After eventually removing the tape, the Ulsterman appeared in defiant mood.
Referring to his previous comments about Hearn, he said: "I don't think I said too much out of line. Obviously I swore, which is bang out of order and I apologise again for that, but I still stand by the rest of the things I said."
Earlier Allen claimed the 63-year-old had failed to fulfill a promise to keep the UK Championship and World Championship unchanged.
"Last time I checked, all the players had freedom of speech and that was my opinion at the end of the day," he told BBC Radio 5 live.
"If he wants to get offended with it that is his problem. If he wants to take legal action that is no problem, I will fight it all the way.
"It is a little bit childish. I thought Barry was a bit longer in the tooth than that for that sort of carry on."
Allen added that he would be prepared to discuss his differences with Hearn to avoid the dispute heading to the courts.
He has already clashed with fellow professional Stuart Bingham this season, accusing him of having "
no bottle and no balls
" at the Australian Goldfields Open in July.
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