The releases single sided colour sleeve takes in an illustration of a crawling Christ with many hook made cuts & abrasion in his back. So straight from the outset you know you’re not going to get anything vaguely nuanced, subtle, or detailed here. Each track here rips straight in at you like rabid dog, and hangs on right till the bloody end.

On side A we have "Sumidero 0"- this opens with a simply & sustained buffeting ‘n’ billowing low–end roast. Around this we get a selection  thinner, shorter & less fixed jitters, judders, and seared sub tones. From time-to-time, as the track progresses, we get shifts in the main tone, as well of course the sub tones- these are never really anything either too complex or of huge structural relevance. On the whole it’s a intense, if a little un-remarkable slice  of HNW…though I do rather enjoy the more buzzing ‘n’ throbbing bass sub tones that appear in the tracks second half.

Flipping over to B and we have "La Zona De Las Voces Del Tiempo", and of the two I’d say this is the more effective. It brings together a locked-yet-seemingly constantly descending deep ‘n’ thick roast. To start with over the top of this we get thinner, sometimes fliting, and ill defined subtones- these take in sudden jitters, crisp sweeps, and crude slides. As the track progresses these sub-tones become a lot more defined & repetitive in their feel- they also take a firmer judder ‘n’ rattling feeling too..

So in conclusion La Jaula De Concentratión 69 is a passable slice of brutal & intense walled-noise. At times the ‘wall’ do feel a little to crude, ill-defined, loose & simplistic for their own good. But certainly there is promise here, and I can see myself revisiting the second wall again, at some point.