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KINGREX PRE AMP Pre Amplifier I have the little t20u and psu and would love to have the pre amp to almost complete the little picture. Fun little amazing sounding gear. Condition: Excellent / Mint Payment Method: Region/State: (VIC) Victoria/Australia By neighbourhoodstud.io 11 Comments AUD $300 Date: December 27, 20241 yr
Verdict on Price
At AUD 300, this is a fair-to-good ask for a used original KingRex Pre-Amp (circa 2008). The model earned solid reviews as a budget-conscious performer—TNT-Audio praised it as "a bargain" with genuine hi-fi chops for the money. Used examples typically trade in the AUD 250–400 range depending on condition and included accessories. This listing sits comfortably mid-market; not a steal, but not inflated either. If the unit is clean and fully functional, it represents decent value for someone building an affordable system without breaking the bank.
What to Verify Before Buying
Check that all original documentation and the power supply are included—replacement PSUs can be hard to source and costly. Have the seller confirm the unit powers up cleanly, that inputs and outputs are secure, and that there's no crackling or channel imbalance through the volume control. These preamps are robust, but aging potentiometers and loose connectors are the most common wear points. Also clarify the burn-in history; a recently powered-up example after storage may need a few hours to settle before you judge the sound.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Kingrex Audio, from Kingrex Technology Co., Ltd., traces its origins to Taiwan, where it was founded in 2000 as a design house and manufacturer initially focused on diverse electronics like PDA batteries, memory modules, and ODM game machines. The company soon pivoted toward PC HiFi solutions, establishing itself as a trend-leading designer for digital streaming devices in the audio realm. Based in Taipei, Kingrex embodies a heritage of innovative engineering that bridges consumer tech with high-performance sound reproduction.
The brand specializes in compact, feature-packed digital audio components, including USB DACs, integrated amplifiers like the acclaimed T20 and T20U models, preamps, linear power supplies, and specialized accessories such as the UArt USB Y-cable. These products target desktop and small-system setups, emphasizing seamless computer-to-DAC integration and clean power delivery, often defying expectations through their modest footprints.
Kingrex holds a niche boutique position in the hi-fi market, celebrated for delivering high-end sonic performance at accessible prices—described as "HiEnd but not high price." Reviewers praise its gear for musical feats that punch above its weight, appealing to discerning buyers seeking value-driven excellence in digital playback rather than luxury extravagance.
See all Kingrex Audio listings on RADAR.
