This name is pronounced "bah-ROOKH" or "BAH-rookh." Pronouncing it with any other ending consonant (e.g. Bah-rook) is as incorrect as pronouncing the name Peter as Beter.
The pronunciation is bah-ROOCH, like in German, never bah-ROOK or anything else ending in a "k" sound. The final letter in hebrew is a final chaf, which always recieves a "ch" sound. For it to have a "k" sound it would have to end in koof, a completely different letter.
Pronouncing it with any other ending consonant (e.g. Bah-rook) is as incorrect as pronouncing the name Peter as Beter.