Softears Studio 4 VS Penon Quattro

Youtube Video Summary

Starry Edition brings a fresh faceplate to the Softears Studio 4 without changing the tuning. The translucent, slightly large shell seals firmly and delivers strong isolation; the only nit is a modest nozzle lip that still holds tips fine. Packaging leans “studio”: compact Pelican-style case, extension cable, tips, 6.3 mm adapter, and a soft black cable that feels nice but lacks a chin slider and terminates in 3.5 mm.

Sonically, this 4BA set is about clarity, air, and top-end extension—described as among the best heard under $800. Vocals come through vivid, mids are clean, and bass has a mild shelf: tasteful impact without bloat, though it’s not a slam machine. Expect excellent imaging, space, and detail; a touch of EQ can add weight if desired. It can be a bit source-picky: low output impedance sources suit it best, while a 10 Ω adapter pushes more treble and trims bass in a less pleasing way.

Against peers, Studio 4 is praised over Softears Twilight for air/extension (while acknowledging Twilight’s smooth DD charm) and over Volume for overall technicalities despite the small price gap. Versus RSV, Studio 4 avoids the RSV’s slight bass “muffle” and undercuts it on price; compared with Monarch MKII, it delivers a similar tonal aim without the occasional grain. Sets like Kiwi Ears 4, Truthear Hexa, and Binary Acoustics D Quattro trade blows on bass quantity versus air, but Studio 4’s upper-air detail and coherence make it a standout. At an often-seen street of ~$368, it’s framed as a benchmark sub-$500 pick and earns a full recommendation for listeners chasing articulate treble, lifelike vocals, and refined balance.