AA3PRO — Full Specifications
| Parameter | Value |
|---|---|
| Model | AA3PRO |
| Type | Class A Pure Power Amplifier (requires preamp/DAC with volume control) |
| Power Output (8Ω, <1% THD) | 220W ×2 |
| Power Output (4Ω, <1% THD) | 280W ×2 |
| Damping Factor | 700 |
| SNR | 123dB |
| THD (2W) | 0.003% |
| Frequency Response | 10Hz-80kHz ±0.005dB |
| Noise Floor (single-ended) | 120μV |
| Noise Floor (balanced) | 40μV |
| Power Transistors | 24 (12 pairs, Sanken high-power) |
| Input Impedance | 10KΩ |
| Inputs | RCA ×1, XLR ×1 |
| Outputs | Heavy-duty gold-plated binding posts (Bi-Wire capable) |
| Transformers | Dual O-core (custom, pure copper wound) |
| Rectification | Schottky (fast recovery, low noise) |
| Circuit | Honeycomb Symmetry 2.0 (fully balanced, fully symmetrical) |
| Display | Voltage monitoring meters (real-time power status) |
| Weight | ~18kg |
| Price | ¥13,998 (~$1,950 USD) |
Competitive Positioning
| Amp | Power (8Ω) | Class | Price |
|---|---|---|---|
| TRASAM AA3PRO | 220W×2 | Class A | ~$1,950 |
| McIntosh MA5300 | 200W×2 | Integrated | ~$4,500 |
| NAD M23 | 200W×2 | Class D Pure | ~$2,100 |
| Marantz Model 30 | 200W×2 | Integrated | ~$3,000 |
Recommended Speaker Pairings
- ATC SCM40 (88dB, 50-300W) — 220W is the sweet spot for ATC’s demanding load
- ATC SCM50 (85dB, 100-1500W) — 220W sufficient for rooms up to 30㎡
- PMC Twenty5.24 (87dB) — damping factor 700 controls transmission line bass tightly
- Dynaudio Special Forty (86dB, 6Ω) — dual O-core transformers deliver clean current for Dynaudio’s 4Ω dips
- Jinlang Leshen 8 (89dB, dual 10-inch woofers) — flagship drives flagship