Using the SB-2 with a keyboard The Passive SB-2 is a perfect go-to direct box when you need to take the output from a keyboard and send it to the PA system. Input and thru jacks automatically merge the stereo signal to mono to save channels while the SB-2 balances the signal to drive distances of 100 meters (300 feet) without noise! Specifications Audio circuit type: Passive, transformer based Transformer: Eclipse ET-DB3, 12:1 ratio Number of channels: 1 Frequency response: 20Hz ~ 20KHz (± 0.5dB) Dynamic range: 115dB Total harmonic distortion: 0.005% @ 1kHz Phase Deviation: 3° @ 100Hz; 8° @ 50Hz Input Impedance: 140k Ohms, unbalanced Output Impedance: 1k Ohms, balanced Maximum Input: 20dB Features Input pad, Ground lift Input Connectors: 1/4″ Output Connectors: XLR General Construction: 14 gauge steel chassis & outer shell Size (L x W x D): 4.5″ x 1,85″ x 1.35″ (114mm x 47mm x 34mm) Weight: 0.55 lbs (250 grams) Shipping size (L x W x D): 8″ x 5″ x 3″ (203mm x 127mm x 76mm) Shipping weight: 0.8 lbs (365 grams) Power: Passive, no power required Conditions: For use in dry locations only between 5°C and 40°C Warranty: Radial 3-year, transferable
