Thanks for the answers John and Wolf! Few more questions..
Can you tell us pricing yet?
Can we get a picture of the remote?
Any insight into topology? Is it balanced all the way through? How many relays are in the volume control section?
Since I am not a member of the manufacturer, I actually don't know the price...but I previously suggested that they set the price of Pre90 lower than A90 (lower than 499.99USD). As for the remote control which makes me feel headache, the remote control of Pre90 is very ordinary. I recommend Topping to provide a better, more textured remote control (or as a gift for Ext90 and an option for Pre90)-it is said that the main problem is that they use CR2032 to achieve a better remote control. Batteries, if this type of lithium battery is included, the product will not be shipped by air... Assuming that the battery is not included, the product can be shipped by air, but it cannot be used "out of the box"
In my experience, for a "living room" oriented preamplifier, the texture of the remote control is very important!
The current remote control (I am not satisfied)
I recommend them this remote control: