The JDS Labs O2 ranks #24 out of 30 total Headphone Amplifiers for sound quality. See all Headphone Amps and DACs rankings for every top pick.
Brand: JDS Labs
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#24 JDS Labs O2 Discontinued eBay
Pros: Audio Science Review measured a SINAD of 109 dB, so noise and distortion stay well below audibility in normal listening. It offers 3.5 mm or RCA inputs.
Cons: Discontinued, so it is mainly found used. There is no balanced headphone output. It has no built in DAC, so it needs a separate DAC or source with a line output. The maker gives no power rating into 32 ohms.
| Balanced Output | No |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 4.3” x 1.2” x 3.1” (108.5 x 29.5 x 80 mm) |
| Headphone Outputs | 3.5 mm or 6.35 mm |
| Inputs | 3.5 mm or RCA |
| SINAD | 109 dB (measured by Audio Science Review) |
| Volume Control | Analog potentiometer (Alps) |
| Weight | 0.7 lbs (312 g) |
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