Rack Extensions. It's Propellerhead's name for the Reason internal plug-in format. You get a few when you purchase Reason, you can download one or two for free but the bulk can be discovered by visiting the "Prop Shop".
For a DUB engineer, browsing the Rack Extensions can be, well, time-consuming. After all, most are aimed at the production of EDM ("Electronic Dance Music") and will not really add much to the standard effects and instruments in Reason.
Not so with the T2 Phaser (see picture, click to enlarge). It's the second device created by the small Rack Extension developer "That Music Company", based in San Jose (California, USA) and it truly is an extension to your rack.
First thing that stands out is the price. For about 15 euros, the T2 is yours. That's fifteen euros to de facto replace Reason's standard phaser because as soon as you run the T2 in your set up you'll hear the power in the thing.
It basically has three main sections: Overdrive, Phaser and HPF (Hi-Pass Filter). Overdrive and HPF will add vibes to the main sound the Phaser section produces. You can set waveforms and on top of that, different steps. Pan effects belong to the possibilities too, you can even trigger the T2 by midi notes.
Got Reason? Get the T2. It's that simple. Just download the phaser, you will have thirty days to discover the fully functional device before you will undoubtedly decide to have it permanently in your effect collection.