enough for me to hear/enough for me to hear it

(A) The music was very loud, and I could hear it from far away.
= 1. The music was loud enough for me to hear from far away.
= 2. The music was loud enough for me to hear it from far away.

(B) The digital camera is expensive, and I can't buy it.
= 1. The digital camera is too expensive for me to buy.
= 2. The digital camera is too expensive for me to buy it.

I think 1 is grammatically correct for both (A) and (B). Someone says 2 in (A) is also grammatically correct.
If 2 in (A) is also...

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