Devialet Phantom Ultimate 108dB Review: Rated 4.4/5

Last updated: November 5, 2026

The Devialet Phantom Ultimate 108dB is rated 4.4/5 for sound quality, #41 of 119 Large Size Powered Bookshelf Speakers. See all Powered Home rankings for every top pick.

Devialet Phantom Ultimate 108dB · Editor's rating 4.4/5, ranked #41 of 119 Large Size Powered Bookshelf Speakers
Check price at Amazon ($7,998 per pair) →

Prices on this page were last checked November 7, 2026 at 7:34 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Brand: Devialet

#41 Devialet Phantom Ultimate 108dB: $7,998 per pair Amazon $3,999.00 B&H Photo Video $3,999.00 eBay

Older model: the Devialet Phantom I (ranked lower, rated 4/5). See every Devialet Phantom generation.

Same family: the Devialet Phantom Ultimate 98dB (smaller bookshelf, estimated 4.4/5).

Pros: A single cabinet wireless speaker with astonishingly deep bass, nearly flat sound, and full streaming support for a complete music system. Erin’s measurements show full bass output all the way down to about 20Hz, the lowest frequency measured, which is remarkable from a single cabinet about 34cm deep. The listening window is close to flat, with a -0.04dB per octave tilt and 0.80 smoothness, earning a 6.73 preference score on its own and 7.38 with an ideal subwoofer. Directivity is smooth, so room reflections keep the same tonal balance as the direct sound. Wi-Fi 6 streaming with AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect and Roon Ready, plus Ethernet and optical inputs, makes one unit a complete music system. Measured bass extension of <21Hz (-3dB).

Cons: DSP limiting and compression take over near maximum volume, so the deep bass you hear at moderate levels shrinks when you push it; Erin’s 96dB distortion test ran into the limiter. Stereo means buying two units, which puts a pair well above conventional powered monitors that measure as well. There is no analog input or subwoofer output, and the rounded shape does not sit on a shelf or desk stand like a box speaker.

Is the Devialet Phantom Ultimate 108dB right for you?

Buy it if

  • you want deep bass without a subwoofer (-3 dB at 21 Hz).

Skip it if

  • you want the best value: the higher-rated Mesanovic CDM65 costs about $2,000 less.
ReleasedApr 2026 (7 months ago)
AES InputNo
Amplifier Power1,100W total
AppYes (Devialet)
Aux InputNo
Bass Extension (-10dB)<21Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)<21Hz (measured, Erin’s Audio Corner)
BluetoothYes
Bluetooth CodecsSBC, AAC
Bluetooth Version5.3
Coaxial InputNo
Dimensions10”H x 9.7”W x 13.5”D (255 x 246 x 342 mm)
DriversAluminum tweeter, aluminum midrange, two opposed aluminum woofers
Frequency Response14Hz - 35kHz (Manufacturer specified)
HDMI InputNo
InputsWi-Fi, Ethernet, Bluetooth, Optical
Maximum SPL108dB (manufacturer specified)
Optical InputYes
RCA InputNo
Spinorama Preference Score6.73
Spinorama Preference Score with Perfect Sub7.38
Streaming ServicesYes (AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Roon Ready, UPnP)
Subwoofer OutputNo
TRS InputNo
USB InputNo
Weight24.5 lbs (11.1 kg) each
Wi-FiYes (Wi-Fi 6, dual-band)
XLR InputNo
Check current price at Amazon ($3,999.00) →Check current price at B&H Photo Video ($3,999.00) →Search eBay for Devialet Phantom Ultimate 108dB →

Price history (per pair)

$7,998Sep 24, 2026 to Nov 5, 2026: $7,998Sep 2026Nov 2026

The price has held at $7,998 since Sep 2026.

Head-to-Head Comparisons

9 comparisons

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