u probably haven't listen to any Sinfoni monoblock powering Mids before

yup
in fact Sinfoni 60.1 is same theory as GDM
both also dual mono amp

u either dono some amp produce more than 150w rms per channel and will produce 450w rms when bridged

or u dono some sub can be power up using a mere 70w rms

nah
those woofer can be power up using just 100w rms power

w and rms

u guys got it wrong

w is the power measure standard

while there's also max power , music power, peak power or root mean square power etc etc

normally those cap ayam ( include Sony, yes...Sony)
tend to use the max/peak power rating to confuse the consumer to think the the amp is SO powerful

but in ICE we only can use up the power of RMS
so dun just blindly see the amp labelled 1000w means it's a good amp