The Polk on paper and in measurement: 38 Hz at -3 dB from two 8 inch woofers, against the KEF's 46 Hz at -3 dB. KEF quotes about 28 Hz in-room at -6 dB, but in a home theater with a sub, both are crossed over at 80 Hz anyway.

Will my receiver drive them?

Both dip to around 3.2 to 3.5 ohms. A receiver rated for 4 ohm loads will be fine at normal volumes; check the spec sheet for a 4 ohm rating. For very loud listening, an external amp helps either one.

What center should I pair with each?

Stick with the same family for a seamless front stage: the Polk Reserve R400 with the R700, and the KEF Q6 Meta Center with the Q7 Meta.

Head to head

Polk Reserve R700 vs KEF Q7 Meta

The two mid-priced towers most people cross-shop. Polk's measured, full-range R700 against KEF's Uni-Q Q7 Meta with its wide sweet spot. The deciding factor is bass and receiver load versus imaging and a slim cabinet.

Home Theater HubUpdated October 12, 2026How we choose

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Both are three-way towers sold per speaker at similar prices, and both are meant to be the front left and right of a home theater that also plays music. The Polk is bigger, goes deeper, and has been measured flat by Erin's Audio Corner. The KEF uses a Uni-Q coaxial driver, so the whole sofa hears the same balance, in a slimmer cabinet. The one question that decides it: do you need the towers to carry the bass, or will a subwoofer do that?

Spec	Polk Audio Reserve R700 Front left/right in medium to large rooms View on Amazon	KEF Q7 Meta (each) Front left/right in medium rooms where imaging and a slim cabinet matter View on Amazon
Best for	Front left/right in medium to large rooms	Front left/right in medium rooms where imaging and a slim cabinet matter
Price tier	Mid-range (each)	Premium (each)
Drivers	2 x 8 in woofers, 6.5 in midrange, 1 in ring radiator tweeter	4 in Uni-Q (coaxial tweeter) with MAT, 2 x 6.5 in woofers
Bass extension	38 Hz (-3 dB)	46 Hz (+/-3 dB); about 28 Hz in-room (-6 dB)
Sensitivity	88 dB	87 dB
Impedance	8 ohm compatible, dips to about 3.5 ohm	4 ohm nominal, 3.2 ohm minimum
Recommended power	30 to 300 W	15 to 200 W
Independent measurements	Erin's Audio Corner: about +/-2 dB on axis	None of this exact model yet
Matching center	Polk Reserve R400	KEF Q6 Meta Center

Pick the Polk Audio Reserve if

You want real bass from the towers for music, without always running a sub.
The room is medium to large and the towers can sit about two feet from the front wall.
You want a speaker with published independent measurements behind it.

Pick the KEF Q7 Meta if

Several people watch from a wide sofa; Uni-Q keeps the balance the same across every seat.
Space is tight and a slimmer cabinet matters.
A subwoofer will handle the low end, so bass extension is less important.

Verdict

Buy the Polk Reserve R700 if you want a full-range tower with measured performance and deeper bass; it is the stronger choice for a larger room or a music-first system. Buy the KEF Q7 Meta if imaging and a wide sweet spot matter more, because Uni-Q gives every seat the same tonal balance and the cabinet is easier to live with. The exception is a budget receiver: both dip into the 3 ohm range, so check that yours is rated for 4 ohm loads either way.

Common questions

Which has more bass?: The Polk on paper and in measurement: 38 Hz at -3 dB from two 8 inch woofers, against the KEF's 46 Hz at -3 dB. KEF quotes about 28 Hz in-room at -6 dB, but in a home theater with a sub, both are crossed over at 80 Hz anyway.
Will my receiver drive them?: Both dip to around 3.2 to 3.5 ohms. A receiver rated for 4 ohm loads will be fine at normal volumes; check the spec sheet for a 4 ohm rating. For very loud listening, an external amp helps either one.
What center should I pair with each?: Stick with the same family for a seamless front stage: the Polk Reserve R400 with the R700, and the KEF Q6 Meta Center with the Q7 Meta.