"from a spectrum" is a correct and usable phrase in written English.
You can use it when referring to an array of different points or levels, such as ideas, emotions, or situations. For example, "The study examined responses from a spectrum of age groups."
In Lago Vista, residents secured loans from a spectrum of federal agencies and lenders.
Then there are vintage shops, specializing in retro clothing, often from a spectrum of eras.
Choose from a spectrum of colours – including monochrome and acid yellow – to bring a modern buzz to your living room.
Formed a decade ago, the party is a mix of lawmakers from a spectrum of political views, including socialists and free-market advocates.
Profit warnings came from a spectrum of industries -- from companies including Minnesota Mining and Manufacturing, DuPont, Federated Department Stores, Marconi, Advanced Micro Devices and EMC.
The aide, and a cabinet minister, said that in the last several days they were barraged with demands from a spectrum of Pakistani society that Dr. Khan not be punished.
"We are funded to fully sequence 50 labradors which we are choosing from a spectrum of different animals with different phenotypes (observable characteristics) so we can get insights into the causes of the main illnesses that affect the breed".
The solution to Britain's economic difficulties will not come from one type of educational institution, but from a spectrum of institutions, each offering a rich and enduring provision to the widest audience, collectively seeking to solve our economic problems.
Get into the Olympic spirit by frantically trying to buy tickets in sports you don't understand for ludicrous amounts of cash, using a shonky internet system currently being run from a Spectrum ZX81 in Seb Coe's back bedroom.
From first light each day until past dusk, mourners of all ages, from a spectrum of ethnic and religious groups, have lingered beneath the gaze of uniformed police officers, honoring the memory of a man few of them knew.
The title of the piece was "stolen," Mr. Iyer said, from his friend Teju Cole, who wrote the 2012 novel "Open City," which is set in New York and draws from a spectrum of cultural perspectives.
