HiFi Specs

A/B comparison · Speakers

Bowers & Wilkins 606 speakers vs KEF R100: which to buy?

Specs from both manufacturer datasheets Updated Sep 9, 2026

Bowers & Wilkins 606 speakers vs KEF R100 in brief

  • Spec rows: Bowers & Wilkins 606 speakers wins 0, KEF R100 wins 1, 9 tied or not compared, of 10 rows.
  • Our scores: Bowers & Wilkins 606 speakers 8.9/10, KEF R100 7.9/10.
  • Bowers & Wilkins 606 speakers wins: sound quality (9.3 vs 8.1), midrange clarity (9.5 vs 7.8), treble detail (9.5 vs 7.5), design (9 vs 8.6), value for money (8.5 vs 8.3).
  • KEF R100 wins: bass response (8.5 vs 8).
  • Who should buy which: Pick the Bowers & Wilkins 606 speakers for sound quality, midrange clarity, treble detail, design and value for money. Pick the KEF R100 if bass response matters most.

The short answer

The Bowers & Wilkins 606 is my pick of these two. It leads on sound quality, midrange clarity and treble detail by a clear margin, and it edges ahead on design and value as well, which makes it the stronger all-round bookshelf speaker here. Buy the Bowers & Wilkins 606 if what you want from a speaker is insight.

CH A Bowers & Wilkins 606

Bowers & Wilkins 606 speakers

Channel A · Bookshelf · 2018
VS
CH B KEF R100

KEF R100

Channel B · Bookshelf · 2015
Bowers & Wilkins 606 speakers KEF R100
20 Hz 100 1k 10k 20k
8.9/10Bowers & Wilkins 7.9/10KEF

Rows won, of 10 compared Bowers & Wilkins 0 · KEF 1 · tied or not compared 9

Datasheet · Side by side

Spec by spec

Built from both structured spec sheets. The delta chip sits on the winning side; rows with no defensible winner carry no chip.

Sound & drivers

2-way Configuration 2-way
1x 0.98" Tweeter + 1x 6.5" Mid-woofer Drivers 1x 1" Tweeter + 1x 5" Mid-woofer
52 Hz to 28 kHz Frequency responseReference not published 56 Hz to 28 kHz
Not published Max SPL 107 dB
Ported (Bass Reflex) Enclosure Ported (Bass Reflex)

Power, electrical, physical

88 dB SensitivityReference not published 86 dB
8 Ω Impedance 8 Ω
120 W Amp range 25 to 100 W
343 mm Height · weight 290 mm
3 yr Warranty 5 yr +2 yr

A higher sensitivity figure means the same loudness from less amplifier power. Values come from each manufacturer datasheet.

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From our reviews

How it scored, paired

6 aspects, two channels

Bowers & Wilkins 606 speakers KEF R100
Sound quality 9.0 8.0
Bass response 8.0 8.5
Midrange clarity 9.5 7.3
Treble detail 9.5 7.0
Design 9.0 8.6
Value for money 8.5 8.2

Each aspect is scored 0 to 10 in our reviews, against the rest of the class.

Verdict

Which should you buy?

The Bowers & Wilkins 606 is my pick of these two. It leads on sound quality, midrange clarity and treble detail by a clear margin, and it edges ahead on design and value as well, which makes it the stronger all-round bookshelf speaker here.

Buy the Bowers & Wilkins 606 if what you want from a speaker is insight. It pulls apart layers in a mix that softer speakers gloss over, it places vocals and high notes right at the front of the room, and it manages that without turning brittle or shrill. It suits keen listeners running modest gear, since 88 dB sensitivity and an 8 ohm load keep it easy to drive, and the 343 mm cabinet wants a little breathing room rather than a shelf crammed against a wall. If a bright, vivid presentation excites you rather than tires you, this is the one to get.

Buy the KEF R100 if low end matters most to you and the room is small. It takes bass response by a clear margin and keeps that punch firm at volume without letting it smother the mids, and at 290 mm tall it slips into a compact setup in a way the taller box cannot. A 25 to 100 W amp range and 86 dB sensitivity ask for a competent but not heroic amplifier, and the 5 year warranty is the longest cover of the two. Go in knowing the balance tips towards the highs, so a warm source or a little EQ helps during loud playback.

Availability

Where they stand on price

Bowers & Wilkins 606 speakers

The Bowers & Wilkins 606 isn't sold new any more.

Availability last checked Sep 9, 2026
KEF R100

The KEF R100 isn't sold new any more. The closest current model is the KEF Q3 Meta.

Why this one: Same size 2 way bookshelf in the entry Q line that replaced the R100 slot and price

Availability last checked Sep 9, 2026

We do not show live prices; price tiers are our editorial categories. As an Amazon Associate, HiFi Specs earns from qualifying purchases. Our scores and comparisons are never influenced by affiliate partners.