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  3. BeoSound A9 Mk5 vs Phantom Ultimate 108 dB

Bang & Olufsen BeoSound A9 Mk5 vs Devialet Phantom Ultimate 108 dB

What BeoSound A9 Mk5 does better (0) and where Phantom Ultimate 108 dB wins (3) — every spec side by side.

Bang & Olufsen BeoSound A9 Mk5
Bang & Olufsen · 2023BeoSound A9 Mk5
8.8Score
0 advantages≈ $3,500
Higher score
vs
Devialet Phantom Ultimate 108 dB
Devialet · 2025Phantom Ultimate 108 dB
3 advantages≈ $2,800
Dimensions

Size comparison

BeoSound A9 Mk5Phantom Ultimate 108 dB
701 × 908415287 × 290446
BeoSound A9 Mk5Phantom Ultimate 108 dBDifference
Height908 mm290 mm+618 mm
Width701 mm287 mm+414 mm
Depth415 mm446 mm−31 mm
Weight14,000 g12,300 g+1,700 g

Drawn to the same scale from the official dimensions (front and side).

Why is BeoSound A9 Mk5 better than Phantom Ultimate 108 dB?

BeoSound A9 Mk5 has no measurable advantages in this pair.

Why is Phantom Ultimate 108 dB better than BeoSound A9 Mk5?

  1. Lowest frequency33 Hz vs 14 Hz2.4×
  2. Weight14,000 g vs 12,300 g+14%
  3. Highest frequency25,000 Hz vs 35,000 Hz+40%
Specifications

Side by side

Sound
Output power1,100 W1,100 W
Lowest frequency33 Hz14 Hz
Highest frequency25,000 Hz35,000 Hz
Battery & charging
Mains poweredYesYes
Battery powered (portable)NoNo
Connectivity
WirelessYesYes
Bluetooth version4.2—
Bluetooth codecsAAC, SBC—
Hi-res codec (LDAC / aptX HD / LHDC)No—
aptXNo—
LDACNo—
USB-CYes—
3.5 mm jack / AUXYes—
Optical inputYesYes
EthernetYes—
Smart & streaming
Wi-FiYesYes
AirPlayYes—
Chromecast / Google CastYesYes
Spotify ConnectYesYes
Multiroom—Yes
Voice assistantGoogle Assistant—
Voice assistant built inYesYes
Companion appYes—
Design & build
Weight14,000 g12,300 g
Width701 mm287 mm
Height908 mm290 mm
Depth415 mm446 mm
Features
Hands-free calls—Yes
Party / stereo pairingYes—
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