Which amp to use with an Arcam Delta 290p?

[koenh]

My Arcam Delta 290 amp is broken. Which amp should I buy to use with my Arcam Delta 290p? The obvious choice is another Delta 290 or an Alpha 9, but I wonder if a Diva A80 or A85 would also be ok or better. Or maybe another brand?

I use(d) both amps bi-amped to KEF Q-series Loudspeakers.

Koen