The Sennheiser HD 4.50 BTNC ranks #259 out of 417 total Over-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Sennheiser
Prices on this page were last checked October 13, 2026 at 3:17 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
As an eBay Partner, we may be compensated if you make a purchase.
#259 Sennheiser HD 4.50 BTNC Discontinued eBay
Pros: Bass sits close to target and holds down to 20 Hz, so low end sounds full without bloat. Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural.
Cons: Discontinued, so it is mainly found used. Presence sits about 5.6 dB low with a 16.6 dB dip near 4.4 kHz, so vocals and instruments lose some bite. A 7.2 dB peak near 1.9 kHz can make cymbals and sibilance sound sharp.
| Released | 2017 (9 years ago) |
|---|---|
| Back | Closed |
| Connection | Bluetooth |
| Deviation From Target | 3.92 dB standard deviation |
| Driver Type | Dynamic |
| Form Factor | Over-ear |
| Frequency Response | 18Hz - 22kHz |
| Harman Preference Score | 65 (measured by oratory1990, via AutoEQ) |
| Impedance | 18 ohms |
| Sensitivity | 113 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.5 dB at 30 Hz) |
| Tonal Tilt | +0.03 (negative is warmer, positive brighter) |
| Weight | 0.5 lbs (238g) |
EQ preset to match the Harman target
Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.5 dB | 0.70 |
| Peak | 2,008 Hz | -7.2 dB | 1.15 |
| Peak | 3,876 Hz | +8.2 dB | 2.31 |
| Peak | 343 Hz | +3.0 dB | 1.23 |
| Peak | 1,009 Hz | -1.5 dB | 1.29 |
| High shelf | 10,000 Hz | +6.1 dB | 0.70 |
| Peak | 8,429 Hz | -5.3 dB | 2.76 |
| Peak | 68 Hz | -0.4 dB | 1.17 |
| Peak | 6,496 Hz | +2.4 dB | 5.05 |
| Peak | 9,714 Hz | -1.9 dB | 5.91 |
- Reviews, Comparisons and Sound Samples