Short answer: the JDS Labs Atom Amp 2, if you are buying new. The JDS Labs Atom Amp measures as well as it (#24 vs #20 of 41 headphone amplifiers, 4.7/5 vs 4.7/5) but is discontinued, so only consider it used; the JDS Labs Atom Amp 2 is still sold new at $129.
The case for the JDS Labs Atom Amp: Audio Science Review measured 114 dB SINAD, 1 W into 33 ohms and 250 mW into 300 ohms from a compact, inexpensive desktop amp, enough clean power for almost any dynamic headphone. The catch: Discontinued and replaced by the JDS Labs Atom Amp Plus, so it is mainly found used.
Why pick the JDS Labs Atom Amp 2: Audio Science Review measured a SINAD of 120 dB, so its noise and distortion are inaudible. Watch for: It has no DAC, so you need a separate source.
Buy the JDS Labs Atom Amp 2 new; the JDS Labs Atom Amp is no longer sold new, so it only makes sense as a used find.
Looking for alternatives? See the complete Headphone Amps and DACs rankings.
Specifications Side By Side
| JDS Labs Atom Amp | JDS Labs Atom Amp 2 | |
|---|---|---|
| Price | $99 Discontinued | $129 |
| Ranked | #24 of 41 in Headphone Amplifiers | #20 of 41 in Headphone Amplifiers |
| Device Type | Headphone amp | Headphone amp |
| SINAD | 114 dB (measured by Audio Science Review) | 120 dB (measured by Audio Science Review) |
| Output Power (32 ohms) | 1,000 mW (measured by Audio Science Review into 33 ohms) | 2,650 mW (manufacturer rated) |
| Output Power (300 ohms) | 250 mW (measured by Audio Science Review) | 286 mW (manufacturer rated) |
| Balanced Output | No | - |
| Inputs | RCA, 3.5mm | RCA, 3.5 mm |
| Headphone Outputs | - | 6.35 mm, 4.4 mm |
| Outputs | - | RCA |
| Volume Control | - | Hardware knob |
| Dimensions | - | 5.7” x 1.3” x 5.2” (145 x 34 x 131 mm) |
| Weight | - | 1 lbs (454 g) |
Related Amp and DAC Comparisons
More top alternatives to JDS Labs Atom Amp 2:
- Topping A30 Pro vs JDS Labs Atom Amp 2
- Topping A50 III vs JDS Labs Atom Amp 2
- Topping A70 Pro vs JDS Labs Atom Amp 2
- Schiit Midgard vs JDS Labs Atom Amp 2
- JDS Labs Atom Amp 2 vs Topping L30
Prices on this page were last checked October 14, 2026 at 2:38 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Amps and DACs In Full
JDS Labs Atom Amp: $99 Discontinued eBay
Pros: Audio Science Review measured 114 dB SINAD, 1 W into 33 ohms and 250 mW into 300 ohms from a compact, inexpensive desktop amp, enough clean power for almost any dynamic headphone.
Cons: Discontinued and replaced by the JDS Labs Atom Amp Plus, so it is mainly found used. There is no balanced output and no DAC, so it needs a separate source.
Full JDS Labs Atom Amp review and specifications →
| Released | 2018 (8 years ago) |
|---|---|
| Balanced Output | No |
| Device Type | Headphone amp |
| Inputs | RCA, 3.5mm |
| Output Power (300 ohms) | 250 mW (measured by Audio Science Review) |
| Output Power (32 ohms) | 1,000 mW (measured by Audio Science Review into 33 ohms) |
| SINAD | 114 dB (measured by Audio Science Review) |
- Reviews, Comparisons and Sound Samples
JDS Labs Atom Amp 2: $129 JDS Labs $129 eBay
Pros: Audio Science Review measured a SINAD of 120 dB, so its noise and distortion are inaudible. A rated 2,650 mW into 32 ohms and 286 mW into 300 ohms drives nearly any headphone, and it offers both 6.35 mm and 4.4 mm outputs. It matches the rating of the Topping L50 for less and adds RCA preamp outputs for powered speakers.
Cons: It has no DAC, so you need a separate source. Its inputs are RCA and 3.5 mm only, with no balanced XLR input, and the Topping A50 III rates slightly higher for a bit more.
Full JDS Labs Atom Amp 2 review and specifications →
| Released | Nov 2023 (2 years ago) |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 5.7” x 1.3” x 5.2” (145 x 34 x 131 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm |
| Inputs | RCA, 3.5 mm |
| Output Power (300 ohms) | 286 mW (manufacturer rated) |
| Output Power (32 ohms) | 2,650 mW (manufacturer rated) |
| Outputs | RCA |
| SINAD | 120 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 1 lbs (454 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons