Mate. Thanks for that. I was looking at the 624s as my room won’t be the biggest but these were a bargain and they have the switches to reduce bass so I bought them. The guy’s owned them from new. Said he paid £700 each. They’re the original USA versions.
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I suggested to them they make the ABM pre in pedal form just like the other pre pedals they have. Don’t think it’s an option. I think they’d sell loads of them.
Says he no longer does them as the platform is unreliable.
I’m guessing it’s marginal gains, and sending players with have moved into the Helix if audio quality is that important.