Short answer: the 64 Audio Tia Fourte, though neither ranks well in its class. It ranks #1051 of 1291 in-ear headphones by sound quality, rated 2.8/5, at $3,599; the Noble Audio Viking Ragnar ranks #1098, rated 2.5/5, and costs $4,000, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 1291 in-ear headphones; for better sound, the ThieAudio Monarch MKIII ranks #1 at $999.
What the 64 Audio Tia Fourte does well: Lower mids sit within about 0.9 dB of target, keeping voices and guitars natural. The tradeoff: Presence sits about 7.1 dB low with a 10.9 dB dip near 3.5 kHz, so vocals and instruments lose some bite.
What the Noble Audio Viking Ragnar does well: Lower mids sit within about 0.7 dB of target, keeping voices and guitars natural. Watch for: Presence sits about 7.7 dB low with a 10.2 dB dip near 4.2 kHz, so vocals and instruments lose some bite.
Buy the 64 Audio Tia Fourte. It is rated higher for sound quality than the Noble Audio Viking Ragnar and costs less, so only choose the other one for a particular feature it does better.
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Lower mids sit within about 0.9 dB of target, keeping voices and guitars natural.
Headphones.com $3,599.00 eBay
Lower mids sit within about 0.7 dB of target, keeping voices and guitars natural.
Headphones.com $4,000.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 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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Specifications Side By Side
| 64 Audio Tia Fourte | Noble Audio Viking Ragnar | |
|---|---|---|
| Price | $3,599.00 | $4,000.00 |
| Ranked | #1051 of 1291 in In-Ear Headphones | #1098 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Tribrid |
| Drivers | 1 x dynamic + 3 x balanced armature (tia) | 2 x dynamic, 4 x balanced armature, 4 x electrostatic |
| Impedance | 10 ohms | 17 ohms |
| Sensitivity | 114 dB/mW | - |
| Frequency Response | 5Hz - 22kHz | 20Hz - 40kHz |
| Harman Preference Score | 59 (measured by HypetheSonics, via AutoEQ) | 55 (measured by HypetheSonics, via AutoEQ) |
| Deviation From Target | 3.03 dB standard deviation | 3.34 dB standard deviation |
| Tonal Tilt | -0.43 (negative is warmer, positive brighter) | +0.60 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-5.4 dB at 30 Hz) |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the 64 Audio Tia Fourte from aden, dl, elrics, hbb and precog; the Noble Audio Viking Ragnar from aden, bloomaudio, dchpgall and vsg, all via squig.link.
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