Materials for absorption panels

I want to try a similar set up to the 8th Nerve stuff, corners and seams.
I realise that for the 1rst reflection points, I don't need to worry about reflection but the idea of filling my small room full of huge bass traps does not thrill me.
Also notice that a lot of bass traps have two absorbent sides and two partially reflecting sides.
I've tried very large, very thick panels and they just kill the mids and highs.
To give a better reasoning for this project, 4 mini traps cost nearly £1,000 to buy hear, hence the diy approach.
Thanks Simon

Thanks Cal, that site is just what I was looking for.

Hi Cytocycle,
from my studies real traps would be the way to go - I'd have no qualms paying them but damned if I'm going to pay 3x the price cause of my location so diy is my only option.
My experiments so far prove to me at least, that room treatments are a hugely overlooked 'tweak' in my country.
It would still be cheap compared to some of my gear to buy ready made & probably a bigger improvement than cables but
it sticks in my craw to give more tax to Tony & his cronies!
They will just spend it on their next war - my country (Scotland)has produced the best crude oil in the world for years, so I'm told, I worked on the Rigs and we don't own or benefit or have seen any benefit from it to my knowledge and this is without an invasion!
Where were all the 'good ' guys when Genocide reigned in Croatia - ah well no oil, who cares !
Cheers Simon

Hi There,

thanks for all that. I have the fibreglass panels (nasty stuff!). I think they are our equivalent of 703.
Anyway they are 50mm thick.
I made an approximation of the 8th nerve stuff - glued tin foil to the front and getting quite good results.
I was concerned at the safety aspect so wrapped the panels in clingfilm before covering with cloth - bad idea I think.
I read if you can't blow through the material it won't work.
The foil is probably not letting through any mid or treble.
Will start again with scrim for the front and no clingfilm just muslin.
Going to make 3 2ft X 4ft 50mm thick panels just covered with muslin for the 1rst reflection points - side & ceiling.
Double up two pairs of panels to 100mm and laid in corners as bass traps - huge improvement.
My cara software , now that I have programmed all the absorption co-effecients of the 703/5 equivalent, is a great help in predicting the placements/results.

Cheers Simon