They both have their issues and their merits, but the G9000 is the one to have if there's a choice.

John Leaf It's not a button; it's a plug. Remove the plug and align the arrow to the required voltage. If the exact voltage is not available, select the higher neighbouring voltage. People on 200-208V systems should use the 220V setting; and if you have 230V mains, use the 240V position. There will be a very minor loss of power output (

Maximum power output capability remains the same; the loudness just adds a volume dependent bass and treble boost.

Oddly enough, they're better than these in a few ways including one way that is important: They're more reliable due to the bias circuit thermal tracking the output stage heatsink instead of the driver heatsink. It's also less complex and easier to service over all. The cost is FAR more reasonable as well.

It's not cheap. It involves multiple full work days of labor with expensive parts and is around $1200 as of 2024.

10% of the shipping weight was due to packing materials! I start with a double wall box, line that with 25mm/1" Styrofoam, and then wrap the receiver in bubble wrap. Corners are bolstered with tubes made of bubble wrap and any gaps are filled in with Styrofoam packing peanuts.

Andrew, thanks for replying!

These receivers actually have switch positions for 220 and 240V. Nothing bad will happen other than slightly reduced output power if it's run on 220V in the 240V position but the reverse will cause higher than spec internal voltages to the power amplifier which can exacerbate the overheating problems that these receivers sometimes. You'll be right on the edge of the 10% tolerance with no margin, which is not good for it. The preamp and tuner will receive the correct voltage regardless due to a regulator circuit, but the regulator will likewise run warmer if powered from 240V on the 220V setting. The 10% deviation won't be immediately harmful however so this can go unnoticed for a very long time. I advise EU residents to use the 240V position to be on the safe side but they can run either as 230 is within tolerance of both settings. Use the 220V setting for higher power, the 240V setting for longer transistor life. US and Canadian users should NEVER use the 100V setting; that's for Japan only and you will have 20% overvoltage on all rails if you try the 100V setting on 120V. This will lead to rapid wear of the voltage regulators and the power amplifier. I see this from time to time at home here in the US and the boards in such units show much more thermal stress than normal.