HiSenior Mega5EST 7th Anniversary Edition – Tribrid 1DD + 2BA + 2EST IEM | Harman-Tuned Smooth Coherence & Anniversary Upgrades
Celebrate a decade of excellence with the HiSenior Mega5EST 7th Anniversary Edition, a limited-edition tribrid flagship that marks Hisenior's milestone with refined engineering and musical refinement. This first tribrid from Hisenior features a 5-driver setup per side (1 custom 10mm bio-cellular diaphragm dynamic driver + 2 Knowles BA + 2 Sonion EST super tweeters), tuned to the Harman IEM target curve with Hisenior's exclusive smooth coherence from bass to treble. The result is warm, natural, detailed sound with excellent instrumental definition, top-clean clarity, and seamless transitions—praised for versatility, tonal balance, timbre, and a larger-than-expected soundstage in a compact, comfortable shell.
Key Features
- Tribrid 5-driver configuration per side: • Custom 10mm bio-cellular diaphragm DD – superior airy, dynamic lows with THD <0.5% for textured, controlled bass • 2 Knowles BA drivers – rich, natural mids with excellent vocal presence and detail • 2 Sonion EST super tweeters – ultra-high extension up to 80kHz for sparkling, airy treble without harshness
- 4-way integrated passive crossover + triple-bores + 3 dampers – ensures phase coherence, low distortion, and smooth frequency integration
- Anniversary upgrades: New smaller shell for better fit, new sound nozzle, revised inner driver configuration, new air vent, and updated Harman-referenced tuning with exclusive smooth bass-to-treble coherence
- Harman IEM target curve reference – well-balanced with natural warmth, detailed mids, clean treble, and overall musicality; versatile for vocals, instruments, and all genres
- Premium WhiteWhale cable – high-purity construction for clean transmission and enhanced clarity
- Ergonomic, lightweight shells – superior comfort, strong passive isolation (-20dB), and secure fit for extended listening
- Easy to drive: 25Ω impedance + 110dB/mW sensitivity; scales beautifully with sources
- 1-year warranty (IEM only)
Sound Performance
The Mega5EST 7th Anniversary Edition delivers a soft W-shaped balance that's "pinnacle of Harman target musicality"—deep/dense/rumbly bass, lush/natural mids (top-notch timbre), smooth/airy treble (no dryness), superb separation, wide soundstage, and snappy dynamics. It's versatile, non-fatiguing, and engaging, with excellent coherence and resolution that shines on vocals, instruments, and complex tracks. Reviewers call it one of the most balanced and enjoyable tribrids, with fantastic timbre, technicalities, and value.
Technical Specifications
- Drivers: 1DD (10mm bio-cellular) + 2BA (Knowles) + 2EST (Sonion)
- Configuration: 1 Low + 2 Mid-High + 2 S-High
- Crossover/Tuning: 4-Way Integrated (Passive) / Triple-Bores / 3 Dampers
- Frequency Response: 10Hz – 50kHz
- Sensitivity: 110dB/mW
- Impedance: 25Ω
- Isolation: -20dB
- Connector: 0.78mm 2-Pin Detachable
- Cable: WhiteWhale Premium
- Warranty: 1 Year (IEM only)
What's in the Box?
- Mega5EST Tribrid In-Ear Monitors (pair)
- WhiteWhale Premium Cable
- Pelican protective case (waterproof/crushproof)
- Eartips (6x pairs silicone + 2x pairs foam, various sizes)
- Clean wiper
- User manual & accessories







