The HEADQUARTER (HQ-1) headphone amp set is furnished with two chassis designs: piano glass paint steel complemented with red anodized, hair-brushed aluminum front panel for trendsetting style, and sandy-blast paint steel with black anodized, hair-brushed aluminum front panel for the timeless chassis look(18X45X55mm).

KingRex new – HEADQUARTERS (HQ-1) is in Class A MOSFET design is general-purpose desktop headphone amplifier.
HQ-1 has one input and two outputs which is selectable by front panel push button- one is line-output and another is phone-output.
Gold-plated NEUTRIK 6.35mm headphone jack and gold-plated RCA terminals for provide great contact.

The interior circuitry consists by first stage transistor –Toshiba A970/C2240 for first stage amplification and output stage by Hitachi MOSFET 2SK214.
Featuring Hi Fi grade Panasonic FM capacitor as main filter brings the transparent background and balanced soundstage ; input capacitor choose WIMA increase acoustic density; output capacitor choose Vishay for more neutral and delicate details. All material choose for neutral, balance, details, rich musicality, and vivid tuning.
Original ALPS potentiometer for provide the best signal for sonic purity.

Input/ output signal path setting use FURUKAWA PCOCC which brings more expansive and warm sound.
Discreet external linear power design- highly current supplied toroidal transformer, LMS1585 constant voltage regulator, total 8pcs Hi-Fi grade Nippon Chemi-Con Electrolytic capacitor in total capacity 25100uF(5 x 2,200 uF at AC input stage; 3 x 4,700uF at DC output stage) through NEUTRIK XLR socket all design stream out fully power to fit active dynamic demands.

Two style chassis design : Chassis design by piano glass paint steel 180 x 138 x 45mm with aluminum red anodized panel in hair polishing.