Looking for info on speaker loads?

The room size is 12.5' x 13' with an 8' ceiling, A converted bedroom after my son left for college LOL. Carpet floor, no room treatments put the window is covers by wood shutters. I would think not a difficult environment to drive a couple of speakers.  

The M33 states it will provide 380 watts x 2 into 4 ohms

tbh - that size room, no way that m33 should overload or go into fault mode driving lrs's to moderate volume... i think something is wrong with that particular unit (or the lrs's...)

@jjss49 

The room size is 12.5' x 13' with an 8' ceiling, A converted bedroom after my son left for college LOL. Carpet floor, no room treatments put the window is covers by wood shutters. I would think not a difficult environment to drive a couple of speakers.  

The M33 states it will provide 380 watts x 2 into 4 ohms

However, I am getting a first hand education on what it really takes to drive these in my room. I don't listen loud but I like having the option to when required. I have a Db meter on order so I can measure exactly where the limits are. 

op

if you are liking the speakers and will go with the lrs+ for long term use, you would be well advised to get a better suited amplifier... i would’ve thought the m33, an upper-level effort from nad, would be able to handle them despite the class d topology, but perhaps your room is large and you like the music on the louder side

there are recent threads here on proper amps to drive maggies, just search and you will find plenty of info

bit of irony most lrs/lrs+ lovers live with... thousand dollar speaker needs several thousand dollar amp with major ’cajones’ (nad and many other pretenders need not apply... 😁)

@2psyop  Yes you're right the Maggies are clipping and I've gotten two different types of error messages from the amp. It's very troubling because I am loving the sound of the Maggies and I don't want to go back to the LS50's. My dealer loaned me this pair of LRS speakers until the LRS+ arrive. At least there is a return policy but, I hope the LRS+ version will give me a different result. 

I had the LRS for a bit. I had a McIntosh 452 amp that had no trouble with other speakers. I felt like the Maggies were just ridiculous with the amount of power required. Great $700 speaker that requires crazy power. Your story doesn’t surprise me.

FWIW I had a Parasound A21 pushing Magnepan MMG's. The amp never clipped but as I pushed the volume up I could almost feel the current draw on the amp. With the other two speakers I have, one pair is 8 ohm and the other pair is 4 ohm i never felt that the amp was pushed hard..... and the speakers would be LOUD.

The advice from russ69 will allow you to narrow down the problem... for sure. But i am willing to bet you the Maggies are dipping and your amp is straining.

Thanks. I will use that as a starting point.

Swap speaker sides and see if the other channel overheats. 

maggies would draw more current than the kef's... perhaps your m33 has a bad output module (or at least a bad warning circuit sensor...)