5-Pin Power Plug ZAPCO Equalizer Line Driver SP4-SL SP4 SL

2-Pin Speaker / Power Plug ZAPCO Eq Line Driver Amplifier

4-Pin Power Plug HELIX Equalizer Line Driver Amplifier

ZAPCO 5 pin mini Power Plug for SP4-SL SP4 SL - OEM Quality!

4-Pin Power Plug US AMPS Equalizer Line Driver Amplifier

3-Pin Power Plug ZAPCO Equalizer Line Driver EQ

4-Pin Power Plug HELIX Amp Equalizer Line Driver Amplifier