A powerful machine! The Aguilar Tone Hammer is a powerful direct box/preamp/direct box which will bring back the life to your bass sound and even more ! It's super clean DI is based on the Aguilar's respected OBP-3 preamp. It features fully sweepable midrange frequencies in addition to bass and treble controls. The Tone Hammer is a great addition to your chain no matter if you're on the stage or in the studio.Already as a DI box alone, the Tone Hammer has it's right of existance. But Aguilar dod not stop there! With their Adaptive Gain Shaping circuitry (AGS) Aguilar made the Tone Hammer as flexible as it gets! AGS allows the player to kick in an additional gain structure and EQ with the "stomp" of a button. You can now go from modern slap sounds to vintage or overdriven, shape your tone to fit your needs. 18 volt operation gives the Tone HammerÂ® plenty of headroom to reproduce the most dynamic playing style. Separate Gain and Master controls allow you to dial in just the right gain structure for any instrument.Aguilar really hit the hammer on the head with the Tone Hammer, it is a must to the working bass player.