Sennheiser HD 450BT vs. ASTRO Gaming A20 Wireless Gen 2

Headphones Comparison, Reviews and Tests

Side by side comparison and review of Sennheiser HD 450BT and ASTRO Gaming A20 Wireless Gen 2. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.

Headphones Specifications Comparison

Sennheiser HD 450BT vs. ASTRO Gaming A20 Wireless Gen 2 Comparison Chart
DESIGN AND DIMENSIONS Sennheiser HD 450BT ASTRO Gaming A20 Wireless Gen 2
Product Type Headphones - Bluetooth - wireless Headset - 2.4 GHz - wireless
Height - 17.75 cm
Width - 26.2 cm
Depth - 8.72 cm
Weight 238 g 318 g Sennheiser HD 450BT are lighter than Sennheiser HD 450BT headphones.
Dimensions & Weight Details - Transmitter: 1.96 cm x 6.58 cm x 0.76 cm / 7.1 g
Colour Black | White White, green
Recommended Use - Game console, computer
Gaming - Yes
Bluetooth Range (Operating Distance) - 15 m
SOUND QUALITY Sennheiser HD 450BT ASTRO Gaming A20 Wireless Gen 2
Headphones Form Factor Full size Full size
Headphones Technology Dynamic Dynamic
Ear Cups Type Closed -
Foldable Yes - Sennheiser HD 450BT can be folded.
Connectivity Technology Wireless Wireless
Wireless Technology Bluetooth 2.4 GHz radio frequency
Bluetooth Version Bluetooth 5.0 -
Bluetooth Profiles Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) -
Bluetooth Audio Codec SBC, AAC, aptX, apt-X LL -
Active Noise Cancelling Yes - Sennheiser HD 450BT are equipped with active noice cancellation.
Sound Output Mode Stereo Stereo
Frequency Response 18 - 22000 Hz 20 - 20000 Hz Sennheiser HD 450BT offer a larger frequency range than ASTRO Gaming A20 Wireless Gen 2.
Total Harmonic Distortion (THD) <0.3% <3% Sennheiser HD 450BT have lower total harmonic distortion than Sennheiser HD 450BT.
Sensitivity - 100 dB
Impedance - 32 Ohm
Max Sound Pressure 108 dB -
Diaphragm - 40 mm
Magnet Material - Neodymium
MICROPHONE Sennheiser HD 450BT ASTRO Gaming A20 Wireless Gen 2
Form Factor Built-in Headset microphone
Type - Boom
Microphone Operation Mode Beamforming Uni-directional
Frequency Response 80 - 6000 Hz -
Microphones Included 2 -
REMOTE CONTROL Sennheiser HD 450BT ASTRO Gaming A20 Wireless Gen 2
Controls - Flip-to-mute
CABLE Sennheiser HD 450BT ASTRO Gaming A20 Wireless Gen 2
Cable Type Audio cable - detachable
USB-C charge cable - detachable
USB-C to USB-A cable - detachable - 1.5 m
BATTERY AND CHARGING Sennheiser HD 450BT ASTRO Gaming A20 Wireless Gen 2
Battery Type Headphone battery rechargeable - lithium polymer Headset battery rechargeable - lithium polymer
Battery Capacity 600 mAh 1050 mAh ASTRO Gaming A20 Wireless Gen 2 have a higher battery capacity than Sennheiser HD 450BT.
Battery Life 30 hours 15 hour(s) Sennheiser HD 450BT lasts longer on a single charge than the ASTRO Gaming A20 Wireless Gen 2.
Charging Time 2 hours 3.5 hour(s) Sennheiser HD 450BT recharge faster than Sennheiser HD 450BT.
Auto On/Off - Yes
OTHERS Sennheiser HD 450BT ASTRO Gaming A20 Wireless Gen 2
Included Accessories Carrying case Wireless transmitter
Compatibility - Mac, Windows
Service & Support Limited warranty - 2 years -
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