These monster heads are well liked by metal players for their high gain and awesome volume.
Well this one came to me like a crippled kitten, working one minute and then cutting out where volume dipped completely strangling the output. The cause? Well Laney do design great amps, in terms of tone, but due the their position in the mid tier price bracket it seems to mean that compromises sometimes have to be made. I totally get that but I would prefer them to limit the number of effects sockets instead of skimping on valve socket quality.
Yes in this case and other Laney models I have seen the valve socket connection with the valve pins been problematic. In this case there are two symptoms
1. crackles, pops and rumble noise
2. virtually total cut out
I am sure this is a quality issue and not a wear issue as I regularly come across forty year old Fender and Marshall’s where a repair can be achieved just by re-tensioning the pins but these brown Laney sockets just don’t seem to play ball and replacement is the only option. However the good news is that replacement sockets are cheap and do work.