Tube integrateds and Electrostatic Speakers

I have King Sound King stats which dip below 2 ohms and used a Primaluna Dialogue One integrated with zero problems . 35 watts v.s. correct me if i’m wrong 70 for the hp . Traded the Primaluna and will one day get the Dialogue hp mono blocks .

You want an amp with as low an output impedance as you can find, to keep the amp from affecting the frequency response of the speaker. One amp designer who takes this subject very seriously is Roger Modjeski of Music Reference. He designs and builds not only tube amps, but also ESL speakers---even one with integral direct-drive tube amps without output transformers! He doesn't offer an integrated, but recommends and will build a passive pre into any of his amps. Better than ANY integrated on the market, save perhaps the more expensive Jadis and EAR-Yoshino models.

 I have the HP.

Not using personally, but have heard several ML setups with PL gear. Also Stereophile reviews mention PL. driving difficult speaker loads including ML.

If you follow your hearing and not tech specs, realistic/convincing sonics is what I've heard. 

I say this because subjective good sonics doesn't always correlate with electronics 101 principles. Spec data isn't stellar, yet great sonics when actually used with "wrong" gear.