Short answer: the Topping A50 III. Both are rated 4.8/5 (#2 and #1 of 19 headphone amplifiers), and the Topping A50 III costs $199 against $349.99 for the Topping A30 Pro, with the ratings tied, the lower price decides it.
Why pick the Topping A30 Pro: Audio Science Review measured 121 dB SINAD, so its noise and distortion are inaudible. The tradeoff: It is an analog only amp with no USB or other digital input, so you need a separate DAC.
What the Topping A50 III does well: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible. The tradeoff: It is an amp only, so you need a separate DAC.
Buy the Topping A50 III. Both are rated the same, and it costs $150.99 less than the Topping A30 Pro.
Still deciding? The full Headphone Amps and DACs rankings cover every ranked option.
Specifications Side By Side
| Topping A30 Pro | Topping A50 III | |
|---|---|---|
| Price | $349.99 | $199.00 |
| Ranked | #1 of 19 in Headphone Amplifiers | #2 of 19 in Headphone Amplifiers |
| Device Type | Headphone amp | Headphone amp |
| SINAD | 121 dB (measured by Audio Science Review) | 121 dB (measured by Audio Science Review) |
| Output Power (32 ohms) | 5,500 mW (manufacturer rated) | 3,500 mW (manufacturer rated, balanced) |
| Output Power (300 ohms) | 840 mW (manufacturer rated) | 760 mW (manufacturer rated, balanced) |
| Headphone Outputs | 6.35 mm, 4-pin XLR, 4.4 mm | 6.35 mm, 4.4 mm balanced |
| Balanced Output | Yes (4-pin XLR, 4.4 mm) | Yes (4.4 mm) |
| Inputs | RCA, XLR | RCA, 6.35 mm TRS balanced |
| Outputs | RCA pass-through, 6.35 mm TRS pass-through | - |
| Volume Control | Hardware knob | Hardware knob |
| Dimensions | 6.9” x 1.8” x 5.4” (174 x 45 x 138 mm) | 4.9” x 1” x 5.5” (125 x 26 x 140 mm) |
| Weight | 1.9 lbs (870 g) | - |
Related Amp and DAC Comparisons
How Topping A30 Pro compares with other leading options:
- Topping A30 Pro vs Topping A70 Pro
- Topping A30 Pro vs Topping A90 Discrete
- Schiit Midgard vs Topping A30 Pro
- SMSL VMV P2 vs Topping A30 Pro
- Topping A30 Pro vs Topping L30
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Amps and DACs In Full
Topping A30 Pro: $349.99 HiFiGo eBay
Pros: Audio Science Review measured 121 dB SINAD, so its noise and distortion are inaudible. Topping rates it at 5,500 mW into 32 ohms and 840 mW into 300 ohms, enough power for nearly any headphone, with 6.35 mm, 4-pin XLR and 4.4 mm balanced outputs plus RCA and XLR inputs. Pass-through outputs let it sit in a chain ahead of speakers.
Cons: It is an analog only amp with no USB or other digital input, so you need a separate DAC. The Topping A50 III rates the same with the same measured SINAD for less.
Full Topping A30 Pro review and specifications →
| Balanced Output | Yes (4-pin XLR, 4.4 mm) |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 6.9” x 1.8” x 5.4” (174 x 45 x 138 mm) |
| Headphone Outputs | 6.35 mm, 4-pin XLR, 4.4 mm |
| Inputs | RCA, XLR |
| Output Power (300 ohms) | 840 mW (manufacturer rated) |
| Output Power (32 ohms) | 5,500 mW (manufacturer rated) |
| Outputs | RCA pass-through, 6.35 mm TRS pass-through |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 1.9 lbs (870 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Topping A30 Pro vs Topping A70 Pro
- Topping A30 Pro vs Topping A90 Discrete
- Topping A30 Pro vs Schiit Midgard
- Topping A30 Pro vs SMSL VMV P2
- Topping A30 Pro vs Topping L30
- Topping A30 Pro vs Topping L50
- Topping A30 Pro vs JDS Labs Atom Amp 2
- Topping A30 Pro vs Tom Christiansen Audio HPA-1
- See all 10 comparisons
Topping A50 III: $199.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible. A rated 3.5 W into 32 ohms and 760 mW into 300 ohms from its balanced output is enough for nearly any headphone. It has 6.35 mm and 4.4 mm balanced outputs and costs less than the Schiit Midgard at the same rating.
Cons: It is an amp only, so you need a separate DAC. Its balanced input uses 6.35 mm TRS rather than XLR, and there are no line outputs for passing the signal on to speakers.
Full Topping A50 III review and specifications →
| Released | Mar 2024 (2 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm) |
| Device Type | Headphone amp |
| Dimensions | 4.9” x 1” x 5.5” (125 x 26 x 140 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | RCA, 6.35 mm TRS balanced |
| Output Power (300 ohms) | 760 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 3,500 mW (manufacturer rated, balanced) |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons