Are the KEF Blade/Blade 2 Metas a Significant Upgrade from Blade?

Any of you Blades owners use 2 stereo amps with Blades. That is 1 amp on the L and R high frequency speaker connection and a second stereo amp for the L and R woofers.

I have an amp that I really like, the KRELL 175XD, but I want to have more power  for the Blades (when I get it) than that amp delivers. I was wondering if getting a KRELL 300XD just for the woofers would be similar to getting a very powerful amp that can double from 8-4-2 Ohm. 

Getting a second KRELL amp would be cheaper than the other 'super amp' options I was considering.

It seems the input sensitivity and the output impedance of the 175XD and the 300XD do not match. So my only option to bi-amp would be a second 175XD. 

????????????? I just looked up the specs on the 175XD and the 300XD and the gain is exactly the same....26.2db. They will play together perfectly. And the output impedance is so low in both of them that it won’t have any effect on gain or frequency response as well. You are good to go....unless there is some other issue.

Input sensitivity means how much input voltage gives full power from the amp.....since the 300 can put out more power then you need more voltage to get ALL of its power.........What is important is the actual GAIN of the amps.....and they are the same.....so biamping with them is perfectly fine.

Well I read the part about input sensitivity and output impedance on the internet. I thought everything on the net was true.

Bi-Wiring and Bi-Amping Explained - How To Improve Your Audio Setup | Audio Advice

Your post is encouraging I also asked KRELL today the same question. My CODA 07x preamp also has dual XLR outputs so I can easily send 2 stereo amps the same signal.

If two amps have the same power rating......then the "sensitivity" would matter and it would imply a different gain structure.  The thing that matters is gain.....that is what will determine matching.....and you have it.  And the output impedance will only affect frequency response if it is really high....both amps are very, very low.....7 and 15 millioms........so even into 2 ohms there will be NO loss whatsoever.

it is also good that both amps have a high input impedance (200K).....then two of them in parallel is 100K.....still plenty high.....and easy for the preamp to drive.

Only what I write on the internet is true.....he he....I am NEVER WRONG......except when I am....