Yaqin MS-30L is the same than MC-30L Infrared remote control for volume adjustment TR/UL (Triode and Ultra Linear modes) switches on the front panel Headphone output jack on the front panel External bias adjustment Better than Jolida 302
Highlights: High voltage power supply for the automatic delay control, can effectively extend tubes life. Switch ultra-linear (UL) and triode (TR) connection mode Function with remote control and high quality headphone output.
Highlights : It use the best Ultra-linear Push-pull amplifier circuit Preamplifier use SRPP amplification circuit and Nagao-type inverter circuit, make it let the audio frequency wide, distortion is small. headphone amplification part
This pre-amp headphone amp use high level compontens with output transformers like a pure tube amplifier to protect your headphone and give you headphone a full hifi level sound quality, prefect match with almost 99% high level headphone special such like HD650 HD800,