Monoblock can refer to:

A type of air conditioner
A Monoblock LNB
Monoblock, in engineering, refers to a casting or forging which is made in a single piece, rather than being fabricated
A mono hi-fi power amplifier
In photography, another name for a monolight, a type of electronic flash with the electronics in the head, as opposed to a pack-and-head system

http://electronics.pricegrabber.co.uk/tv-vcr-dvd-combo/p/84/