Ones that are totally comfortable seeing 1ohm all day, and don't sag in their power delivery into it, many that use tubes get distant sounding highs for this reason.
Out of the ones you mention only the Magnatech has a show of getting the very best from these, the others will work but the speaker won't give it's best.
Cheers George
Out of the ones you mention only the Magnatech has a show of getting the very best from these, the others will work but the speaker won't give it's best.
Cheers George