Ibanez TS9B Bass Guitar Distortion Pedal – Equipped with controls to allow bassists to produce the sound they want while still maintaining the feel of the Tubescreamer. Experimenting with the mix and tone controls allows for creation of a limitless number of sounds. Players can get a tight, fuzzy sound with mix control or a mid-scooped, funky sound with 2-band control. The Ibanez TS9B Main Features: Level, Gain, Treble, Bass, Mix Controls Input impedance 500K ohms Output impedance 10K ohms Maximum Output Level 0 dBm Maximum Gain + 30 dB Equivaient Input Noise -100 dBm (IHF-A) Power Supply One 9 Volt Battery or external AC adaptor (9V) Size 4.9(D) x 3(W) x 2(H)inch Weight 1.3 lb