Cayin iHA-6 Fully Balanced High Fidelity Headphone Amplifier USA Warranty

Up for consideration is an open box Cayin iHA-6 headphone amp.
The iHA-6 offers multiple connectivity options. Two XLR input jacks for balanced analog input and two RCA inputs for general connectivity. With a quadruple amplifier setup for a powerful balanced output, two separate XLR / TRS combo jacks for each channel and a 4-pin XLR port for balanced audio makes this Amplifier perfect for High-grade and high impedance headphones. You can plug in any power headphone into the dedicated high and low impedance slots. An Alps brand 4-gang volume pot attests to the "true" balanced nature of the design.

The balanced output, however, is quite capable with any headphone you throw at it. And I do mean ANY headphone.

• push-pull amplification design with high power ultra-low on-resistance power MOSFET at power amplification stage, offers excellent dynamic performance.

•  Toshiba audio-grade FET were used in differential input circuit, to ensure common-mode noise and high quality audio performance

•  Premium grade ALPS 4 channel rotary potentiometer imported from Japan directly, durable, reliable and reputable audio quality.

•  Extensive protection to amplifier and headphone through comprehensive protection circuit including output DC offset voltage, delay mute when power up, and noise compensation when power down.

•  In-house designed premium grade toroidal transformer with low magnetic leakage and high power efficiency.

•  High capacitance filter capacitors were used (in excess of 40000uF)

•  Solid chassis with aluminum alloy and sand blast finishing, can eliminate exterior interference effectively.