Hi Kingrex
I have the LM 518ia amp, based on 845 tubes , 22watt /ch not 211 tubes.
I have the Coherent audio Gr10 speakers, full range with compression driver .Very good my end game speaker.
94 DB sensitivity . Canadian made but there 2 dealers in US. Worth the money. Has prat , coherent , neutral but on the warm side. No sub.
Pro Radian driver made in USA , modified by Coherent audio.No resistor to path down the compression driver to match the woofer.
Woofer has 1 inductor, compression driver has 1 capacitor optional bypass cap on it. You should check Atelier13Audio.USA or True Audiophile.USA
I changed the Mundorf caps to Jupiter caps , bypassed 2 of Duelund (1 silver , 1 tinned cooper )0.01 bypass caps. Big improvement.