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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Comfort
    3. Controls
    4. Breathability
    5. Portability
    6. Case
    7. Build Quality
    8. Stability
    9. Headshots 1
    10. Headshots 2
    11. Top
    12. In The Box
  5. Sound
    1. Sound Profile
    2. Frequency Response Consistency
    3. Raw Frequency Response
    4. Bass Accuracy
    5. Mid Accuracy
    6. Treble Accuracy
    7. Peaks/Dips
    8. Imaging
    9. Passive Soundstage
    10. Virtual Soundstage
    11. Weighted Harmonic Distortion
    12. Test Settings
  6. Isolation
    1. Noise Isolation
    2. Leakage
  7. Microphone
    1. Microphone Style
    2. Recording Quality
    3. Noise Handling
  8. Active Features
    1. Battery
    2. App Support
  9. Connectivity
    1. Wired Connection
    2. Bluetooth Connection
    3. Wireless Connection (Dongle)
    4. PC Compatibility
    5. PlayStation Compatibility
    6. Xbox Compatibility
    7. Base/Dock
  10. Comments

Bowers & Wilkins Pi7 S2 True Wireless vs Denon PerL Pro True Wireless

Side-by-Side Comparison

Products

Bowers & Wilkins Pi7 S2 True Wireless
Denon PerL Pro True Wireless

Tested using Methodology v1.6

Updated Sep 05, 2024 04:19 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.5

Updated May 10, 2024 05:22 PM

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BestBuy.com
Bowers & Wilkins Pi7 S2 True Wireless Picture
Denon PerL Pro True Wireless Picture

Variants

  • Pi7 S2 (Canvas White)
  • Pi7 S2 (Midnight Blue)
  • Pi7 S2 (Satin Black)
  • PerL Pro (Black)

Our Verdict

Bowers & Wilkins Pi7 S2 True Wireless

Denon PerL Pro True Wireless

The Denon PerL Pro True Wireless are better than the Bowers & Wilkins Pi7 S2 True Wireless. Both are premium earbuds designed for sound quality, but the Denon can stream higher-resolution audio with the aptX Lossless codec. They give you more options for customizing the sound profile, including a personalized EQ feature and a graphic EQ. Otherwise, they have a longer battery life and support multi-device pairing. However, the Bowers & Wilkins' case acts as a wireless transmitter, granting them extra versatility since they can receive audio from Xbox and PlayStation consoles. Their noise isolation is also much better.

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Canvas White
Pi7 S2
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Midnight Blue
Pi7 S2
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Black
PerL Pro
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Amazon.com
Satin Black
Pi7 S2
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Main Differences for
Neutral Sound

Threshold 

0.10

Neutral Sound 

6.6
6.8

Bass Accuracy 
 

7.1
8.5

Treble Accuracy 
 

7.1
5.7

Full Comparison

Design

Style  

Design Picture 2  

Bowers & Wilkins Pi7 S2 True Wireless Design Picture 2
Denon PerL Pro True Wireless Design Picture 2

Type  

In-ear
In-ear

Enclosure  

Closed-Back
Closed-Back

Wireless  

Truly Wireless
Truly Wireless

Transducer  

Hybrid
Dynamic
Show Text 

Comfort 
 

7.0
8.0

Comfort Picture  

Bowers & Wilkins Pi7 S2 True Wireless Comfort Picture
Denon PerL Pro True Wireless Comfort Picture

Weight  

0.03 lbs
0.04 lbs

Clamping Force 
 

0 lbs
0 lbs
Show Text 

Controls 
 

5.8
7.9

Controls Picture  

Bowers & Wilkins Pi7 S2 True Wireless Controls Picture
Denon PerL Pro True Wireless Controls Picture

OS Compatibility 
 

Not OS specific
Not OS specific

Ease Of Use  

Good
Great

Feedback  

Good
Good

Call/Music Control  

Yes
Yes

Volume Control  

No
Yes

Microphone Control  

No
No

Channel Mixing 
 

No
No

Noise Cancelling Control  

On/Off
On/Off

Talk-Through 
 

No
On/Off

Additional Controls  

Multi function + Voice Assistant
Voice Assistant
Show Text 

Breathability 
 

Breathability After Picture  

Avg.Temp.Difference  

Portability 
 

9.5
9.4

Portability Picture  

Bowers & Wilkins Pi7 S2 True Wireless Portability Picture
Denon PerL Pro True Wireless Portability Picture

 

1.2" (3.0 cm)
1.4" (3.6 cm)

 

1.6" (4.0 cm)
1.2" (3.1 cm)

 

0.8" (2.0 cm)
1.1" (2.7 cm)

Volume  

1.17 in³ (19.10 cm³)
1.84 in³ (30.10 cm³)

Transmitter Required  

No
No
Show Text 

Case 
 

7.5
7.5

Case Picture  

Bowers & Wilkins Pi7 S2 True Wireless Case Picture
Denon PerL Pro True Wireless Case Picture

Type  

Hard case
Hard case

 

2.2" (5.5 cm)
2.9" (7.3 cm)

 

2.4" (6.0 cm)
1.4" (3.5 cm)

 

1.1" (2.8 cm)
1.1" (2.9 cm)

Volume  

5.71 in³ (93.50 cm³)
4.52 in³ (74.10 cm³)
Show Text 

Build Quality 
 

8.0
7.5

Build Quality Picture  

Bowers & Wilkins Pi7 S2 True Wireless Build Quality Picture
Denon PerL Pro True Wireless Build Quality Picture
Show Text 

Stability 
 

7.5
8.0

Stability Picture  

Bowers & Wilkins Pi7 S2 True Wireless Stability Picture
Denon PerL Pro True Wireless Stability Picture
Show Text 

Headshots 1  

Angled Picture  

Bowers & Wilkins Pi7 S2 True Wireless Angled Picture
Denon PerL Pro True Wireless Angled Picture

Side Picture  

Bowers & Wilkins Pi7 S2 True Wireless Side Picture
Denon PerL Pro True Wireless Side Picture

Headshots 2  

Front Picture  

Bowers & Wilkins Pi7 S2 True Wireless Front Picture
Denon PerL Pro True Wireless Front Picture

Rear Picture  

Bowers & Wilkins Pi7 S2 True Wireless Rear Picture
Denon PerL Pro True Wireless Rear Picture

Top  

Top Picture  

Bowers & Wilkins Pi7 S2 True Wireless Top Picture
Denon PerL Pro True Wireless Top Picture

In The Box  

In The Box Picture  

Bowers & Wilkins Pi7 S2 True Wireless In The Box Picture
Denon PerL Pro True Wireless In The Box Picture
Show Text 
Sound

Sound Profile 
 

Frequency Response  

See details on graph tool
See details on graph tool

Bass Amount 
 

2.99 dB
0.46 dB

Treble Amount 
 

-2.29 dB
-1.72 dB
Show Text 

Frequency Response Consistency 
 

9.3
7.9

Consistency L  

See details on graph tool
See details on graph tool

Consistency R  

See details on graph tool
See details on graph tool

Avg. Std. Deviation 
 

0.15 dB
0.42 dB
Show Text 

Raw Frequency Response 
 

Raw FR L  

See details on graph tool
See details on graph tool

Raw FR R  

See details on graph tool
See details on graph tool

Bass Accuracy 
 

7.1
8.5

Bass  

See details on graph tool
See details on graph tool

Std. Err. 
 

4.64 dB
2.09 dB

Low-Frequency Extension 
 

10 Hz
16.82 Hz

Low-Bass 
 

4.25 dB
-1.88 dB

Mid-Bass 
 

4.86 dB
-2.29 dB

High-Bass 
 

6.1 dB
-2.62 dB
Show Text 

Mid Accuracy 
 

8.3
8.3

Mid  

See details on graph tool
See details on graph tool

Std. Err. 
 

2.26 dB
2.25 dB

Low-Mid 
 

3.23 dB
-0.12 dB

Mid-Mid 
 

-0.68 dB
-1.85 dB

High-Mid 
 

-0.01 dB
-2.76 dB
Show Text 

Treble Accuracy 
 

7.1
5.7

Treble  

See details on graph tool
See details on graph tool

Std. Err. 
 

4.37 dB
6.16 dB

Low-Treble 
 

0.11 dB
-6.4 dB

Mid-Treble 
 

-3.88 dB
-2.2 dB

High-Treble 
 

-0.39 dB
-6.48 dB
Show Text 

Peaks/Dips 
 

7.8
7.7

Peaks/Dips Graph  

See details on graph tool
See details on graph tool

Peaks 
 

1.15 dB
1.33 dB

Dips 
 

1.91 dB
1.61 dB
Show Text 

Imaging 
 

8.2
8.7

Group Delay  

See details on graph tool
See details on graph tool

Phase Response Mismatch  

See details on graph tool
See details on graph tool

Weighted Group Delay 
 

0.14
0.18

Weighted Phase Mismatch 
 

3.64
2.38

Weighted Amplitude Mismatch 
 

2.03
1.2

Weighted Frequency Mismatch 
 

1.52
1.23
Show Text 

Passive Soundstage 
 

0.6
0.7

PRTF  

Bowers & Wilkins Pi7 S2 True Wireless PRTF
Denon PerL Pro True Wireless PRTF

PRTF Accuracy (Std. Dev.) 
 

N/A
N/A

PRTF Size (Avg.) 
 

N/A
N/A

PRTF Distance 
 

N/A
N/A

Openness 
 

1.6
2.2

Acoustic Space Excitation 
 

0.8
1.0
Show Text 

Virtual Soundstage 
 

0.0
4.1

Virtual Soundstage  

Bowers & Wilkins Pi7 S2 True Wireless Virtual Soundstage
Denon PerL Pro True Wireless Virtual Soundstage

Head Modeling 
 

No
On/Off

Speaker Modeling 
 

No
On/Off

Room Ambience 
 

No
No

Head Tracking 
 

No
No

Virtual Surround 
 

No
Spatial Audio
Show Text 

Weighted Harmonic Distortion 
 

7.2
7.6

Weighted Harmonic Distortion  

See details on graph tool
See details on graph tool

WHD @ 90 
 

0.457
0.326

WHD @ 100 
 

0.174
0.136
Show Text 

Test Settings 
 

Firmware 
 

1.0.0
450214

Power 
 

On
On

Connection 
 

Bluetooth 5.0
Bluetooth 5.2

Codec 
 

aptX HD, 24-bit, 48kHz
aptX Adaptive, 24-bit, 48Khz

EQ 
 

No EQ
Off

ANC 
 

On
On

Tip/Pad 
 

Silicone (small)
Foam (medium)

Microphone 
 

Integrated
Integrated
Show Text 
Isolation

Noise Isolation 
 

8.4
7.8

Noise Isolation  

See details on graph tool
See details on graph tool

Isolation Audio 
 

Overall Attenuation 
 

-23.85 dB
-21.62 dB

Noise Cancelling  

Yes
Yes

Bass 
 

-16.21 dB
-13.24 dB

Mid 
 

-25.67 dB
-22.35 dB

Treble 
 

-30.68 dB
-30.2 dB
Show Text 

Leakage 
 

9.3
9.1

Leakage  

See details on graph tool
See details on graph tool

Leakage Audio 
 

Overall Leakage @ 1ft 
 

25.33 dB
26.53 dB
Show Text 
Microphone

Microphone Style 
 

Integrated 
 

Yes
Yes

In-Line 
 

No
No

Boom 
 

No
No

Detachable Boom 
 

No
No

Mic  

Yes
Yes

Recording Quality 
 

6.1
6.0

Microphone Frequency Response  

See details on graph tool
See details on graph tool

Recorded Speech 
 

LFE 
 

403.18 Hz
578.47 Hz

FR Std. Dev. 
 

2.73 dB
5.83 dB

HFE 
 

4,763.35 Hz
4,496.01 Hz

Weighted THD 
 

2.624
0.14

Gain 
 

-3.32 dB
24.46 dB
Show Text 

Noise Handling 
 

6.2
5.2

SpNR  

See details on graph tool
See details on graph tool

SpNR 
 

9.66 dB
26.13 dB

Noise Gate 
 

Always On
Always On

Speech + Pink Noise Handling 
 

6.0
5.0

Speech + Pink Noise Audio Sample  

Speech + Subway Noise Handling 
 

6.5
5.5

Speech + Subway Noise Audio Sample  

Show Text 
Active Features

Battery 
 

5.8
7.3

Battery Type 
 

Rechargable
Rechargable

Continuous Battery Life 
 

3.9 hrs
6.75 hrs

Additional Charges 
 

3.0
3.0

Total Battery Life 
 

15.6 hrs
27 hrs

Charge Time 
 

1.6 hrs
1.3 hrs

Power-Saving Feature 
 

Standby mode
Auto-Off Timer and Standby Mode

Audio While Charging 
 

No
Yes

Passive Playback 
 

No
No

Charging Port  

USB-C
USB-C
Show Text 

App Support 
 

7.0
7.5

App Picture  

Bowers & Wilkins Pi7 S2 True Wireless App Picture
Denon PerL Pro True Wireless App Picture

App Name  

Bowers & Wilkins Music
Denon Headphones

iOS  

Yes
Yes

Android  

Yes
Yes

macOS  

No
No

Windows  

No
No

Equalizer 
 

No
Graphic

ANC Control 
 

On/Off
On/Off

Mic Control  

No
No

Room Effects 
 

No
Yes

Playback Control 
 

Yes
No

Button Mapping  

No
Yes

Surround Support 
 

No
Yes
Show Text 
Connectivity

Wired Connection 
 

1.4
0.0

Cable Picture  

Bowers & Wilkins Pi7 S2 True Wireless Cable Picture
Denon PerL Pro True Wireless Cable Picture

Analog Audio 
 

Yes
No

USB Audio 
 

USB-C
No

Detachable 
 

No
No

Length 
 

N/A
N/A

Connector 
 

USB-C
No Wired Option

Latency - Analog 
 

123.9 ms

Latency - USB 
 

265.8 ms
N/A

Recorded Latency 
 

Recorded Latency Connection  

Analog
Show Text 

Bluetooth Connection 
 

6.7
8.1

Bluetooth Version 
 

5.010
5.3

Multi-Device Pairing 
 

No
2 Devices

NFC Pairing 
 

No

Quick Pair (Android) 
 

No

Quick Pair (iOS) 
 

No

Line Of Sight Range 
 

273.29 ft (83.30 m)
233.92 ft (71.30 m)

Latency - SBC 
 

287 ms
359 ms

Latency - aptX 
 

279 ms
233 ms

Latency - aptX Adaptive (High Quality) 
 

328 ms

Latency - aptX Adaptive (Low Latency) 
 

123 ms

Latency - LDAC 
 

N/A

Recorded Latency 
 

Recorded Latency Codec  

aptX Adaptive (Low Latency)

AAC Support 
 

Yes

PC Latency (aptX HD) 
 

363 ms

PC Latency (aptX-LL) 
 

78 ms

iOS Latency 
 

22 ms

Android Latency 
 

75 ms
Show Text 

Wireless Connection (Dongle) 
 

0.0
0.0

Line Of Sight Range 
 

N/A
N/A

Latency - Dongle 
 

N/A
N/A

Recorded Latency 
 

N/A

PC Compatibility 
 

Analog 
 

No
No

Wired USB 
 

No
No

Non-BT Wireless 
 

Audio Only
No
Show Text 

PlayStation Compatibility 
 

PS4 Analog 
 

No
No

PS4 Wired USB 
 

No
No

PS4 Non-BT Wireless 
 

Audio Only
No

PS5 Analog 
 

No
No

PS5 Wired USB 
 

No
No

PS5 Non-BT Wireless 
 

Audio Only
No
Show Text 

Xbox Compatibility 
 

Xbox One Analog 
 

No
No

Xbox One Wired USB 
 

No
No

Xbox One Non-BT Wireless 
 

Audio Only
No

Xbox Series X|S Analog 
 

No
No

Xbox Series X|S Wired USB 
 

No
No

Xbox Series X|S Non-BT Wireless 
 

Audio Only
No
Show Text 

Base/Dock 
 

5.2
2.2

Type 
 

Charging Case
Charging Case

USB Input 
 

Yes
No

Line In 
 

No
No

Line Out 
 

No
No

Optical Input 
 

No
No

RCA Input 
 

No
No

Dock Charging 
 

Yes
Yes

Power Supply 
 

USB-C
USB-C
Show Text 

Check Price

Canvas White
Pi7 S2
Searching
Finding store
Midnight Blue
Pi7 S2
Searching
Finding store
Black
PerL Pro
SEE PRICE
Amazon.com
Satin Black
Pi7 S2
Searching
Finding store
 

Bowers & Wilkins Pi7 S2 True Wireless

Denon PerL Pro True Wireless

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