I bought this in 1989 when it was first released (from Sound Warehouse...remember them?), so it definitely is the original remaster.

The average volume is quite soft, but only because it is not compressed (see final image above), so the soft bits remain soft and the loud bits get LOUD. So turn up the volume another couple notches and enjoy the full dynamic range of this wonderful recording.

For comparison, here is what Echoes looks like on the most recent Discovery remaster from 2011. There is certainly clipping in one channel towards the end.. Stupid loudness wars again!