I am in the same boat, I am very interested in the A-400S but find it hard to find information. I have contacted Marsh though and if you want more power wait, there will be an A-400 monoblock and another model with even more power! They are both due out in March. And no I do not work for marsh and or sell there product, feel free to send me an email and we can compare notes on what we have found, Tim.
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