Description
Revised 2026 Model.
Please note that all ‘Type UK’ models are specifically manufactured for Audio Emotion with 240v transformers (and not the EU standard 220/230 models).
We are pleased to introduce the new Cayin HA-300 MK3, the third-generation evolution of our flagship 300B tube headphone / speaker amplifier.
The HA-300 MK3 continues Cayin’s pure Class A, single-ended triode design, while bringing meaningful upgrades in circuit design, transformer performance, power supply architecture, component selection, and overall craftsmanship.
The result is a more refined, more stable, and more versatile flagship amplifier, with improved compatibility across a wider range of headphones, from sensitive IEMs to full-size high-end models.
Key highlights of the HA-300 MK3 include:
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New third-generation upgraded circuit design
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Upgraded power supply section for enhanced stability and lower noise
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Uses GZ34 / 5AR4 rectifier tubes, offering wider compatibility with a variety of alternative tubes for tube rolling
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Third-generation wide-bandwidth EI output transformers
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Third-generation toroidal power transformer
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Premium DUELUND coupling capacitors from Denmark
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Low-noise regulated voltage amplification stage
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Classic point-to-point hand wiring
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Balanced and single-ended headphone outputs
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RCA and XLR inputs
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Speaker output terminals
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High / Medium / Low impedance matching
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Refined new family-style industrial design with upgraded finish and detailing
The HA-300 MK3 comes equipped with:
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Genalex Gold Lion PX300B ×2
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JJ 6SN7 ×2
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JJ GZ34 / 5AR4 ×2
With its upgraded power supply implementation, expanded rectifier tube flexibility, elevated sonic performance, and refined new presentation, the HA-300 MK3 stands as an important new flagship model in Cayin’s tube amplifier lineup.
|
Type |
Item |
Specifications |
|
Headphone Output |
Rated Output (STD) |
6000mW + 6000mW |
|
Rated Output (4.4 BAL) |
1600mW + 1600mW (attenuated, suitable for most IEMs) |
|
|
Rated Output (4PIN BAL) |
6500mW + 6500mW |
|
|
Frequency Range |
12Hz ~ 35kHz ±3dB |
|
|
THD |
<1% (1kHz, 1500mW; Rated Output Power <5%) |
|
|
Sensitivity |
250mV ~ 1200mV |
|
|
S/N Ratio |
100dB (A-weighted) |
|
|
Input Impedance |
25kΩ (RCA), 12.5kΩ (XLR) |
|
|
Headphone Output Impedance |
L: 8~65Ω; M: 65~300Ω; H: 300~600Ω |
|
|
Headphone Output Jack |
6.35mm ×1; 4.4mm BAL ×1; 4PIN XLR ×1 |
|
|
Speaker Output |
Rated Output |
8W + 8W |
|
Frequency Response |
10Hz ~ 35kHz ±3dB |
|
|
THD |
<1% (1kHz, 3W; Rated Output Power <5%) |
|
|
S/N Ratio |
102dB (A-weighted) |
|
|
Input Sensitivity |
1300mV |
|
|
Output Impedance |
4~8Ω |
|
|
Others |
Input Connector |
XLR ×1, RCA ×1 |
|
Tube Used |
JJ 6SN7 ×2; Genalex PX300B ×2; JJ GZ34/5AR4 ×2 |
|
|
Dimension |
Power Supply: 159 × 345 × 205 mm; Amplifier: 286 × 368 × 205 mm |
|
|
Net Weight |
Power Supply: 10kg; Amplifier: 16.8kg |
|
|
Fuse |
~220–240V: T1.6AL250V; ~100–120V: T3.15AL250V |
|
|
External Fuse (300B) |
T100mAE250V |
|
|
Power Consumption |
160W MAX |
|
|
Working Condition |
Temperature: 0°C ~ 40°C; Humidity: 20% ~ 80% |
|
|
Storage Condition |
Temperature: -20°C ~ 70°C; Humidity: 20% ~ 90% |
Manufacturer Site
- Cayin
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