Sennheiser IE 400 PRO
#2 in Wired Earphones · Rated 4.1
Professional wired IEM for stage and studio monitoring.
IE 400 PRO is Sennheiser’s mid-to-upper tier wired in-ear monitor line, engineered for live stage use and studio reference. It pairs a compact, lightweight shell with a robust stage-ready cable and a coaxial-like design that minimizes microphonics while delivering punchy lows and clear highs. The IE 400 PRO is built for professionals who demand precise monitoring with durable construction, detachable cable options, and a compact profile that remains comfortable through long sessions. The product sits in the same family as the IE 500 PRO and IE 200 PRO, offering a versatile option for performers, sound engineers, and recording artists who want a wired IEM without wireless complications. In 2025, it remains a commonly recommended choice for on-stage monitoring and critical listening, with noticeable benefits over entry-level wired IEMs in terms of detail and low-end control.
Features
- Detachable stage-ready cable with reinforced connector
- Dynamic transducer delivering balanced response
- Compact ergonomic housing
- Memory foam/silicone tip options for isolation
- 3.5 mm output (with a variety of accessories)
Pros
- Accurate, punchy sound suitable for monitoring
- Durable construction with reliable detachable cable
- Comfortable fit for long sets
Cons
- Premium price point
- Not USB-C or Bluetooth—purely wired