Can someone give me an idea of a low cost pre amp that might aid in my recording? My setup is a Shure KSM27 and Boss BR1200CD.

Thanks.
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Yamaha 920 / Yamaha Stagepas 100 BTRs / Senn e935 - LIVE
Roland RD 2000 / Tascam DP24sd / ATEM switcher - STUDIO