Hello, i've had this amazing pre-amp for years and truly i really enjoy the well made, versatile, and tube warmth it applies to all uses. It is an insane Bass DI !!! Also has a thru capability which allows for the di and re-amping to get huge sounds while also harnessing the power of a isolated di signal or you can easily send any signal back out to effect pedals and or any other source.

here's a professional description of the model:

The SOLO/610 mic preamp/DI box from Universal Audio brings the best of their preamp designs to a single-channel format. The SOLO series features the solid build and audiophile components that define UA quality. Its portable form factor is convenient for use in the studio and control room, onstage, and on your desktop. The all-tube SOLO/610 imparts its alluring, characteristic warmth to all your digital recordings. Vocals take on new life; direct bass sounds huge and round; drums sound fat and punchy. Take it from Sweetwater: if you want to make great-sounding music, you need the right front end: the Universal Audio SOLO/610.