Barrelchief,
I think you have a great combination. I love the DMC 30 and I am also a great fan Rowland amplifiers. But there are sonical differences. Rowland gear tends to be warmer, Spectral amplifiers (I think) have more resolution but not as much weight.
I have also combined Rowland with Spectral: the SDR 1000 with the Concentra and I think that this was the best decision I ever made!
I think you have a great combination. I love the DMC 30 and I am also a great fan Rowland amplifiers. But there are sonical differences. Rowland gear tends to be warmer, Spectral amplifiers (I think) have more resolution but not as much weight.
I have also combined Rowland with Spectral: the SDR 1000 with the Concentra and I think that this was the best decision I ever made!