Before spending $7K on the 3.4s, you might see if you can listen to a pair of Legacy Audio Signature SE. I had a chance to have a two week in home audition with them, and from your list of music, they might be ideal, IMO. I recently heard the Dynaudio at a shop in Austin, and no way does it compete with the Legacy.
http://legacyaudio.com/products/view/signature-se/
System Type: 5 driver, 4 way Tweeter: Dual Air Motion Tweeter System- 1" AMT super tweeter, Kimber silver HF wire Midrange: Dual Air Motion Tweeter System- 4" AMT tweeter Midwoofer: (1) 7" Silver Graphite, cast frame Subwoofer: (2) 10" spun aluminum diaphragm, rubber surround, long throw suspension with cast frame Low Frequency Alignment: Sealed, adjustable damping Freq. Response (Hz, +/-2dB): 22-30K Impedance: 4 Ohm Sensitivity: (Room, dB@ 2.83V) 92 dB Recommended Amplification: 10 - 300 Watts Crossover: 180, 2.8K, 8K Binding Posts: 2 Pair Dimensions HxWxD (inches): 48 x 12 x 13.75 Weight: 106 lbs each
http://legacyaudio.com/products/view/signature-se/
System Type: 5 driver, 4 way Tweeter: Dual Air Motion Tweeter System- 1" AMT super tweeter, Kimber silver HF wire Midrange: Dual Air Motion Tweeter System- 4" AMT tweeter Midwoofer: (1) 7" Silver Graphite, cast frame Subwoofer: (2) 10" spun aluminum diaphragm, rubber surround, long throw suspension with cast frame Low Frequency Alignment: Sealed, adjustable damping Freq. Response (Hz, +/-2dB): 22-30K Impedance: 4 Ohm Sensitivity: (Room, dB@ 2.83V) 92 dB Recommended Amplification: 10 - 300 Watts Crossover: 180, 2.8K, 8K Binding Posts: 2 Pair Dimensions HxWxD (inches): 48 x 12 x 13.75 Weight: 106 lbs each