The ToneDEQ Preamp EQ is a complete performance solution for the acoustic musician. With a high-quality preamp, dual effects section, tone controls, a compressor, level booster and a balanced D.I. — it’s got everything you need in one box. Its analog signal path goes from end to end — from preamp to output — to give acoustic musicians a richer tonal quality. Even the digital effects are mixed in parallel so they don’t affect the purity of your acoustic instrument. Flexible outputs include a 1/4"" amplifier output and XLR D.I. output for the lowest noise possible. Plus the D.I. features automatic ground-lifting and selectable pre/post EQ settings. With Fishman, you get quality discrete class-A signal conditioning created by the leader in instrument preamp design. The high-impedance input is a must when using a passive instrument pickup. Legendary 4-band equalizer design provides superior tone control for any acoustic instrument. The variable low-cut filter controls sub-bass effects produced by some passive pickups.SpecsInput: 10M Ohm, Discrete Class-A JFET DesignAudio: All-Analog Signal Path With Parallel Digital EffectsTone Control: 4-Band Eq With Bass, Middle, Treble, And Selectable Low CutDual Effects: Reverb (2) Or Delay (2), Chorus (2), Flanger Or TremoloDynamics: Soft-Knee Compressor, Boost Footswitch (Up To 9dB)Feedback Control: Selectable Phase InvertAudio I/O: 1/4” Mono Instrument Input, 1/4” Amplifier Output, Balanced XRL D.I. Output With Pre/Post RoutingBattery: Powered By 9-Volt Battery (Not Included), Or Fishman 910-R Power Adapter (Optional)Dimensions: 5.36” L X 9.5” W X 2.2” H (136 mm) (241 mm) (56 mm).