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Polk Audio I-Sonic Digital Audio System

Powered speaker system with AM/FM radio and iPod®/iPhone® dock

3 Reviews

Item # 107ISONIC3

This item is no longer available.

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Our take on the Polk Audio I-Sonic Digital Audio System

There's a simple way to get room-filling sound from your iPhone or iPod. It's the Polk I-Sonic  Digital Audio System (DAS). The I-Sonic DAS is a self-contained system that fits easily on a kitchen table or nightstand. In addition to a built-in dock for your iPhone or iPod, the I-Sonic also has an AM/FM radio tuner, and a digital alarm.

Polk I-Sonic DAS

With its four-speaker array, the system delivers balanced sound in a 360° radius.

There's a simple way to get room-filling sound from your iPhone or iPod. It's the Polk I-Sonic  Digital Audio System (DAS). The I-Sonic DAS is a self-contained system that fits easily on a kitchen table or nightstand. In addition to a built-in dock for your iPhone or iPod, the I-Sonic also has an AM/FM radio tuner, and a digital alarm.

Exceptional sound

The I-Sonic's four-speaker array creates a spacious 360° soundfield by having one pair of speakers fire forward and the other pair fire rearward. The sound is balanced no matter whether you're standing in relation to the system. And the I-Sonic features Polk's patented PowerPort® technology to deliver solid, well-rounded bass. A powerful built-in amplifier ensures accurate and dynamic sound reproduction at all volume levels. You'll experience  rich, natural sound throughout your room.

Connection options

You can dock your iPhone directly to the  I-Sonic and enjoy not only music stored on your device, but audio from any streaming music services or Internet radio stations you normally access through your phone.

Don't have a device compatible with the dock? Just use the auxiliary input and you're in business. If you have an iPhone 5 or other Apple portable that uses a Lightning connector, you can either get an adapter for the dock, or use the auxiliary input.

Product Highlights:

  • compatible with docking iPods and iPhones
  • compatible with iPhone 5 and 7th Generation iPod touch with Lightning connector adapter (available separately)
  • stereo AM/FM tuner with 30 presets
  • digital clock with alarm
  • large LED display
  • built-in 4-speaker array with PowerPort for strong bass
  • auxiliary stereo minijack input for connecting portable devices
  • minijack headphone output
  • remote control
  • AM and FM external antennas
  • 14-1/4"W x 4-15/16"H x 9-9/16"D
  • weight: 4.2 lbs.
  • warranty: 1 year
  • Our 60-day money-back guarantee

good sound and easy operation

t mc, odessa texas

What's in the Box:

  • Table-top iPod/iPhone speaker dock
  • AC power adapter (w/ attached 6' DC power cord)
  • 4' AC power cord
  • Remote control (CR2025 battery installed)
  • AM loop antenna
  • FM wire antenna
  • 6 iPod adapter inserts
  • Owner's Guide
  • Online Registration Card
  • Important Additional Information
  • Polk Audio brochure

Polk Audio I-Sonic Digital Audio System Reviews

Average Customer Review(s):

(3 Reviews)

sounds good

t mc from odessa texas on 4/16/2013

Crutchfield Customer Review (What's this?)

good sound and easy operation



Polk Audio I-Sonic Digital Audio System

EH from columbus,ohio on 4/1/2013

Crutchfield Customer Review (What's this?)

Great sound! I bought it to use as an iPod dock but even the sound from the FM tuner is excellent.. I didn't want to spend a lot on such a device but I bought it during a price reduction and I feel it was well worth the money. I have not heard a Bose unit, but I can't imagine it sounds any better than this one.

Pros: Great sound and adjustable bass and treble.

Cons: Would have preferred a built in antenna system for this money rather than having to attach AM and FM cables.

Isonic 3

Richard from Woodbridge VA on 1/7/2013

Crutchfield Customer Review (What's this?)

Amazing sound as one would expect out of a Polk product. Gave this as a gift to my son in law and he couldn't believe how good it sounded.

Pros: Great sound, great price!

Cons: No built in CD player


Hands-on research

Product Research


Overview: The I-Sonic Digital Audio System from Polk is an advanced, high-powered tabletop speaker dock for your iPod and iPhone. It also includes a built-in AM/FM Tuner, auxiliary input, and headphone output. Polk's I-Sonic 4-speaker array, on-board amplifier, advanced digital signal processing, and patented PowerPort technology all work together to create dynamic, full-range, room-filling sound.

I-Sonic 4-Speaker Array Technology: The Digital Audio System features Polk's exclusive I-Sonic patented 4-speaker array technology that create 360-degrees of room filling audiophile sound. Inside the sleek body of the I-Sonic is twin speaker pairs. One pair of speakers fires forward, while one pair of speakers fires rearward, projecting your audio in a more realistic way. You will hear big, lifelike sound everywhere in the room, even if you are to the side or behind the unit. By manipulating the signals to the speakers through a pattern of signal cancellation, reinforcement and delays, Polk Audio engineers created a larger sound stage and more specific imaging. The result is a rich, full stereo image projected all around the I-Sonic Digital Audio System into the room, with the clarity and spacious sound.

Note: Place the I-Sonic iPod speaker dock on a flat surface such as a table, countertop, TV stand, or bookshelf. In order to get the maximum benefits of the I-Sonic, place the unit so that the rear speakers are not blocked.

PowerPort Bass Technology: Enhancing the I-Sonic's unique 4-speaker array is a hidden PowerPort bass vent on the bottom of the I-Sonic that cuts turbulence as it funnels moving air from the interior baffles, creating realistic low end response that adds surprising width and depth. PowerPort Technology allows the Polk I-Sonic to deliver more deep, musical bass than you'd expect from a moderately sized table-top speaker dock.

High-Powered Amplifier: The I-Sonic Digital Audio System's 4-speaker array is powered by a powerful onboard digital amplifier.

DSP: Exclusive new Digital Signal Processing (DSP) algorithms ensure incredible audio coverage in any sized room, at any volume level.

  • Dynamic Loudness: Dynamic Loudness contour technology automatically adjusts bass and treble response to account for your ears' frequency sensitivity at low volume. You'll hear rich, well balanced sound even at late-night listening levels.
  • Dynamic Compression: Dynamic Compression technology prevents distortion without changing the character of your audio. Even if you crank it up, the I-Sonic with will always sound crisp, clear, and clean.

Bass & Treble Controls: The I-Sonic has user adjustable Bass & Treble controls. This simple feature allows you to adjust the sound to suit your personal taste or to compensate for sonic flaws in program material. The Bass & Treble can be set independently from -6 to +6.

"Made for iPod/iPhone" Dock:The I-Sonic Digital Audio System from Polk features a top-panel Apple 30-pin dock connector to dock your iPod or iPhone device. The iPod nano (7th gen), iPod touch (5th gen), and iPhone 5 will require the Apple Lightning to 30-pin adapter or Lightning to 30-pin cable (both, sold separately) in order to dock with this system. The I-Sonic supports playback of music stored on your iPod/iPhone or music apps downloaded to your Apple device. You can control basic playback functions such as Play/Pause, Previous/Next Track, and Fast Forward/Reverse from the I-Sonic's top-panel controls or the included remote. Your iPod/iPhone remains fully functional so you can operate your Apple device's advanced playback functions from its clickwheel or touchscreen. The speaker dock will also display song/artist information from music stored on your iPod/iPhone and from select music apps (such as Pandora). In addition, our iPod/iPhone's battery will be charged while docked. The Polk I-Sonic is "Made for iPod/iPhone" compatible and supports the following iPod/iPhone model functions (as of 12/12/2012):

iPod ModelGenerationTested VersionMedia TypeControl TypeDisplay TypeCharge
AudioVideoDock/RemoteiPod/iPhoneArtist/Song TextTrack Info
video 5th1.3YNYNYYY
classic 80GB1.1.2YNYYYYY
nano 1st1.3.1YNYNYYY
7th*1.01 PCYNYYYYY
  • *The iPod nano (7th gen), iPod touch (5th gen), and iPhone 5 will require the Apple Lightning to 30-pin adapter or Lightning to 30-pin cable (both, sold separately) in order to dock with this system.
  • Apple iPod/iPhone software updates may change functionality results. If you download a newer software version, you may need to reset the head unit and your iPod/iPhone to regain functionality. If this doesn't work, you may need to wait until a newer software update is available.

AM/FM Tuner: The I-Sonic features a built-in AM/FM tuner with manual, seek, and preset tuning. You can store up to 20 stations presets. An external AM loop and FM wire antenna is included.

Aux Input: The I-Sonic features one rear-panel 3.5mm auxiliary input for connecting an external audio source such as portable MP3 player. You can adjust the unit's aux input level to match the output level of your device.

Headphone Output: The I-Sonic contains a top-panel 3.5mm headphone output for connection of a set of optional headphones for private listening. The speakers are muted as soon as you plug in headphones.

LCD Display: The unit features a blue backlit LCD with adjustable brightness levels. The unit will display Time, Source, Playback, Song/Artist, and Alarm information.

Digital Clock (Alarm/Snooze/Sleep): The I-Sonic features a built-in digital alarm clock that lets you wake up to your favorite tunes on your iPod, iPhone, or favorite radio station (or default tone). Your can press the Snooze button to temporarily turn off the alarm for 10 minutes. The Sleep Timer will turn the unit automatically off after 15, 30 45, 60, 75, or 90 minutes of use.

Remote Control: The included IR remote control provides wireless operation of the I-Sonic speaker dock, as well as controls basic playback functions (Play/Pause, Previous/Next Track, FF/RW) of your docked iPod/iPhone.

External Power Supply: The Polk I-Sonic operates off of standard household current using the included external AC power adapter and 4' AC power cord.

  • Input: 100-240V ~ 50/60Hz, 1.2A
  • Output: 24V - 2.09A

Our Product Research Team

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