The best technicians I have tried are pdvd members, they may not be from the South (Alabang, Las Pinas, Paranaque) but travel to get to them is well worth it: @markcrenz (he repaired my Audiolab cd player with DAC and preamp) - he has no shop, he repairs in his house in Congressional Village QC, his contacts are on this site and Melvin (dealer of Musical Fidelity and other high end audio gears, his technician repaired my MF amp) his store is along 15th Avenue in Cubao.