Brand: Sennheiser · SKU: 508288 · MPN: 508288 · Category: Components
The Sennheiser HD 300 PRO is a premium closed-back circumaural headphone designed specifically for professional monitoring, mixing, and studio applications. Built to deliver a neutral, high-resolution working sound, it features a linear frequency response across the entire spectrum from 6 Hz to 25,000 Hz. Its acoustic properties are engineered to remain distortion-free even at high sound pressure levels (up to 123 dB), ensuring that fine subtleties and transients are preserved. The design prioritizes long-term wearing comfort for extended sessions, utilizing viscoelastic earpads and a finely balanced pressure distribution system. Additionally, the closed-back construction provides up to 32 dB of passive noise attenuation, making it ideal for use in loud environments or during live performances. The headphones include a replaceable, single-sided 1.5m cable with a 3.5mm jack and a screw-on 1/4" adapter.
| Impedance | 64 Ohms |
|---|---|
| Connection | 3.5mm Jack with 6.3mm Adapter |
| Maximum SPL | 123 dB SPL @ 1 kHz |
| Cable Length | 1.5 m (4.9 ft) |
| Contact Pressure | 6.0 N ± 0.75 N |
| Frequency Response | 6 Hz – 25,000 Hz |
| Transducer Principle | Dynamic, closed |
| Ambient Noise Attenuation | ≤ 32 dB (passive) |
| Sound Pressure Level (SPL) | 108 ±3 dB SPL / 1 Vrms / 1 kHz |
| Total Harmonic Distortion (THD) | < 0.1 % @ 1 kHz, 94 dB SPL |
| Warranty | 2-Year Limited Manufacturer Warranty |
| Weight | 297 g |
| Dimensions | 24.5 x 18.7 x 8.4 cm (Packaging) |
Professional monitoring headphones with high-resolution, linear sound and superior passive noise isolation for studio and live work.
Yes, this Sennheiser HD 300 PRO Professional Monitoring Headphones (508288) is 100% genuine Sennheiser hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Sennheiser HD 300 PRO Professional Monitoring Headphones includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the 508288.