The HPA-21 is a truly unique product that is the world’s one and only current driving headphone amplifier.
By incorporating the SATRI Circuit technology, our years of R&D effort in current amplification technology is now perfectly refined for headphone listeners.
Unlike the conventional voltage driving method, the HPA-21’s current driving method achieves far superior driving precision, power and distortion level unmatched by any other available conventional headphone amplifiers. In addition, our latest analogue battery power supply technology has been meticulously analyzed and employed into the HPA-21, which further enhances the performance of the circuit to the next level.
If you demand the best headphone listening experience, look no further. The HPA-21 is here for you to meet your highest expectations.
iFi Audio micro iDSD
There is nothing like the micro iDSD. It is literally, out of this world. It is the only DAC in...
Specifications: Driver Type: Planar Magnetic Impedance @ 1kHz: 35 ohms Sensitivity: 94 dB...
Schiit Audio Bifrost DAC
Bifrost is the world's most affordable fully upgradable DAC, featuring 32-bit D/A conversion, a...
Specs Configured by Massdrop Manufactured by AKG Open-back construction Pre-selected dynamic...
Philips Fidelio X2
The Philips Fidelio X2 is an over-ear headphone, in a similar vein as the Fidelio X1.