Cayin HA-300 Heaphone Amplifier
Cayin's HA-300 came about as an 18 month expedition to create a headphone amplifier that would meet the expectations of audiophiles.
To deliver on that promise, the HA-300's circuitry was designed to utilize the musical fidelity of the 300B tubes, powered by custom-built transformers to create perfectly balanced output through the headphones. The amplifier also utilizes a two-box design; a dedicated tube-controlled power supply and the amplifier. To add to Cayin's traditional high standards of quality, this amplifier is built with US-Aviation grade electrical plugs and RC22DE4 rectifier tubes to provide clean DC power to the 300B tubes. All in all, the HA-300 amplifier is a powerful workhorse that will live up to the hopes of audiophiles.
Review by Dave Hanson
|Device:||300B Tube Headphone Amplifier|
|Input Connectors:||XLR or RCA|
|Tubes:||2 x 300B, 2 x 6SN7, x 4 x 22DE4|
|Frequency range:||10 Hz - 60 kHz (+/- 3 dB)|
|Total harmonic distortion (THD):||1% (1 kHz)|
|Unweighted signal-to-noise ratio:||100 dB|
|Input impedance:||100 kOhm|
|Input sensitivity:||440 mV|
|Output power (RMS):||8W + 8W Class A|
|Input power:||120 VAC|
|Dimensions:||Amplifier: 286mm x 368mm x 210mm |
PSU: 59mm x 345mm x 210mm