Yes, if you don't turn it up all the way.
Excessive power to speakers will result in distortion and possibly even complete failure of the voice coil and/or cone.
With 600 watts, you can't really go too big, and if you only have one amp, you can't go with separate mids/highs and a sub, so personally, I would try to find a pair of 200 watt speakers that have nice tweeters, mids, and lows, all in one. Don't go for anything over 200 watts each, because you want to leave room on your amp. You don't want to get two 300 watt speakers, because your amp will be working at full power, which isn't good for it or your new speakers. So all in all, a nice pair of 200 watt full range speakers is what I would be looking for.
yes
They can be as loud, as the amp is not delivering 600 watts. The 10" sub rated at 600 watts is able to withstand more power.
Absolutely!! If you turn up the gain too much, the speakers will smoke. You can use it at a lower level
If it is a subwoofer amp then set it at about 80 hz.
Speakers can be blown if the wrong power amplifier is used and damage can be done by either overpowering or underpowering the amp. For example, if the power rating of the speaker is 300 watts capacity you will need a 300- to 600-watt amp.
In most cases, the speakers should be able to handle more watts than the amp can deliver. Doing it the other way around will blow out the speakers.
Not unless the speakers are rated at a resistance (ohms) that is incompatible with the amp. Speakers don't generate power, the rating only tells you how much they can handle. So, speakers capable of up to 270 watts, can certainly handle 125 watts. However, if the amp is not 1-ohm stable and the speakers are 1-ohm, you could cause the amp to cut out and overheat depending on the protection mechanism of the amp.
It depends on the quality of the amp...and the speakers..no one can really answer that question with the information you gave. Don't forget that you can permanently damage your hearing by playing music too loud.
It depends on the rms of the two cvrs combined. Also if the 1200 watt amp is 1200 watt rated (rms) or 1200 watt peak. Lets say the two kickers have an rms of 600 watt each, and the amp is 1200 watt rms, which it probably isnt but i'll pretend. This set up would work because 600 of the amps watts would be correctly matched with one sub, and the other 600 would go to the other sub.
nope your powering it just right
Yes, but the amp is too powerful and if turned up to full volume will blow the speakers.