Complete Balanced Signal Path: 4 preamplifiers + 4 power amplifiers + 4-layer PCB + 4-channel balanced potentiometer, for true balanced amplification from input to output.
Zero Noise Upgrade: Eliminated the faint background noise of the previous generation, achieving zero hum at max volume on both RCA and XLR inputs (only extremely sensitive IEMs may hear faint white noise).
Improved Separation & Extension: New power amplifier circuitry boosts high-frequency extension and channel separation by over 20dB for pinpoint imaging.
Standard Version: 20W×2 @ 32Ω
High-Power Version: 35W×2 @ 32Ω / 40W×2 @ 8Ω
Drives headphones from 8Ω to 2kΩ (0.5W×2 @ 2kΩ)
THD+N < 0.003% @ 21W×2 / 32Ω
THD+N < 0.0006% @ 4.5W×2 / 32Ω
Massive Output Swing: Raised rail voltage to ±28V, delivering 99V p-p balanced output for dynamic peaks.
Independent Regulation: Separated front-end and back-end regulation circuits, reducing ripple by 30% and boosting headphone output SNR to 130dB.
Standard: 80VA multicomp transformer (Sri Lanka)
High-Power Version: Custom 120VA ultra-low-loss amorphous core transformer (static current < 3mA, no vibration noise)
Multiple Outputs: 6.35mm SE, 4.4mm balanced, and XLR balanced headphone jacks for full compatibility.
Preamp Function: Doubles as a high-performance balanced preamplifier for your active speakers or power amps.
|
Parameter |
Details |
|
Model |
Leaf Audio PA-05 MKII |
|
Output Power |
|
|
Standard Version |
20W × 2 @ 32Ω |
|
High-Power Version |
35W × 2 @ 32Ω / 40W × 2 @ 8Ω |
|
Max Output (6.35mm) |
4.5W @ 32Ω / 0.75W @ 300Ω |
|
Max Output (4.4mm/XLR) |
20W @ 32Ω / 3W @ 300Ω |
|
SNR (Signal-to-Noise Ratio) |
|
|
Preamplifier (RCA) |
-110dB @ IN 2V, OUT 2V RMS |
|
Preamplifier (XLR) |
-124dB @ IN 4V, OUT 4V RMS |
|
Headphone Out (6.35mm) |
-116dB @ IN 2V, OUT 1W / 32Ω |
|
Headphone Out (XLR/4.4mm) |
-130dB @ IN 6V, OUT 4.5W / 32Ω |
|
THD+N (Total Harmonic Distortion + Noise) |
|
|
Preamplifier |
0.0003% (RCA & XLR) |
|
Headphone Amp |
0.0006% @ 4.5W / 32Ω |
|
Output Voltage |
|
|
Balanced |
35V RMS (99V p-p) / CH |
|
Single-Ended |
17.5V RMS (49V p-p) / CH |
|
Frequency Response |
10Hz – 100kHz |
|
Input Impedance |
Supports XLR input signal up to 6V RMS |
|
Operating Voltage |
110V / 220V (switchable) |
|
Idle Power Consumption |
23W |
|
Max Power Consumption |
120W (standard) / 200W (high-power) |
|
Dimensions |
360 × 240 × 55 mm (L×W×H, excluding protrusions) |
|
Shipping Weight |
5.2 kg |
1 × Leaf Audio PA-05 MKII Fully Balanced Headphone Amplifier
1 × Power Cable
1 × User Manual
The following images are internal images. The materials used may change with changes in market supply without prior notice, but performance standards will be guaranteed.
