Cayin HA-2A Tube Headphone Amplifier

Cayin HA-2A Tube Headphone Amplifier

Precisely Crafted Amplifier with Vintage Vacuum Tubes
A carefully engineered circuit with five vintage NOS vacuum tubes

The amplifier has a stunning sound, rich in detail, with a wide soundstage and excellent musicality. It also offers the unique mellowness and warmth of vintage NOS vacuum tubes.

Specialized Single-ended Class A Tuning

The Cayin engineers have designed an amplification circuit in single-ended Class A to take full advantage of the characteristics of each NOS vacuum tubes.

Through ingenious design and carefully planned wiring, Cayin preserved the balanced, mellow, warm sound and rich harmonic characteristics during the tuning processes.

Multi-stage filtering and low-noise FET voltage regulating circuit, along with in-house developed Z11 core EI output transformer, achieve perfect driving for headphone loads.

Critical Core-Competence in Making Tube Amplifier
In-house Developed Wide-bandwidth Transformers

Transformer plays a vital role in transformer coupled vacuum tube amplifier. The design and implementation of transformers become an important part of Cayin's product tuning.

The output transformer and power transformer use high-quality wide-bandwidth EI transformers specially developed for HA-2A. They use Z11 EI type iron core from Japan, and are wounded using Cayin's precise hand-winding process.

With a fully enclosed metal casing and resin sealing, these transformers deliver ample power with high efficiency and extremely low distortion because the magnetic field interference has been reduced to a satisfactory level.

Fully Optimized Headphone Outputs

To meet all your headphone needs and facilitate a satisfactory musical journey in any occasions, Cayin support a vast variety of headphones in the markets by providing choice of connectors, output powers and impedance.

Impedance Matched Headphone Output
HA-2A provides 3 headphone impedance settings, and the amplifier will optimized its output to handle the headphone loading according to the headphone impedance settings. Matching headphone impedance produce a natural sound with well-defined bass. User can experiment other impedance settings according to their preference.

Versatile Headphone Connections
HA-2A provides 3 headphone sets of headphone connectors, two balanced driven and one single-ended The 4-pin XLR connection provides the highest output that can handle the more demanding headphones. The 4.4mm connections is optimized for wider application range, including high sensitivity portable headphones.

2 x Analog Inputs: XLR and RCA
Can be used with CD players, DAC, portable players, and any audio devices with line level output

Reference Grade Craftsmanship Point-to-Point Wiring
All Cayin vacuum tube amplifiers are point-to-point wired to ensure shortest signal path and better attention to detail, the entire circuitry is hand wired by skillful craftsmen.

The internal circuits of the HA-2A, from tube connections to resistors and capacitors, are soldered and carefully routed using premium internal wirings to enhance signal transmission speed and low interference throughout the entire circuit.

Exquisite, Refined and Delightful Aesthetics
The design language of the HA-2A remains consistent with the Cayin 888 3-pieces suit, allowing for seamless integration with the iDAP-8 Digital Streamer and the ¡DAC-8 DAC to form a compact desktop system with compatible function, brilliant audio performance and harmonious aesthetics.

With overall dimensions of just 270mm x 247mm x 143mm and a weight of only 10kg, it is compact and lightweight, allowing for convenient placement and integrating with existing gears. Dual VU meters with white backlit Retro, dynamic motion and eye-catching.

The chassis undergoes a complex 14-step metal finishing and painting process (5 rounds of spraying + 6 rounds of sanding + 2 rounds of scrape coating + final baking) to achieve a bright and uniform color with fine contours. A high-density molecular protective film ensures the amplifier can remains premium condition after extensive usage.

Vacuum Tube Protection Cage
Protects the vacuum tube, reduce interference and prevents inadvertent contact with the heated vacuum tube during operation.

Anti-vibration Anti-interference
Reinforced chassis base to minimize microphonic ringing due to impact, vibration and other interference on the vacuum tube.

60 seconds Start-up Delay Circuit
Protect the amplification circuit Minimize pop noise during start up Ensure vacuum tube are warmed up to optimized condition before playback.