Shindo Montrachet EL34 amp -- can it handle impedance of Snell Type A?

I have a Shindo Montrachet EL34 amp and Vandersteen 2wq subs that cross at 100hz with passive first order MP-5 crossovers. I either need to sell the amp or sell my Quad ESL-63 speakers, which I also love, because the authorized Shindo dealer tells me the Quads could damage the Shindo (it is really designed for higher efficiency 16 ohm Shindo speaker loads). I believe the Quads drop to 3.5 ohms or so in the bass and rise quite high in the treble.

I have an opportunity to acquire an old friend -- Snell Type A speakers. I am not worried right now about the Shindo's ability to "drive" the Snells in terms of power/dynamics. But I am concerned that the Snells could also present difficulty/danger for the Shindo due to impedance. The Snells have a minimum impedance of 4 ohms, but I do not know the exact maximum or the full impedance curve. I'm trying to find out, if anyone knows the impedance curve.

Does anyone know if the Snells would be safer with the Shindo than the Quads are? Does the fact that the Snells are a dynamic speaker and not an electrostatic inherently make it easier for the amplifier to stomach?

Thanks for any thoughts. Again, not looking for sound quality advice or speculation. I will be able to listen to the Snells before buying. But I don't want to endanger the Shindo amp.