Endgame sound
without the endgame price
Boutique in-ear monitors, designed, assembled, and tuned by one obsessive craftsman. Flagship-class performance and genuine Knowles & Sonion drivers, from $275.
Two builds, held to one standard.
Flagship
PRE5TIGE
$679A five-driver tribrid for the listener who wants it all: thunderous bass, holographic stage, and air for days. Signed and serial-numbered.
Explore
Best value
Hexad
$275Six drivers and real stabilized-wood faceplates. Built for musicians and audiophiles who want flagship engineering at an unreasonable price.
ExploreLooking for the original Tetrad? It is retired, but Isaiah still builds them on request. See the Tetrad.
Five drivers, tuned
to disappear.
A 10mm dynamic for visceral bass, an 11mm bone-conduction driver you feel as much as hear, Sonion and Knowles armatures for lifelike mids and effortless detail, and a magnetostat super-tweeter for air that shimmers. One five-way crossover, tuned by hand into a single, coherent voice.
What owners and reviewers say
Real, unedited words from verified owners and independent reviewers. Nothing here is invented.
“These are S-tier in my opinion. This is coming from someone with a handful of $1–3k sets. They do an incredible job of separating all of the chaos and delivering a lively experience.”
“The tuning and sound quality is on par, or exceeds, that of several already well established players in the industry. Driver coherence is excellent.”
“Fantastic tuning with high quality drivers. The build quality is spectacular and the price is very reasonable for a hybrid of this caliber.”
“I love it when small brands come along and do something legitimately great and interesting like this.”
“Mature tuning on the first effort by a young prodigy. Music feels live and spacious, with a lot of air between instruments.”
“Killer product! The audio quality is insane. Would recommend to any audiophiles out there.”
Watch independent reviews
Why does flagship sound cost two thousand dollars?
Mostly, it doesn’t have to. The big names, Campfire Audio, 64 Audio, ThieAudio, build with the same genuine Knowles and Sonion armatures and multi-driver tribrid arrays that Symphony Ears does. What inflates their price is everything around the sound: distribution, dealer margins, marketing, brand.
Symphony Ears sells direct, built by one person. You pay for drivers and craftsmanship, not corporate overhead. Same pedigree, a fraction of the price.
Knowles & Sonion, like the flagships.
No dealers, no retail markup.
Hand-built, never a factory line.
Flagship-class universal IEMs, by price
Competitor prices via Bloom Audio, Linsoul & 64audio.com, 2026. Symphony Ears uses the same Knowles & Sonion driver pedigree.
“S-tier in my opinion. This is coming from someone with a handful of $1–3k sets.”DenverFi, verified PRE5TIGE owner
Meet Isaiah, who builds
every single pair.
There is no team. There is Isaiah, an engineer’s mind and a musician’s ear, who designs the shells in CAD, prints and hand-assembles them, then fine-tunes every set by hand until it sounds right. A Head-Fi reviewer called his work the “mature tuning of a young prodigy.”
That is the quiet advantage of a one-man shop: every pair gets the founder’s full attention, every unit is quality-checked by the person whose name is on it, and when you need support, you are talking to the maker.
Read Isaiah’s story
Designed, built, and finished by hand.
Engineered in CAD
Every shell and acoustic chamber is modeled in 3D, then printed in medical-grade resin. Driver placement and bore length are tuned on the screen before a single part is glued.
Hand-assembled
Drivers, crossovers, and wiring are placed by hand under magnification. Faceplates, including real stabilized wood, are set and polished one pair at a time.
Tuned and verified
Each finished set is measured on a rig and fine-tuned by hand until it matches the Symphony Ears target. Nothing ships until Isaiah signs off on how it sounds.
Measured honestly. Tuned to move you.
Every Symphony Ears model is tuned for music first, then measured to prove it. Across the lineup the goal is the same: a confident low end, natural mids, and an open, airy top that stays smooth rather than sharp, so the music feels alive instead of clinical.
The real measured response of each model is published openly, because this community trusts data over adjectives. Nothing ships until it both measures and sounds the way it should.
Something new is taking shape.
The next Symphony Ears IEM is on the bench, slotting in between Hexad and PRE5TIGE. Limited first batch. Join the waitlist and you will hear it here first.
Join the waitlistQuestions, answered honestly
Are these really as good as the big-name flagships?
Can I hear them before I buy?
How long until my IEMs arrive?
What does the warranty cover?
Who actually makes them?
What connector and cable do they use?
Be first to hear what Isaiah builds next
Limited batches sell out, and new models drop without much warning. Join the list for early access and the occasional behind-the-bench story.
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