Replacement Reverb Tank for 4AB3C1B Used In Fender, Marshall, And Ampeg Amps Solid, Sturdy Construction Long (16.75") 2 Spring Unit , Long Decay Input Impedance 8 Ohms, Output Impedance 2250 Ohms input insulated, output grounded horizontal, open side down Mounting plane Replacement Reverb Tank for 4AB3C1B Used In Fender, Marshall, And Ampeg Amps Solid, Sturdy Construction Long (16.75") 2 Spring Unit , Long Decay Input Impedance 8 Ohms, Output Impedance 2250 Ohms input insulated, output grounded horizontal, open side down Mounting plane<アンプパーツ・リバーブユニット> Marshall JCM2000などに使用されている4AB3C1B互換品