S150 | 1 Driver
Best entry-level custom monitor for budget-conscious audiophiles and studio professionals.
Experience superior audio with the InEarz Audio S150, a custom in-ear monitor designed for clarity and comfort. Featuring a single, full-range balanced armature driver, it delivers crisp, clean sound ideal for studio monitoring and audiophile listening. The custom fit ensures superior comfort and excellent passive noise isolation. As the most affordable custom IEM in the InEarz lineup, the S150 offers personalized aesthetics and a unique 30-day money-back guarantee, providing a risk-free way to enjoy handcrafted audio quality. Premium accessories are included for a complete experience.
$329.00
Owner Satisfaction
4.6
/ 5
Category Rank
436
/ 5531
#436 in Headphones
Price vs Category Average
-44%
Below average
Driver Type/Count
One balanced armature receiver
/ One balanced armature receiver
Who it's for
- Audiophiles prioritizing natural sound coherence and phase accuracy
- Commuters needing efficient, reliable gear for portable devices
- Budget-conscious musicians exploring custom-fit monitoring for the first time
Who should skip it
- Listeners demanding deep sub-bass and sparkling high-frequency extension
- Producers requiring high-volume headroom for complex, dense musical arrangements
- Critical listeners seeking maximum resolution and intricate micro-detail retrieval
Performance breakdown
Acoustic Clarity
Single balanced armature driver delivers remarkably crisp and clean studio-grade sound.
Passive Isolation
Custom-molded fit provides an impressive -26dB reduction in ambient noise.
Ergonomic Comfort
Precision-crafted custom shells ensure fatigue-free listening during extended studio sessions.
Aesthetic Customization
Extensive options for shell and faceplate designs allow for true personalization.
Frequency Range
Solid performance across the spectrum, though limited at the extreme sub-bass.
Entry Accessibility
The most approachable gateway into the world of professional custom monitors.
Key Specs
Driver Type/Count
One balanced armature receiver
Driver Configuration
1 full range
Frequency Response
20Hz-18kHz
Impedance
24 Ohm @ 1kHz
Isolation Rating
-26dB (+/- 2dB)
Connectivity
Wired (Termination: 1/8″ (3.5mm) Stereo Jack)
Socket Type
T2™ or 2-Pin
Ear Type
Custom
Features
- Crisp, clean, full-range sound reproduction
- Custom fit for superior comfort
- High passive noise isolation
- Handcrafted by experienced technicians
- Customizable shell, faceplate, and artwork
- Industry-first 30-day money back guarantee
- Most affordable custom IEM
- Single full-range balanced armature driver
What customers say
The S150 Driver earns praise primarily for its superior comfort and balanced sound quality. Listeners appreciate the natural audio signature, which delivers clarity without overly boosted highs or bass, enabling extended listening without fatigue. The physical design contributes significantly, featuring a sturdy build and a secure fit that provides excellent passive noise isolation. Although the low end is reserved, the overall impression is one of outstanding value. This product is highly recommended for anyone prioritizing reliable, high quality audio performance centered on neutral sound reproduction.
Know before you buy
The single balanced armature driver is designed to provide a cohesive, full-range sound without the phase issues that can sometimes occur in multi-driver systems. It delivers a clean, accurate profile that is particularly well-suited for studio monitoring and critical listening.
Because the S150 is a custom-molded monitor, it creates a deep, secure seal in your ear canal. This provides an impressive -26dB of passive noise isolation, which is highly effective at blocking out ambient stage or office noise.
Yes. With an impedance of 24 Ohms, the S150 is easy to drive and does not require a dedicated high-power amplifier. It connects via a standard 3.5mm stereo jack, making it compatible with most smartphones, tablets, and laptops.
The socket type refers to the connector where the cable attaches to the earpiece. The T2 connector is a more modern, robust, and sweat-resistant design, while the 2-pin is a classic industry standard that offers broad compatibility with aftermarket cables.
To create your custom fit, you will need to visit a local audiologist to have professional ear impressions taken. These physical molds are then sent to InEarz, where technicians use them to handcraft your monitors to the exact shape of your ear canals.
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