the newest iteration of the MartinLogan Dynamo subs.  I am using a pair of the Dynamo 1100X's with my Magneplanar 3.7i's and they integrate very well.  They have the advantage of Anthem Room Correction built in.  As well, all of the settings can be changed from the listening position with an app that will run on an iOS or Android device.  In my system the Dynamos replaced a pair of REL T-9's.

LarryRS
I'm happy with using just one B&W ASW825,  which has an ultra-rigid. Rohacell® sandwich cone at 12 inches.  At one point,  I had 2 of them,  but ended up deciding to use the second one for my little recording studio and just one for my stereo.  It's a non-ported design and sounds nice and tight,  much quicker than it's bigger brother,  the ASW855,  which uses a 15" driver.
bwgroupsupport.com/downloads/specsheets/bw/ASW825%20InfoSheet.pdf
I have Magnapan 3.7s.  I use two REL G2.  Great match.  The REL was the first sub I had heard that has the speed to work with panels.  
Just my $0.02
If you are looking to keep your 1.7i for a while then I would concur with those who suggest making the investment in a pair of RELs.

It will not only deliver clean tight bass, it will also enhance your overall lower mid range by revealing more depth and texture within  your sound stage. 

I was looking to invest in a new pair of speakers a few years ago. I changed my view on how I was looking to achieve my goal of obtaining better sound. It was then that I realized that I could better than accomplish my goals if I invested in a pair of Subs. 

I looked at JL as well but found that the Rels were more Musical - especially using the  Neutrik SpeakOn connectors at the High Level input to the sub bass system. Although REL makes these cables, Three are a couple of other companies that make upgraded versions. 

I still have my Speakers and REL's and have no plans on upgrades..

If you go on the website there is a speaker - sub pairing section. They recommend the T-9I for your 1.7I.

Good Luck