The phrase "a far broader range" is correct and usable in written English.
It can be used when discussing a variety of options, possibilities, or categories that are significantly wider than a previously mentioned range.
Example: "The new policy offers a far broader range of benefits compared to the old one."
Alternatives: "a much wider range" or "a significantly larger range".
Today's engineers have to interact with a far broader range of contacts than their predecessors.
For its part, Samsung says it is ready for Apple's challenge, offering a far broader range of high-end products.
That would give a far broader range of American voters a say in this vitally important choice.
The fall in bond yields has extended to a far broader range of debt than just government paper.
Or, with a housing crisis affecting even working people on middle incomes, should it cater to a far broader range of people today?
Producers need smaller numbers to succeed, but they face a far broader range of competition, including television's own past, which plays continuously (including reruns of "The Beverly Hillbillies").
Products like Guitar Hero, Rock Band, Bejeweled, The Sims, Brain Age, World of Warcraft and, not least, the Wii, have attracted a far broader demographic range to gaming.
In stripping away all considerations outside quality, crowdsourcing operates under the most optimistic of assumptions: that each one of us possesses a far broader, more complex range of talents than we can currently express within current economic structures.
Furthermore, this study provides evidence that industry may be employing a far broader and possibly more influential range of strategies to promote their products during matches.
The installing, tweaking and maintaining of that technology in specific industries involve a far broader base of workers with a range of training, skills and education.
So far, a broad range of more than fifty different prim- and sec-alkyl sulfate esters tested as substrates were successfully converted to the corresponding alcohol with inversion or retention of configuration, depending on the source and nature of the enzyme.
