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Sennheiser HD 505 Open-Back Over-Ear Headphones - Gold｜12Hz–38.5kHz・120Ω・For Music and Gaming｜Parallel Import, One-Year Service Warranty

Name: Sennheiser HD 505 Open-Back Over-Ear Headphones - Gold｜12Hz–38.5kHz・120Ω・For Music and Gaming｜Parallel Import, One-Year Service Warranty
Brand: Sennheiser
SKU: FE-SENN-HD505
Price: 299 AUD
Availability: InStock

$299.00 AUD $469.00 AUD Save $170.00 AUD

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SENNHEISER

Sennheiser HD 505 Open-Back Over-Ear Headphones｜12Hz–38.5kHz・120Ω・For Music and Gaming

Frequency response 12 Hz – 38,500 HzImpedance 120 ΩSensitivity (SPL) 107.9 dB（1 kHz /Total harmonic distortion (THD) < 0.2 %（1 kHz Cable length 1.8 m（detachable, left side）Connector 3.5 mm plug + 6.35 mm screw-onWeight（without cable）Approx. 237 gProduct number (SKU) 700453

Parallel importOne-year warrantyGenuine original product

Product introduction

This product is a parallel-import version (grey import), not Hong Kong authorized-agent retail packaging; a one-year warranty is provided by our store.

Six factual selling points

Three practical usage scenarios

Scenario 1

Scenario 1Daily music listeningPC gamingWatching movies and TV seriesMusic for beginners

Package contents

Original standard box packaging; actual packaging accessories are subject to the physical product (the instruction manual language in parallel-import packaging may be English, which does not affect product functionality). If you have any questions, please contact our store before placing your order.

Why choose this model?

Open-back dynamic drivers:— The open-back design creates a spacious, natural soundstage.
12Hz–38.5kHz:— Wide frequency response with excellent extension at both the high and low ends.
Lightweight 237g:— The lightweight construction provides comfort during extended wear.

Comparison of models in the same series

Model	Type	Connection	Positioning
HD 505	Open-back	Wired	Entry-level audiophile
HD 550	Open-back	Wired	Audiophile-grade
HD 560S	Open-back	Wired	Neutral monitoring
HD 599	Open-back	Wired	Home audiophile
HD 800S	Open-back	Wired	Flagship

Learn more about models in the same series:

Comparison is limited to models available in-store; prices are subject to the amounts shown on the page at the time of ordering.

Official Full Specifications

Headphone Type	Open-back, over-ear (Around-Ear, Circumaural)
Driver Type	Dynamic, open-back
Frequency Response	12 Hz – 38,500 Hz
Impedance	120 Ω
Sensitivity (SPL)	107.9 dB（1 kHz / 1 Vrms）
Total Harmonic Distortion (THD)	< 0.2 %（1 kHz / 90 dB SPL）
Cable Length	1.8 m（detachable, left side）
Connector	3.5 mm plug + 6.35 mm screw-on adapter
Weight (without cable)	Approx. 237 g
Ear Pad Material	Synthetic velour
Product Number (SKU)	700453
Package Contents	HD 505 (Copper) open-back headphones, 1.8m cable (3.5mm plug), 3.5mm to 6.35mm screw-on adapter, drawstring storage pouch

Frequently Asked Questions

Q: Is the HD 505 suitable for gaming?

A: Yes. The HD 500 BAM microphone boom can be purchased separately to turn it into a gaming headset.

Q: Do I need a headphone amplifier?

A: With a 120Ω impedance, it can generally be driven by a smartphone or computer; pairing it with a DAC/headphone amplifier delivers even better results.

Q: Is it open-back?

A: Yes. The open-back design provides a spacious soundstage, but there will be some sound leakage.

Q: Can the cable be replaced?

A: Yes, it uses a detachable cable.

Q: What is the difference between it and the HD 550?

A: Both belong to the 500 Series of open-back headphones; the HD 550 is newer and extends lower in the frequency range down to 6Hz, while the HD 505 has an impedance of 120Ω.

Q: Can the ear pads be replaced?

A: Yes, the manufacturer provides replacement ear pads for the HD 5XX Series.

Genuine SENNHEISER Product · 1-Year Warranty · Shop Now

Source: Sennheiser official website us.sennheiser-hearing.com（retrieved 2026-10-23）｜Parallel-import product; one-year warranty provided by our store

Warranty

1-year warranty as standard. DIGIBAL ONLINE follows the warranty period required by the local trade and consumer laws of your country and will provide warranty service or assist with repairs for your product accordingly. Warranty period is subject to the statutory requirements of the local country.

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