This is my first experience with preamps, let alone tubes, but I'm perfectly happy with the look and sound of this little unit. It looks pretty with glow-in-the-dark tubes and is easy to set up. It also includes a ground wire with alligator clips on the ends - which was nice as it wasn't listed, and as I used it with a turntable it was perfect! My version has a red boost button on top (not on the inside like other reviews have mentioned), but as others have suggested, you don't need to enable Boost for most applications. To be honest I don't, I don't use standard tubes but like many others I bought this one instead: https://www.amazon.com/gp/product/B01BFJDTW0/ref=ppx_yo_dt_b_asin_image_o07_s00 low power, it just works great. Maybe stock tubes are a better fit, but if they're really inferior in quality and tone, I don't worry if one of these replacement tubes doesn't die on mine. The price is perfect - if I paid less I would be concerned about the quality. materials, but it feels good and is the perfect weight. The aluminum finish is beautiful and goes really well with my silver metallic setup. The only thing I would have liked
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