Nature of Koetsu carts

The tonearm/cartridge combination is much more critical than is the turntable/cartridge relationship.  However, you've got the right type of tonearm for a Koetsu, so I say yes. The Ikeda should be ideal for a Koetsu.

 The Rosewood line of Koetsu cartridges was always known to have a mid range prominent sound. So in my opinion all the responses above are correct. The other models of Koetsu cartridge that are in the same price range or more expensive than the Rosewood are exceptional and offer very good bass response and very decent treble extension. They are great sounding cartridges. Even the Rosewood platinum version outshines the base Rosewood model. In my opinion, the best bang for the buck among Koetsu cartridges is the Urushi. The stone bodied models are probably even better. Heavy tonearm is a must.