Between S$1,000 to S$5,000 Ayre AcousticsCodex PrimaLunaEVO 100 Tube Integrated Amplifier PrimaLunaEVO 200 Tube Integrated Amplifier Between S$5,000 to S$10,000 Ayre AcousticsQX-8 PrimaLunaDiaLogue Premium HP Integrated Amplifier PrimaLunaEVO 300 Tube Integrated Amplifier PrimaLunaEVO 400 Tube Integrated Amplifier Ayre AcousticsQX-8 PrimaLunaDiaLogue Premium HP Integrated Amplifier PrimaLunaEVO 300 Tube Integrated Amplifier PrimaLunaEVO 400 Tube Integrated Amplifier Above S$10,000 Ayre AcousticsQX-5 Twenty Conrad JohnsonHVA-1