They are more like 2ohm, and at 60hz where the -phase angle meets the 4 ohm could represent even less EPDR load to the amp.
https://www.stereophile.com/images/archivesart/1208T37fig1.jpg
What the member who’s thinking of bridging should do if he must get another ABH2, instead of bridging it, which will be a step backwards with these CS3.7’s in all parameters except total wattage.
He should vertical bi-amp the two ABH2 amps, that way the whole power supply energy is available to just one bass speaker of one channel instead of two. The amp/s remains stable and able to drive these nasty loads.
https://www.av2day.com/wp-content/uploads/2014/05/biamp2.jpg
Cheers George
https://www.stereophile.com/images/archivesart/1208T37fig1.jpg
What the member who’s thinking of bridging should do if he must get another ABH2, instead of bridging it, which will be a step backwards with these CS3.7’s in all parameters except total wattage.
He should vertical bi-amp the two ABH2 amps, that way the whole power supply energy is available to just one bass speaker of one channel instead of two. The amp/s remains stable and able to drive these nasty loads.
https://www.av2day.com/wp-content/uploads/2014/05/biamp2.jpg
Cheers George