^X2. With the 007mkI you will find near zero fatigue, and it is probably one of the very few (the only one in my experience) that has the ability to be like that whilst excelling in detail extraction + impact. SR009 on the other hand has a bright sound sig, and depending on your personal tastes and amp/source, it could be induce fatigue.
Thanks for the responses. On the technical side, I will be using a transformer 1st, probably an SRD7 with my power amp; is this sufficient?. I asked this before regarding the 009s but apparently the 007s are more difficult to drive. My amp specs are:
Continuous Power Output 120w + 120w Min RMS per channel into 8 ohms from 20 to 20,000 Hz at rated T.H.D both channels driven Both Channels driven at 1,000Hz - 8ohms 120w +120w - 4ohms 130w + 130w Total harmonic distortion at 8ohms at rated power 0.008% Intermodulation distortion 0.008% Power Bandwidth (T.H.D. 0.05%) 5 - 70kHz Damping factor - 8ohms 70 Slow Rate 100V/uS Input sensitivity/impedance Main In - 1,000mV/50kohms Signal to noise ratio Main in - 110dB Frequency Response Main in (5-100kHz) +0/-0.5 DB Power AC 120v 60Hz Power Consumption 480W 620VA