The 107 & 107/2 speakers are efficient and easy to drive. I used a Proceed Amp 2 (250 watts into 4 ohms with both channels driven) to drive KEF 107/2s with excellent result. It's a beautiful amp with a separate power supply for each channel. They are switchable between balanced (XLR) and unbalanced (RCA) inputs. You can probably find one used for $500. I have three Amp 2s and an Amp 3 that I'll probably hang on to even though I now use the larger Proceed HPA 2 & 3.
Are you using a KUBE 107? The 102, 107, and 107/2 Reference speakers were designed to be used with their respective KUBEs.
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Are you using a KUBE 107? The 102, 107, and 107/2 Reference speakers were designed to be used with their respective KUBEs.
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