The lineup

Two IEMs. One obsessive maker.

Every pair is built to order and tuned by hand in the USA. Same driver pedigree as the flagships that cost several times as much.

Tetrad · retired

The original 4-driver that started it all. No longer in regular production, but Isaiah still builds them on request.

View the Tetrad
In the workshop

The next Symphony Ears

A new model is on the bench, between Hexad and PRE5TIGE. Limited first batch.

Join the waitlist

1-Year Warranty

Full parts & labor coverage. If anything goes wrong, you just cover shipping.

Built to Order

Each pair is hand-assembled for you and ships in about 2–4 weeks.

Personally Tuned

Every set is hand-tuned and quality-checked by Isaiah before it leaves the bench.

Talk to the Maker

No call center, no ticket queue. You email the person who built your IEMs.

Stay in the loop

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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