Fender 400-ps c 1969 original vintage USA 500 watt all tube monster bass guitar amplifier | Reverb
Abell Repair - For sale! Rare Fender 400PS, only $1600! All new tubes, new capacitors, all cleaned up, works great! And our 90 day warranty! Read all about it here: https://reverb.com/news/the-most-powerful-tube-amp -of-all-time-behind-the-fender-400-ps
NAD - 1970 400 PS Monster | Telecaster Guitar Forum
1971 Fender 400 PS bass amp head -... - Caveman Vintage Music | Facebook
Surf Riders - Fender 400 PS BASS AMP with stand and speakers | Facebook
NAD: 435 Watt Fender 400 PS Head w/Matching 1x18" Cab. More powerful than a Model T, louder than an SVT, heavier than a literal boat anchor 🤯 : r/GuitarAmps