A few things:
First, the OP wants to buy an Aqualung Titan NOT a Titan LX Supreme.
Second, if cold water performance is important to the OP, I gave him two links, one to the AT-20 (warm water) and one to the ATX-40 (cold water).
Third, cost seems to be important for the OP. For the price of an Aqualung first and second, the Apeks setups also include an octopus and gauges, so they are a better value.
Fourth, the Apeks is also a time-honored design and can be repaired anywhere the Titan can as Apeks is a sister company to Aqualung. Their second stages also have metal air barrels.
I did not quote you, I simply stated a preference, I like the XTX but that I do not see it different from the Titan LX. And, to your first point, true, he did say Titan, not Titan LX and nor did he say anything about a Apeks XTX-20. I guess if you can recommend a regulator, I should be able to as well. As to pricing, he/she can explore that, both regulators are often priced very well and often are offered with additional items.
I prefer the Titan LX first, old or new type, to the Apeks, though, again, I have nothing against it either, just a preference for gear due to my four decade familiarity with it's first stage innards and AL products in general.
To the OP, I would reconsider the Titan if you indeed meant Titan and look at the Titan LX (and Supreme version) and also look at the Apeks XTX that has been recommended, especially where and if a package regulator is being offered. That could be a deciding factor. I also dive a Titan LX Supreme:
Many people confuse the Titan with the Titan LX or make an assumption it is the LX being discussed, including posters in this thread. I have clarified my position on the Titan LX (and Supreme). So, I will stay with what I said on all accounts.
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