From Aguilar:

“Born in the heart of NYC and raised on the road, the Tone Hammer Preamp DI has been an indispensable tool for bassists seeking inspiring tone and versatility. With its warm, rich, and dynamic sound, the Tone Hammer Preamp is an essential preamp/direct box for every bassist. The Tone Hammer features fully sweepable midrange frequencies, in addition to bass and treble controls. With the Tone Hammers pristine D.I., players are set for either studio or stage. Enhanced for even greater flexibility, the updated Drive circuit now provides an expanded range, allowing for increased gain and a dedicated control to finely tune your sound. You can go from modern slap sounds to vintage or overdriven, and everything in between. 18-volt operation gives the Tone Hammer plenty of headroom, and weve added a Headphone Out and Aux In, making it the perfect practice companion, whether on the road or at home.”

Specifications

DI w/ Ground lift switch and Pre / Post

Unbalanced output can drive a power amp

Enhanced Drive Circuit with dedicated control and foot
switch

Cut and boost of treble, mid and bass frequencies

Fully sweepable midrange frequencies

Powered by 18v power supply

Inputs:One 1/4 jack, Aux In

Outputs:One 1/4 jack, One XLR (nominal output
14 dBu balanced), Headphone Out

EQ:
Bass +/- 18 dB @ 40 Hz
Mid +/- 17 dB @ 180 Hz to 1 kHz
Treble +/- 18 dB @ 4 kHz

DI w/ Ground lift switch and Pre / Post

Unbalanced output can drive a power amp

Enhanced Drive Circuit with dedicated control and foot
switch

Cut and boost of treble, mid and bass frequencies

Fully sweepable midrange frequencies

Powered by 18v power supply

Inputs:One 1/4 jack, Aux In

Outputs:One 1/4 jack, One XLR (nominal output
14 dBu balanced), Headphone Out

EQ:
Bass +/- 18 dB @ 40 Hz
Mid +/- 17 dB @ 180 Hz to 1 kHz
Treble +/- 18 dB @ 4 kHz

Brand new condition, comes with box.