Products
Denon Home 350
Harman/Kardon Onyx Studio 6
Tested using Methodology v0.8
Updated Oct 31, 2025 05:16 PM
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Amazon.com
Tested using Methodology v0.8
Updated Dec 05, 2024 05:38 PM
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Amazon.com
Bluetooth
Yes
Wi-Fi
Yes
Speakerphone
No
Voice Assistant
Yes
Battery Powered
No
Bluetooth
Yes
Wi-Fi
No
Speakerphone
No
Voice Assistant
No
Battery Powered
Yes
Our Verdict
Denon Home 350
Harman/Kardon Onyx Studio 6
The Harman/Kardon Onyx Studio 6 and the Denon Home 350 have different strengths and depending on your usage, you may prefer one over the other. The Harman/Kardon is a battery-powered speaker that you can take with you outdoors. It has an IPX7 rating for water resistance, although we don't currently test for this, its Bluetooth performance is better, and it can be paired with up to two devices at once. However, the Denon is a home speaker that can only be used wired. It has a more neutral sound profile out-of-the-box, a better soundstage and dynamics performance, and it supports Wi-Fi. It also has a companion app with bass and treble sliders so you can tweak its sound to your liking.
Variants
- Home 350 (Black)
- Home 350 (White)
- Onyx Studio 6 (Black)
- Onyx Studio 6 (Blue)
- Onyx Studio 6 (Gray)
Check Price
Black
Home 350
SEE PRICE
Amazon.com
Black
Onyx Studio 6
SEE PRICE
Amazon.com
White
Home 350
SEE PRICE
Amazon.com
Blue
Onyx Studio 6
SEE PRICE
Amazon.com
Gray
Onyx Studio 6
SEE PRICE
Amazon.com
Main Differences for
Music
Music
Threshold
Music
7.6
6.6
Frequency Response Accuracy
8.0
7.2
Soundstage
6.7
5.5
EQ
Bass/Treble
No
Dynamics
7.4
6.7
Full Comparison
Design
Style
Style Photo
RGB Lights
No
No
Portability
3.4
9.0
Dimensions Photo
Volume
939 in³ (15,390 cm³)
637 in³ (10,439 cm³)
Weight
15.0 lbs (6.8 kg)
6.4 lbs (2.9 kg)
Power Source
AC Only
AC & Battery
One-Hand Carry
No
Yes
Build Quality
6.7
7.5
Build Quality Photo
Material Quality
Great
Great
Water Resistance
No
Submersible (IPx7)
Dust Resistance
No
Unspecified
Impact Resistance
Unspecified
Unspecified
Floats In Water
No
Unspecified
Controls
6.9
5.9
Controls Photo
Controls Photo 2
Ease Of Use
Great
Great
Feedback
Good
Good
Music Play/Pause
Yes (Tactile)
Yes (Physical)
Call Answer/End
No
No
Volume Up/Down
Yes (Tactile)
Yes (Physical)
Track Next/Previous
Yes (Tactile)
No
Microphone On/Off
No
No
Additional Controls
Yes
Yes
In The Box
In The Box Photo
Sound
Frequency Response Accuracy
8.0
7.2
Frequency Response Graph
Slope
-0.07
-0.28
Std. Err.
3.42 dB
3.21 dB
Low-Frequency Extension
28.7 Hz
49.0 Hz
High-Frequency Extension
13.9 kHz
18.2 kHz
Raw Frequency Response
Raw Frequency Response Graph
Binaural Recording @ 1m
Binaural Recording @ 2m
Soundstage
6.7
5.5
Directivity Graph
Directivity Index
6.13 dB
4.69 dB
Stereo
Yes
No (mono)
Dynamics
7.4
6.7
Dynamic Range Compression
SPL @ Max Volume
97.0 dB SPL
87.9 dB SPL
DRC @ Max Volume
3.33 dB
2.48 dB
Active Features
Battery
0.0
5.0
Battery Life
N/A
4.7 hrs
Charge Time
N/A
4.1 hrs
Power Saving
No
Yes
Charging Port
No Battery
AC
Battery Powered
No
Yes
Voice Assistant
10
0.0
Alexa
Built-in (Wi-Fi Only)
No
Google Assistant
No
No
Speakerphone
No
No
Siri
No
No
Voice Assistant
Yes
No
Voice Activation
Yes
No
Microphone Mute
Yes
No Microphone
Far-Field Performance
Excellent
No Microphone
Ambient Noise Performance
Excellent
No Microphone
App
9.3
0.0
App Picture
App Name
Heos
No App
iOS
Yes
No
Android
Yes
No
EQ
Bass/Treble
No
Stereo Pair Mode
Yes
No
Party Mode
Yes
No
Multi-Room
Yes
No
Connectivity
Wired
Aux Input
Yes
Yes
USB Audio
No
No
Other Ports
Yes
Yes
Bluetooth
5.2
7.7
Bluetooth
Yes
Yes
Bluetooth Version
Unspecified
4.2
Bluetooth iOS Latency
575 ms
264 ms
Bluetooth Android Latency
499 ms
163 ms
Bluetooth Range
328.1 ft (100.0 m)
334.6 ft (102.0 m)
Multi-Device Pairing
No
2 Devices
Wi-Fi
8.3
0.0
Wi-Fi Version
Wi-Fi 5
No Wi-Fi
Wi-Fi Frequency Band
2.4GHz & 5GHz
No Wi-Fi
Wi-Fi
Yes
No
Apple AirPlay
Yes
No
AirPlay Latency
2 ms
N/A
Google Chromecast
No
No
Chromecast Latency
N/A
N/A
Check Price
Black
Home 350
SEE PRICE
Amazon.com
Black
Onyx Studio 6
SEE PRICE
Amazon.com
White
Home 350
SEE PRICE
Amazon.com
Blue
Onyx Studio 6
SEE PRICE
Amazon.com
Gray
Onyx Studio 6
SEE PRICE
Amazon.com
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Denon Home 350
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Denon Home 350 vs Harman/Kardon Onyx Studio 6: Main Discussion
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