do bridged amps give the same sound as non bridged

My comments about this is that as the power is doubled (fed to the speaker) the amp has a better control of the speakers requirements. So 130 W is better than 60 W in terms of "control" per se because it can generate more current easily when the transducer requires it than when the only available power is half of that.

For both amps rated at 130 W to sound the same with your speakers is really hard to predict. Yes they are equal in power but you have to consider many other things like damping factor, storage capability (caps), frequency response, transient response (i.e. how fast, long and stable can it generate max current over a period of time without the possibility of clipping or introducing some form of distortion to the signal path), power supply designs and stability etc.

Bridging the amp makes the power higher because you are now using two sets of "storage" tanks (for analogy purposes Torroidal Xformer, or output caps for each channel is now doubled) combined compared to a single xfrmer and single set of output caps. So in essence, a properly designed bridge amp should sound better than when it is not bridged because of this which goes back to the "control" factor again.

Just my thoughts. I could be wrong but this is what I remember when researching this issues.

Hope this helps....