I have Model 9Ti Rowlands and use the Top Gun HFCI. I am not a big proponent of using expensive power cables but the quietude and dynamics I achieve in the system with the Top Gun is exceptional. Inexpensive alternative is the MIT Z-2 power cord, very quiet for a reasonable price. Don't forget Jeff likes to use the IEC plug at the amp side of the cord which makes the cable at least a special order if the Model 8 uses the IEC 20 amp plug. Happy listening