Topping A30 Pro Headphone Amplifier
Next-Gen, No-Noise Headphone Amplification
It’s taken Topping nearly 4 years to release a successor to the highly regarded A30 headphone amplifier. With marked improvements in output power, input options, and noise reduction, the A30 Pro has been worth the wait. Capable of outputting an impressive 6 watts per channel at 16 ohms, 5.5 watts at 32 ohms, and 820 milliwatts at 300 ohms, the power-loaded Pro can easily drive any pair of headphones. Best of all, it can do so with no noise. Its THD + N rating of 0.00006-percent is among the best in its class, while its onboard ground lift switch eliminates ground loop noise instantly. Equipped with UHGF (ultra high gain feedback) technology and an NFCA-based circuit, the A30 Pro also boasts 145 decibels of dynamic range—plus a three-stage gain selector. Connect to a host of single-ended and balanced inputs (with bypass when powered off) to bring your headphones to life.
Model
Black
Silver
Specs
General
- Topping
- Output power: 6 W x 2 (16 ohms, THD+N <0.1%); 5,500 mW x 2 (32 ohms, THD+N <0.1%); 840 mW x 2 (300 ohms, THD+N <0.1%)
- Inputs: XLR (left and right), RCA
- Outputs: 4-pin XLR, 4.4 mm, 6.35 mm
- Bypass output (when power off)
- Passthrough outputs: 6.35mm TRS (left and right), RCA
- THD+N: < 0.00006%
- Noise: < 0.3 uVrms
- Power: 100 – 240 VAC, 50 Hz / 60 Hz
- Gain settings: Low (-14 dB), Medium (0 dB), High (+14 dB)
- Power consumption: < 9 W
- Adapter impedance: > 8 ohms
- Weight: 1.9 lbs (0.87 kg)
- Dimensions: 6.85 x 5.4 x 1.7 in (17.4 x 13.8 x 4.5 cm)
Single-Ended Input
- THD + N (1 kHz A-weighted): <0.00007% (3.5 W, 32 ohms); <0.00006% (90 mW, 300 ohms)
- THD (20 Hz – 20 kHz, 90 kBW): <0.00008% (760 mW, 32 ohms); <0.00007% (81 mW, 300 ohms)
- SNR (maximum output, 1kHz A-weighted): 145 dB
- SNR (50 mV output, 1kHz): 104 dB
- Dynamic range (1 kHz A-weighted): 145 dB
- Frequency response: 20 Hz – 40,000 Hz (± 0.05 dB)
- Output level: 34 Vpp (low gain), 34 Vpp (medium gain), 45 Vpp (high gain)
- AP-measured noise level (A-weighted): < 0.7 uVrms (low gain), 0.7 uVrms (medium gain), 1.2 uVrms (high gain)
- Actual noise level: < 0.3 uVrms (low gain), < 0.3 uVrms (medium gain), < 0.9 uVrms (high gain)
- Channel crosstalk (1 kHz): -106 dB
- IMD CCIF (18 kHz + 19 kHz): -116 dB
- IMD SMPTE (60 Hz + 7 kHz): -110 dB (SMPTE 4:1), -115 dB (SMPTE 1:1)
- Input sensitivity: 60 Vrms (low gain), 12.6 Vrms (medium gain), 2.7 Vrms (high gain)
- Gain: -14 dB (low gain), 0 dB (medium gain), 14 dB (high gain)
- Output impedance: < 0.1 ohms
Balanced Input
- THD + N (1 kHz A-weighted): <0.00007% (3.2 W, 32 ohms), <0.00006% (86 mW, 300 ohms)
- THD (20 Hz – 20 kHz, 90 kBW): <0.00008% (760 mW, 32 ohms), <0.00007% (81 mW, 300 ohms)
- SNR (maximum output, 1kHz A-weighted): 140dB
- SNR (50 mV output, 1kHz): 104 dB
- Dynamic range (1 kHz A-weighted): 140 dB
- Frequency response: 20 Hz – 40,000 Hz (± 0.1 dB)
- Output level: 6.6 Vpp (low gain), 34 Vpp (medium gain), 45 Vpp (high gain)
- AP-measured noise level (A-weighted): < 0.7 uVrms (low gain), < 0.7 uVrms (medium gain), 1.2 uVrms (high gain)
- Actual noise level: < 0.3 uVrms (low gain), < 0.3 uVrms (medium gain), < 1.1 uVrms (high gain)
- Channel crosstalk (1 kHz): -101 dB
- IMD CCIF (18 kHz + 19 kHz): -116 dB
- IMD SMPTE (60 Hz + 7 kHz): -110 dB (SMPTE 4:1), -116 dB (SMPTE 1:1)
- Input sensitivity: 12.7 Vrms (low gain), 12.7 Vrms (medium gain), 2.7 Vrms (high gain)
- Gain: -14 dB (low gain), 0 dB (medium gain), 14 dB (high gain)
- Output impedance: < 0.1 ohms
Manufacturer’s Note
- The actual noise level is obtained by boosting the noise of the A30 Pro by 40 dB using a low noise amplifier in front of the APx555B and then dividing the measured noise by 100 times
Included
- AC power cable
- 6.35 mm to 3.5 mm adaptor
- Owner’s manual
Shipping
Estimated ship date is Jan 3, 2025 PT.
Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout, after which all sales final.
