I would shop speakers. I've never heard the Wharfdale Linton speakers so I am not making a value judgment on how they sound.
While money doesn't always translate into better sound, the point of diminishing returns with speakers is, IME, much higher than the Linton's cost.
Both your PS Audio Strata and Terminator DAC are multiples more expensive than your speakers. Outside of acoustic treatment, speakers tend to have the most direct impact on what you hear.
For 10K you can get some great speakers. Depending on what type of sound you prefer there are dozens of excellent companies. Salk, Daedalus, Spatial Audio, Magnepan, etc, etc.