Short answer: the EPZ x Tipsy Star One. It ranks #198 of 450 in-ear headphones by sound quality, rated 4.2/5, at $88.02; the NF Audio RA15 ranks #265, rated 4.0/5, and costs $89, so there is not much of a tradeoff to weigh.
Buy the EPZ x Tipsy Star One. It is rated higher for sound quality than the NF Audio RA15 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| EPZ x Tipsy Star One | NF Audio RA15 | |
|---|---|---|
| Price | $88.02 | $89.00 |
| Ranked | #198 of 450 in In-Ear Headphones | #265 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 76 (median of 12 squig.link measurements, calibrated to AutoEQ) | 73 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.68 dB standard deviation | 2.15 dB standard deviation |
| Tonal Tilt | -0.41 (negative is warmer, positive brighter) | -0.05 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.6 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x dynamic |
| Impedance | 64 ohms | 32 ohms |
| Sensitivity | 112 dB | 108 dB/mW |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 10Hz - 40kHz (Manufacturer specified) |
| Weight | - | 0 lbs (9 g) per earbud |
Related Headphone Comparisons
More worthwhile head-to-heads for EPZ x Tipsy Star One:
- EPZ x Tipsy Star One vs Moondrop Concerto
- EPZ x Tipsy Star One vs Twistura Beta
- NF Audio RA15 vs Tin HiFi T4
- NF Audio RA15 vs Moondrop Golden Ages
- CVJ Nozomi vs NF Audio RA15
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 Headphones In Full
EPZ x Tipsy Star One: $88.02 Amazon eBay
Full EPZ x Tipsy Star One review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.68 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 76 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 64 ohms |
| Sensitivity | 112 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) |
| Tonal Tilt | -0.41 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
NF Audio RA15: $89.00 Amazon eBay
Full NF Audio RA15 review and specifications →
| Released | Oct 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.15 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x dynamic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 73 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 108 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.6 dB at 30 Hz) |
| Tonal Tilt | -0.05 (negative is warmer, positive brighter) |
| Weight | 0 lbs (9 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons