Cayin HA-300 Tube Headphone 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.

Features:

• Best possible integration of balanced and singled-end signal processing:
• Input Transformer(for Bal input)-> Push-pull Single-end Amplification-> Output Transformer (for Bal output)
• Two-box design with multi-stage tubes and regulated power supply
• Carefully selected premium tubes
• Power Amplification: Full Music gold pins ceramic base 300B x2
• Voltage Amplification: Shuguang WE6SN7 replica of Western Electric x2
• Tube Rectification: NOS RCA 22DE4 rectifier tubes x4
• Designed in-house and features custom built power, input and output transformers
• Choice of 3 headphone outputs for high, middle and low impedances makes sure all headphones will perform to its maximum
• Point-to-point wielding to ensure shortest signal path and enhance the transparency and refinement of audio performance
• High quality shield silver-plated internal cable to minimize interference during transmission
• High-precision 24 steps potentiometer to provide low noise, high-precision volume control.
• US Aviation standard sockets and connectors for outboard power supply connection
• Beautifully designed and crafted VU meter
• Supports balanced XLR and single-ended RCA inputs