Michael Eavis has withdrawn comments made at last weekend's festival which suggested the Pyramid Stage soundsystem was not up to the task.
The Glastonburyboss originally blamed the company that own the system, following complaints by fans and chants of "turn it up" during The Killers' headline set.
But after studying a report by the site environmental team, Eavis has been forced to backtrack on his comments.
Instead, it's been revealed that the authorities ordered the system be turned down because the noise was travelling too far towards outlying villages.
According to a statement by the Glastonbury Festival: "Unusual meteorological conditions caused abnormally high off site noise measurement levels which needed to be reduced swiftly in order to comply with the terms of the licence.
"This led to the sound engineers on the Pyramid Stage being directed by the authorities to dramatically reduce the sound level for the Killers as the fastest route to attain this."
There were a number of complaints about the quality of sound at the Pyramid Stage over the weekend, however none more so than during Saturday night's headline set by The Killers.
The band have since suggested they will never play the festival again because it was such an honour to do so this year.
But that will do nothing to appease fans standing at the back, some of whom have claimed it was impossible to hear anything other than people singing at the front. Sound levels were eventually turned up during the second half of the set after organisers became concerned by frustrated fans pushing forward.
Claiming the sound crew had little choice, Festival Sound Co-ordinator Chris Beale said: "The crew that worked on the Pyramid Stage sound system were second to none; in fact one of the fastest, most organised and professional teams that I have ever had the privilege to work with.
"The press reports about the sound levels on Saturday evening for the Killers are unfair to those people and to the system. The environmental team were limiting sound levels all over the site but the main stage system was restrained to the point where it was unworkable."
He added: "The Who's sound on Sunday was 103dBA at the console and carried loud and clear to the rear of the arena, whilst the offsite levels were 5dBA lower than they had been the previous evening."
Miti Adikhari, BBC Sound Supervisor and senior mix engineer for the festival, said: "I had a listen to the system at several points over the weekend and I thought it sounded great."
The festival claims it had to strike a fair balance between achieving acceptable sound levels for festival audiences, whilst respecting local residents' concerns about noise. The festival was granted a four-year license earlier this year on the basis that agreed sound levels at points outside the festival were not breached.