Turntable and cartridge setup known for a marvelous bottom end.

The Monitor Audio Gold 300's may say they go down to 30hz, but the specs say the do that at -6Db.  Loudness drops off by half for every 3Db reduction, so you're down to 25% of the volume of the higher frequencies at that point.  And you'd have to see the curve to see how far down it is at 50Hz.

There is really no speaker on earth - unless it includes a powered sub in it - that truly gives you all the bass.

You need a sub(s) and it doesn't matter a lot where you put it.  Your ears can't localize frequencies that low.  You might be able to put it beside you or behind you.

And as MillerCarbon notes, using multiple subs makes the placement irrelevant.

Here is a huge problem for you, 16 by 16 foot room, and even worse if the room has an 8 foot ceiling.

Socalml528. I am taking your advice. I'll pick up the subpaltter upgrade.

Never was a fan of the cheaper Pro-Ject turntables, but looking at a review of the new Pro-Ject Debut Pro makes me think this is a real winner at the entry level.

Some of the best MM cartridges from the dolgen age of analog can reproduce bass from 5Hz, I doubt there is anything like that on the record, but if you will look at the specs of the Audio-Technica AT-ML170 or 180 you will see frequency response of those marvelous cartridges: 5Hz - 42k Hz for AT-ML180 and 5Hz - 40kHz for AT-ML170. Those cartridges are spectacular.

Anyway, if you have bass issues you have to studdy room acoustics, it depends on your room size and position of your speakers (and your listening position). Do not change any gear until you will find a sweet spot in your room with your speakers. Various methods published online.