[jackson1]

Help me find some monitors, preferably In-Ear, with the best sound isolation possible. On top of the In-Ear monitors, I will use the best earmuffs I can find. I have zero experience with In-Ear monitors, but I think they are the best solution for this, right? They don't have to be top class HiFi models.
 
The priority for me would be:
1. Isolation. Best broadband attenuation.
2. Price.
3. Sound quality, especially midrange.
X. Looks, brand, comfort, whatever, doesn't matter.
 
The reason for this is, I need to be able to move around a microphone in front of a guitar cabinet and hear the microphone in the 'headphones' while the guitarist plays his instrument. The purpose is to find the best position for the mic in relation to the speaker. Typically, this is pretty difficult and sometimes impossible, because the sound from the speakers leak into the closed headphones I'm normally using for this. A guitar amp is often pretty loud when sounding its best. So I can't properly judge what's being picked up by the microphone. I want a better solution with much better isolation if possible.
 
Please give me a few tips. Anything is welcomed!
Can In-Ear's be custom moulded to fit my ear? Will that help attenuation significantly?
Are there generic moulded In-Ear's ready to use?

 

[c61746961]

It seems a pair of Etymotic ER4PT or its variants would do the trick, they have a broadband isolation of 43 dB according to InnerFidelity, the midrange is pretty uncolored as well.

 

[Ivabign]

It seems a pair of Etymotic ER4PT or its variants would do the trick, they have a broadband isolation of 43 dB according to InnerFidelity, the midrange is pretty uncolored as well.

+1

 

[jackson1]

43dB that's pretty impressive. Thanks for the tip. $299 hmm, a little steep for me, but..

 

[c61746961]

There's also the HF5 wich is said to sound close to the ER4 variants (haven't hear them myself), it's ~$100 online and offers 35 dB broadband isolation (sic).

 

[heatofamatch]

Isolation-wise the HF5 appears to be identical to the ER4. Other cheaper Etymotics may also be capable of the same... but of course we'll need someone to test this out to be sure.