As You can guess from My handle i am an Airline Pilot i was in Hong Kong over last weekend i picked a set of Beyerdynamic DTX 510s for My son from Mingo-HMW via their Wanchai Hennessey Road branch.The service was exemplary and the Sales assistant,Ming was very honest and knew his stuff!I was allowed to try out as many pairs as i wanted with no pressure to purchase.I was thoroughly pleased with the service and Ming's superb knowledge-base.