The phrase "a host of instruments" is correct and usable in written English.
It can be used to describe a large number or variety of instruments, often in contexts related to music, technology, or tools.
Example: "The orchestra was equipped with a host of instruments, ranging from violins to percussion."
Alternatives: "a multitude of instruments" or "a variety of instruments."
What you notice first in Hadreas's new songs is silence, which he then breaks apart with his tremulous but accurate voice and a host of supporting instruments.
Such systems made it possible to control a host of small instruments or devices (e.g., numerically controlled lathes and one-armed robotic devices for spot welding) by using standard components programmed to do a specific job.
This space houses a host of different instruments including scanning tunneling microscopes (STM) that have been moved from the University of Illinois at Urbana-Champaign, where our group had been from 1998 to the summer of 2005.
About the size of a washing machine and featuring a host of scientific instruments, ESA's lander was released from the Rosetta space probe on 12 November 2014, touching down on the rubber-duck shaped comet 67P/Churyumov-Gerasimenko after a nail-biting, seven-hour descent.
(Chinen) COOPER-MOORE (Sunday) Cooper-Moore is an extreme polyglot, even by avant-garde standards, as he demonstrates in two afternoon sets: first singing, manipulating electronics and playing percussion with the cellist Nioka Workman and the keyboardist Matt Motel; then playing piano and a host of other instruments, alongside Assif Tsahar on reeds and Chad Taylor on drums.
MIO and MPO are equipped with a host of scientific instruments, and will be able to look more closely at features of phenomena identified by Messenger.
Children from remote villages get a glimpse of the world outside through a host of technological instruments.
MRO contains a host of scientific instruments such as cameras, spectrometers, and radar, which are used to analyze the landforms, stratigraphy, minerals, and ice of Mars.
In response to criticisms levied against MAT in a pilot study, we sought to develop a new version of the tool, but because we also anticipated multiple subsequent variations as well as, potentially, a host of additional instruments using the same (or a similar) structure we elected to construct a flexible framework upon which new versions of MAT could be implemented.
