Is it just me or does the Sensation have a low ring volume? Against my MT4G it is like a whisper. The MT4G volume is sooo loud that I would keep it on level 2. But the Sensation seems to have to be set much higher just to get a decent ring volume.
Is there anything I can do or download or is it a case of 'it is what it is'?
It's usually hit or miss on ringer volume. Some phones I have had, the speaker is fantastic. Others, not so loud. Also, the ringtones supplied with phones may not have been recorded "at full blast" so when they ring the sound is muffled.
Go to Android Market and install an app that enhances the volume. The other solution is to make a custom ringtone (or download one) that's loud. I have done that as a workaround and it's always fixed the problem.
Also, experiment with the various ringtones that come on the Sensation, some are way louder than others. For example, the "Curve" ringtone is pretty loud, IMHO. Other ones that are usually loud are the classic phone sounds.