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Personal review

Thieaudio Valhalla Review: Armature Bass With Weight, in Shells You Should Try First
The Thieaudio Valhalla is fantastic: its soundstage is among the best I've heard, and its tuning is mostly neutral with a slight warm tilt.
Independent Hi-Fi Reviews
Reviews of IEMs, DACs, DAPs, and cables by one listener with a lush, warm, vocal-forward taste.
Personal review

The Thieaudio Valhalla is fantastic: its soundstage is among the best I've heard, and its tuning is mostly neutral with a slight warm tilt.
Personal Tier List
My ranked lists of eight IEMs, five DAPs and DACs, and four cable brands, on sound, build quality, and enjoyment. The Thieaudio Valhalla tops the IEM list.
Personal review
A flexible, well-finished 4.4mm cable that I use on my Penon Archangel in place of the thick stock Cadmus II. Worth it for handling, looks, and a balanced plug on an IEM you already love. It won’t fix an IEM you dislike.
Personal review
A roughly $70 single-dynamic IEM with a maple and zinc-alloy shell, a good case and cable, and a warm, bass-forward tuning. It suits new listeners and anyone wanting a relaxed second set. Detail and imaging are average, and the cable is 3.5mm only.
Personal review
A warm, smooth dual-dynamic IEM, about $79 at launch, with natural vocals, polite treble, and a striking red shell. It suits treble-sensitive listeners and long sessions. It gives up sparkle and fine detail, the stock cable is weak, and it wants a source with low output impedance.
Personal review
A warm, bass-first IEM (2DD + 2BA + electret) with deep, textured bass, smooth treble, and switches that make real changes. It suits pop, hip-hop, rock, and electronic listeners who want slam. Resolution is its limit, and the large shells with short nozzles won’t fit every ear.
Personal review
A compact, slightly chunky $199-class player with up to 825mW per channel from 4.4mm, USB DAC mode, Wi-Fi streaming, and a natural, slightly warm sound. It suits buyers who put power and sound before apps. The software is basic, and Wi-Fi is 2.4GHz only.
Personal review
A warm, bass-heavy $799 IEM with a big stage and bass and treble switches that make real changes. It suits listeners who want slam and scale under $1,000. The tradeoffs: large shells, some sound leakage, and less neutrality and fine detail than reference sets.
Personal review
A natural-sounding single-dynamic IEM under $150 with a warm-neutral tuning, stainless-steel shells, and a cable with 3.5mm and 4.4mm plugs. It suits people who want one versatile IEM with good vocals and timbre. Bass, sparkle, and stage are modest.
Personal review
A warm, smooth 1DD + 3BA hybrid, about $99 at launch, with full vocals, comfortable resin shells, and a modular 3.5mm/4.4mm cable. It suits listeners who want musical, fatigue-free sound under $100. Treble bite, air, and fine detail are limited.
Personal review
A roughly $200 Bluetooth DAC/amp that works on the go and at a desk, where Desktop Mode gives up to 650mW per channel. It suits people who own both IEMs and full-size headphones. Battery life is about eight hours, and it can’t send audio to wireless earbuds.
Guide
Buy your first IEM for fit, seal, and tuning, not driver count. A balanced or gently warm tuning and a small, simple shell are the safest start. Keep some budget for ear tips and a basic dongle DAC.
Guide
For most IEMs, a clean dongle with output impedance around 1 ohm or lower is enough. Pick low noise and fine volume steps before power, and let the IEM, not the DAC, set the sound.
Personal Tier List
My ranked lists of eight IEMs, five DAPs and DACs, and four cable brands, on sound, build quality, and enjoyment. The Thieaudio Valhalla tops the IEM list.
Start with our guides on impedance matching, source selection, and finding your sound signature.