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Cayin HA-3A 6V6s Transformer-coupled Vacuum Tube Headphone Amplifier

⭐ [Stars Review] https://starspickeraudio.net/blogs/blog/cayin-ha-3a-transformer-coupled-vacuum-tube-headphones-amp

When exquisite design accomplished by first class engineering, when aesthetic backed up by rigorous production.

The HA-3A vacuum tube headphone amplifier let you enjoy your beloved music through your choice of headphones or earphones in a dedicated, engaging, and indulging retreat.

HA-3A might look compact and simple, but Cayin has devoted our renowned engineering, decades of audio equipment manufacturing and carefully selected performance-based components to make this happen.

Clean Power with Minimum Interference
HA-3A uses an RCA 22DE4 as rectifier tube, one of the best versions of 22DE4 available in tube market.
While converting incoming power source to DC current, the 22DE4 rectifier tube minimises interference and provides clean power to the amplification circuit.

Carefully Selected and Hand-matched Vacuum Tubes
Driver tubes: Dual 12AU7/ECC82 (Matched Pair) from JJ*
Output tubes: Dual 6V6S (Matched Pair) from JJ*

* Cayin might adopt other vacuum tubes with compatible specification and quality without prior notice.

Single-ended Vacuum Tube Circuit
The HA-3A vacuum tube amplification is designed as a 2-stage single-ended circuit.
The 12AU7/ECC82 driver tubes will amplify the voltage level of the incoming audio signal so that the 6V6S output tubes will eprform its amplification at a very linear condition.
Single-ended circuit design displaces the beautiful tone of your vacuum tubes without any cancellation.
Single-ended uses matched pair instead of matched quad-set tubes, you can enjoy greater flexibility when you perform tube rolling.

Specification

[Amplifier]

Input Connector: XLR x2, RCA x2
Tube (output): JJ 6V6S x2
Tube (driver): JJ 12AU7/ECC82 x2
Tube (rectifier): RCA 22DE4 x1
Dimensions: 306mm x 260mm x 170mm
Net Weight: 12kg
Fuse ~220V-240V: T1 AL250V
Fuse ~100V-120V: T2 AL250V
Output Tube Fuse: T1 25mAE250V
Power Consumption: 80W
Working Condition: Temperature 0~40 celsius; Humidity: 20-80%
Storage Condition: Temperature -20~70 celsius; Humidity: 20-90%

[Headphone Output]

Rated Output per Channel (4-Pin XLR BAL): 600mW (L); 750mW (M); 850mW (H)
Rated Output per Channel (4.4mm BAL): 230mW (L); 350mW (M); 400mW (H)
Rated Output per Channel (6.35mm SE): 400mW (L); 600mW (M); 700mW (H)
Frequency Range: 18-30kHz +/-3dB
THD+N: 0.2% (1kHz, 200mW)
Sensitivity: 300-480mW
S/N Ratio: 100dB (A-weighted)
Headphone Impedance: L: 8-64ohms; M: 65-250ohms; H:251-600ohms
Headphone Connector: 4pin XLR x1, 4.4mm x1, 6.35mm x1