I've watched the YouTube Video
, but none of the advanced techniques (appear) to help me with this one.
I've made one relational clue by combining clues:
Siren Loudness Decibels:
2007 is louder by 5 decibels than $120 which is louder than Rip Tide which is louder than 1994
Sadly, the 1994 model is the quietest. This leaves Rip Tide with two louder, one quieter, $120 with two quieter one louder, and 2007 with three quieter. Each of these then has 2 possible answers.
Anyone see anything else?
(See next reply for the attachment, sorry.)