From PRS' Website:

"Designed from the ground up to rival David Grissom’s favorite vintage amps, the PRS DGT 15 is rich with character and feels alive under your fingers. From sparkling cleans to heavy overdrive, this 15-watt single-channel amplifier intuitively offers tones beyond the typical limitations single-channel amps can have. It is a versatile amp with all the magic of smaller-wattage vintage tubes amps but is fully applicable in a modern setting. The DGT 15 is designed with several highly functional tone-sculpting features to maintain balance and articulation through its many unique settings. Starting with a 3-band TMB (treble, middle, bass) tone stack, the DGT 15 also includes a 3-position bright switch, boost, reverb, top cut, and presence front-panel controls. But it is not just the controls, but the combination of the controls and control parameters that bring out this amp’s extreme functional versatility. For example, the bright switch can be set to on, off, or on except when the boost is engaged – so you can intricately manipulate the amp’s high-end. The Master Volume can be set to be on, off, or on only with the Boost. The tremolo circuit oscillates the power tube bias (old-school) and features speed and depth front panel controls to dial in to your exact preference. The included 3-button footswitch allows you to control boost, reverb, and tremolo at the tip of your toes. All of these features mean you can find your sound and shape your tone with the PRS DGT 15 amplifier."