We'll take your mono or stereo mix and print it via our Solid Stage Logic 4000 g/g+ analog console into our Studer a80 1/4" analog tape machine at 15 i.p.s. (or 7.5 i.p.s if requested)  
 
We find this often helps improve drum & bass sounds, making everything sound thicker, punchier and more cohesive. It usually helps to achieve a more "complete" feeling sonically.