This is a preamp/DI from eva electronics. The EQ on the preamp is also excellent. Above all, it's revolutionary in that you can shift the sound's center of gravity by moving the SHIFT knob. This isn't just a matter of the low end getting bigger; the center of gravity actually moves, giving the impression that the sound tightens up. It's very user-friendly. Retail price: 45,000 yen You can send the equalized signal to the PA system and also monitor your own sound while sending the signal to the recording console. It sends a low-impedance, balanced signal to the console. Because you can determine the tone yourself with the equalizer model, you can send the best sound, rather than leaving the sound setup to the operator at the venue. It also has an output that can be used for a tuner out, and when the TUNER SW is switched to this output, the output from the venue send terminal and the signal going to the MONITOR OUT terminal are also cut off, so no unnecessary sound is produced. To use this unit, connect the wiring from the monitor amplifier to the unit's MONITOR OUT. Connect from the unit's BALANCE OUT to the INPUT of the built-in direct box. Of course, if you can get the live house's permission, the best method is to use this unit as a direct box without using the live house's direct box. It also has a phase switch. Bass Guitar Effects Pedals Fender BOSS Darkglass EQD Empress