Short answer: the Topping A30 Pro. Both are rated 4.8/5 (#1 and #3 of 19 headphone amplifiers), and the Topping A30 Pro costs $349.99 against $499 for the Topping A70 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 catch: It is an analog only amp with no USB or other digital input, so you need a separate DAC.
What the Topping A70 Pro does well: Audio Science Review measured 121 dB SINAD, so its noise and distortion are transparent. Watch for: It is a headphone amp only, so it needs a separate DAC.
Buy the Topping A30 Pro. Both are rated the same, and it costs $149.01 less than the Topping A70 Pro.
Looking for alternatives? See the complete Headphone Amps and DACs rankings.
Specifications Side By Side
| Topping A30 Pro | Topping A70 Pro | |
|---|---|---|
| Price | $349.99 | $499.00 |
| Ranked | #1 of 19 in Headphone Amplifiers | #3 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) | 12,600 mW (manufacturer rated, balanced) |
| Output Power (300 ohms) | 840 mW (manufacturer rated) | 1,370 mW (manufacturer rated, balanced) |
| Headphone Outputs | 6.35 mm, 4-pin XLR, 4.4 mm | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Balanced Output | Yes (4-pin XLR, 4.4 mm) | Yes (4.4 mm, 4-pin XLR, XLR line out) |
| Inputs | RCA, XLR | RCA, XLR/6.35 mm TRS combo |
| Outputs | RCA pass-through, 6.35 mm TRS pass-through | RCA, XLR |
| Volume Control | Hardware knob | Hardware knob |
| Dimensions | 6.9” x 1.8” x 5.4” (174 x 45 x 138 mm) | 8.7” x 1.9” x 6.9” (222 x 48 x 176 mm) |
| Weight | 1.9 lbs (870 g) | 2.8 lbs (1,270 g) |
Related Amp and DAC Comparisons
More worthwhile head-to-heads for Topping A30 Pro:
- Topping A30 Pro vs Topping A50 III
- 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 A50 III
- 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 A70 Pro: $499.00 Amazon eBay
Pros: Audio Science Review measured 121 dB SINAD, so its noise and distortion are transparent. A rated 12.6 W balanced into 32 ohms and 1.37 W into 300 ohms is enough for nearly any headphone, through 6.35 mm, 4.4 mm and 4-pin XLR outputs, and it has XLR and RCA preamp outputs for powered speakers.
Cons: It is a headphone amp only, so it needs a separate DAC. The Topping A50 III matches its rating and SINAD for far less, with power that is still plenty for planar magnetics.
Full Topping A70 Pro review and specifications →
| Released | May 2023 (3 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, 4-pin XLR, XLR line out) |
| Device Type | Headphone amp |
| Dimensions | 8.7” x 1.9” x 6.9” (222 x 48 x 176 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | RCA, XLR/6.35 mm TRS combo |
| Output Power (300 ohms) | 1,370 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 12,600 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 2.8 lbs (1,270 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Topping A70 Pro vs Topping A50 III
- Topping A70 Pro vs Topping A90 Discrete
- Topping A70 Pro vs Schiit Midgard
- Topping A70 Pro vs SMSL VMV P2
- Topping A70 Pro vs Topping L30
- Topping A70 Pro vs Topping L50
- Topping A70 Pro vs JDS Labs Atom Amp 2
- Topping A70 Pro vs Tom Christiansen Audio HPA-1
- See all 12 comparisons