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Sennheiser

Sennheiser HD 505

Name: Sennheiser HD 505
Brand: Sennheiser
SKU: B0DSK2MB15
Price: 226.90 USD

Sennheiser HD 505 professional studio headphones

Current price · Amazon US

$226.90

Check Price on Amazon

Price last checked 2h ago

Noise Isolation / ANC & sound

2.5/ 10

2.5

0.010.0

A 2.5 puts its noise isolation / ANC in the bottom 10% of over-ear headphones we've measured.

Measured on 86 of the 240 we've cataloged.

4.5/ 5

SoundMDAQS Overall

4.5

1.05.0

A 4.5 puts its audio quality in the top quarter of over-ear headphones we've measured.

Measured on 44 of the 240 we've cataloged.

Key specs

Connection Type

Wired 3.5mmMost common

Wired-3.5mm48%Bluetooth44%Wired-usb-c7%Others1%

Wired-3.5mm is the most common — on 48% of the 215 over-ear headphones we've cataloged (of 240).

Weight

237 gBelow average

237 g

132 g420 g

below average for over-ear headphones — based on 195 of 240 we've cataloged.

Connectivity

Connection Type: Wired 3.5mm
USB Charging: No

Design

Weight: 237 g
Color Options: Black, copper
Foldable: No
Headband Type: Adjustable over-head

Sound

Acoustic Design: Open-back
Driver Count: 1
Frequency Response: 12-38500 Hz
Frequency Response High Hz: 38500 Hz
Frequency Response Low Hz: 12 Hz
Frequency Response Signature: Flat
Impedance: 120 Ω
Sensitivity: 107.9 dB/mW

Battery

Battery: No

Build

Material Ear Cups: Velour
Material Headband: Synthetic leather with padding

Microphone

Microphone: No

SoundGuys review

Read the full review ›

SOUNDGUYS rating

6.9/ 10

Worth a look

Reviewed byChristian ThomasEditor-at-largeReviewed February 2025

Isolation2.5

Comfort & fit9.0

Connectivity6.5

Design9.0

Portability5.0

Features6.0

The verdict

If you can't justify spending a bunch of money on the Sennheiser HD 600, the HD 505 is an excellent starting point for open-back headphones, and a better deal than the HD 560S.

✓What we like

✓Sound Quality

✓Price

✓Comfort

✕What could be better

✕Locking ear cup connector

✕Band can take some getting used-to

Read the full SoundGuys review →

Lab data

How we test ›

Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.

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0 of 4 overlay slots used

Sennheiser HD 505SoundGuys Headphone Preference Curve

Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.

Frequency response — measurement data

Sennheiser HD 505: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Response (dB)
20	-8.7
25	-6.9
32	-5.3
40	-3.9
50	-2.7
63	-2.5
80	-2.1
100	-1.5
125	-1.5
160	-1.8
200	-2.2
250	-2.5
315	-2.6
400	-2.6
500	-2.5
630	-1.9
800	-1.3
1000	0.0
1250	1.5
1600	3.3
2000	5.4
2500	9.3
3150	10.3
4000	7.6
5000	7.2
6300	6.6
8000	6.3
10000	6.5
12500	-3.7
16000	-6.9
20000	-7.6

Sennheiser HD 505

Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.

Passive isolation — measurement data

Sennheiser HD 505: passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Attenuation (dB)
21	-11.2
26	-2.5
33	0.1
41	-0.1
52	0.2
65	-0.1
82	-0.1
103	-0.1
130	0.0
163	-0.0
205	-0.1
259	0.1
325	-0.1
410	-0.2
516	-0.4
613	-0.5
772	-0.9
972	-1.7
1220	-2.6
1540	-2.8
1940	-0.2
2440	2.0
3070	6.1
3870	9.1
4870	15.9
6130	18.2
7720	13.9
9720	18.2
12200	11.0
15400	16.4
19400	15.2