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Deal.ai › Polk Audio › In-Wall Speakers
Polk Audio
Polk Audio 70-RT Full-Range Bandpass Dual-Port

Polk Audio 70-RT Full-Range Bandpass Dual-Port

Best price now

$199.00at Best BuyChecked 17 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $199.00 at Best Buy (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the Polk Audio 70-RT Full-Range Bandpass Dual-Port

The Polk Audio 70-RT is a rectangular in-wall speaker built around a bandpass enclosure with two tuned ports. The enclosure controls the woofer's output instead of relying on the wall cavity, which gives it more predictable bass than open-back in-wall speakers. It suits surround and distributed-audio installs where a plain white grille and a sealed back are wanted. It is a passive speaker: no Bluetooth, Wi-Fi, AirPlay or app control, so it needs an amplifier or AV receiver. Against open-back rivals it trades some deep-bass extension for tighter, more controlled low end.

Best forSurround and rear-channel duty in a home theaterWhole-house audio runs on a receiver or multi-zone ampRooms where a sealed back and white grille matterInstallers wanting predictable bass from a wall cavity
Pros
  • Bandpass enclosure with dual ports gives controlled, punchy bass
  • Sealed back keeps output consistent regardless of wall cavity
  • White grille blends into painted walls
  • Passive design works with any amplifier or AV receiver
  • Rectangular cutout is simpler to fit than round in-ceiling models
Cons
  • No wireless streaming, app control or built-in amplification
  • Bandpass tuning limits deep-bass extension versus larger open-back models
  • Needs a receiver or amp, adding to the total system
  • Cutout and enclosure depth must be planned before drywall goes up

Polk Audio 70-RT Full-Range Bandpass Dual-Port prices at every store

  • Best BuyNew

    In stock

    $199.00Free shippingChecked 17 h ago
    Visit Best Buy
  • NordstromNew

    In stock

    $199.00Free shippingChecked 17 h ago
    Visit Nordstrom

Store links may earn us a commission. Some prices via Klarna.

Polk Audio 70-RT Full-Range Bandpass Dual-Port price history

Lowest price we've seen: $199.00 on Nov 10 at Best Buy. Tracked across 2 stores since Nov 10.

Specifications

AirPlay
NoSource
Spotify Connect
NoSource
Bluetooth
NoSource
Wi-Fi
NoSource
AirPlay 2
NoSource
App Control
NoSource
Color
WhiteSource
Chromecast for Audio
NoSource

Questions and answers

Does the Polk 70-RT need an amplifier?
Yes. It is a passive speaker with no amplifier, Bluetooth or Wi-Fi, so it must be wired to an AV receiver or multi-zone amplifier.
How is it different from a standard open-back in-wall speaker?
The bandpass enclosure and two ports control the woofer's output inside a sealed box, so bass stays consistent no matter what is behind the wall.
Can I use it for surround channels?
Yes. It works well as a surround or rear-channel speaker, and the sealed back suits walls shared with other rooms.
Does it come with a grille?
It ships with a white grille that can be painted to match the wall.
Can I stream music to it directly?
No. It has no Bluetooth, Wi-Fi, AirPlay or Spotify Connect; streaming comes from the receiver or source connected to it.
Where is the Polk Audio 70-RT Full-Range Bandpass Dual-Port cheapest?
At Best Buy, for $199.00, as of our latest check.
Where can I buy the Polk Audio 70-RT Full-Range Bandpass Dual-Port?
2 stores we checked sell it, including Best Buy, Nordstrom.

Stores we've priced the Polk Audio 70-RT Full-Range Bandpass Dual-Port at

  • Best Buy deals and prices
  • Nordstrom deals and prices

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