One company makes a quality phono stage and offers a 30 day trial: Decware. Take a look at their phono stage; nicely done, simple with only three triode tubes and supposedly very good. My partner has auditioned one and said it is up there with the better ones; he also said it is well engineered. My partner is a qualified electrical engineer and appreciates these things.
www.decware.com
www.decware.com