The 430 can also be upgraded.

I would imagine that none of the HK's future models will have the delay since they went through the trouble of fixing it in the 430 and 630 models.

Funny. I had the 630 for almost a year and the delay didn't bother me at all. Now that it's gone, I wouldn't want to switch back.

M- M60s/VP150/QS8s/SVS PC-Ultra/HK630 Sit down. Shut up. Listen.