BBE Sonic Stomp Sonic Maximizer Guitar Effects Pedal Frequency Response: Program Dependent BBE: Lo Contour +12dB @ 50Hz Process +12dB @ 10kHz Signal to Noise Ratio: BBE on Max 94dB BBE on Min 104dB THD: 0.02% at 1kHz Noise: BBE on Max -87dBu BBE on Min -97dBu Max Signal Level +7dBu Input Impedance: 1MEG Ohms Output Impedance: 1K Ohm * 0dBu = 0.775Vrms Hardware Bypass: YES Power Requirements: DC inlet: +9VDC min. 200ma Battery Life: 15 hours