Boss Audio Systems R2400D Car Amplifier User Manual


 
R2400D·R3400D Amplifier User’s Manual - page 11
R2400D or R3400D
R2400D and R3400D
R2400D·R3400D Amplifier User’s Manual - page 6
When bridging two R2400D or R3400D amplifiers, the minimum speaker
impedance is 2 ohms.