Need amp for a Rotel RC-970BX


I have acquire a Rotel RC-970BX preamplifier. I am still in need of an amp which it will be driving a pair of DIY speakers. The speakers specification are around 100rms/8ohms with senitivity around 87. My budget would be around 600 for an amp, but limited to. What are a good recommendation for an amp? Thanks
Ag insider logo xs@2xhighend64
Well, unfortunately I not going to get the Rotel amp. Owner back out so I am stuck with another amp recommendation. I got an eye on two amps  B&K 125.2 or a ST1400.