Significant improvement for Gustard DAC and KEF 105/3 I installed two Burson V7 Classic Single op-amps in my Gustard DAC, which is connected to a Sony TA-F870ES amplifier and KEF 105/3 speakers.
The upgrade is clearly audible. The soundstage opened up significantly, becoming deeper and more precise. What I like about the V7 Classic is the natural, organic tone—the mid-range is rich and the highs are detailed but never fatiguing. Even with my current cables, the transparency has improved. A very solid upgrade for anyone looking to get more musicality out of their system.
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