Design and build:

Polk R200 and KEF Q350 speakers are almost the same size. Comparing the Polk R200 vs KEF Q350, the Polk follows the traditional speaker design with a tweeter on top and a woofer on bottom. KEF has a unique design where the tweeter is placed in the middle of the woofer driver.

The Polk R200 is available in Black, white and brown color. The enclosure is cross braced to get rid of any unwanted resonances or distortions. A fabric grille is available to cover the speaker drivers. It has an MDF cabinet and overall, the speaker has good build quality.

KEF Q350 is found in black, nut and white colors. The enclosure has a satin finish and is made of MDF. Unlike the Polk, the KEF does not include any speaker grille.

Performance:

Comparing Polk R200 vs KEF Q350, while they have same driver size their material and technology are different. Based on user preference, you can like either the Polk R200 or the KEF Q350 model. Similar to other drivers in the Polk Reserve series, the R200 has 1” Pinnacle Ring tweeter and 6.5” Turbine Cone woofer. This specially designed tweeter is responsible for delivering crisp and clear highs. The tweeter works with a waveguide to ensure the sound spreads within a large area while minimizing any distortion.

For handling the midbass to low end frequencies, the Turbine woofer will be responsible. Mids are clear and detailed while the low ends are well-defined. While listening to music, the vocals were loud and clear. The speaker has Polk patented rear firing X-port that works with ETF to deliver smooth and undistorted bass. It eliminates port noises as well. We listened to the speaker for hours without any ear fatigue. Play them for long hours to allow break-in.

KEF Q350 has 1” aluminum dome tweeter and 6.5” aluminum woofer. Similar to Polk, the tweeter works to emit sound within a wider sweet spot. The woofer minimizes cone breakup and distortion. This leads to clear mids and punchier bass. That said, since the speaker is reasonably priced, you can easily It uses a Z-flex surround that allows the sound to move out from the tweeter. We listened to these speakers where most of the time it had good accuracy and dynamics. It has a wide and engaging soundstage as well.

KEF claims the centered tweeter ensures high-resolution audio with good accuracy. The CFD used in the bass port helps to reduce midrange leakage. With the included foam ports, you have the option to block the port if the bass sounds inaccurate. During our listening period, we heard the speakers remain accurate at low and high volumes. Listening to music and movies was pure joy. KEF ensures smooth transition from tweeter to woofer driver. Overall, we like how KEF Q350 can be room-filling with adequate bass.

Use case and installation:

Both Polk R200 and KEF Q350 can be used as front or rear speakers. Connection with amplifier or receiver is elaborately explained in the Polk user manual. Once the receiver is connected, set the speaker to small and the crossover between 50 to 80 Hz. Since it is a 4 ohm speaker, it is power hungry so make sure the amp/receiver matches the speaker.

You can choose one of the following: Denon 900H, Onkyo NR7100 AVR, Sansui G-7000 receiver, Yamaha RX-V6A, Willsenton R8 tube amplifier, etc. With KEF Q350 speaker, the listed amps/receivers are compatible: QSC GX3, Cambridge Audio AXA35, Yamaha A-S301, Sony STR-DN-1080, Cambridge AXR100, etc. These speakers are suitable for medium-sized rooms.

Speaker placement:

KEF Q350 speakers should be around 6-10’ away from each other. Leave a gap of 10” from back wall and 40” from side walls. Place them on stands on shelves so that they are within 18-24” above the floor. Angle the speakers towards the user, adjust it to find the best spot.

Polk suggests making an equilateral triangle between the speakers and user. Toe-in the speakers and place them on table or stand. The included rubber feet helps the speaker to stay firm in one place.

Compatible devices:

KEF Q350 can be a part of home theater with the following speakers: floorstanding speakers (Q550/Q750/Q950), bookshelf speakers (Q150), center channel speakers (Q650C/Q250C), Dolby Atmos speaker (Q50A) and KEF Kube subwoofer.

Polk is compatible with this speaker list: floorstanding loudspeakers (R700/R600/R500), bookshelf loudspeakers (R100), center-channel speakers (R400/R300), LCR loudspeaker (R350), height speaker (R900) and subwoofer (PSW10).

Cost:

The Polk R200 vs KEF Q350 comparison shows they are almost similar priced. Polk R200 is slightly costlier than the KEF Q350. The price will increase because they are passive speakers and will need an additional amplifier or receiver.

FAQ:

Can I connect speakers from other brands to the Polk R200?

Yes, Polk will be compatible with speakers and subwoofers from other brands like KEF, Jamo, etc.