
Polk Audio Signa S2
Score: 71/100
Roku Streambar Pro
Score: 70/100Rankings

The Polk Audio Signa S2 is a low-profile 2.1 soundbar with a wireless 5.25-inch subwoofer delivering solid bass and VoiceAdjust dialogue enhancement. Its plastic construction and limited channel configuration restrict its appeal for larger home-theater setups. Best for budget-conscious owners of 40-55-inch TVs seeking easy installation and clear dialogue.

The Roku Streambar Pro is a 2-in-1 4K HDR streaming device and soundbar delivering 36 W of virtual surround sound with Wi-Fi and voice-assistant support. Its modest power and lack of Dolby Atmos limit cinematic impact, especially without the optional subwoofer. Best suited for apartments or dorm rooms where a simple, all-in-one streaming and audio upgrade is desired.
| Attribute | ![]() | ![]() |
|---|---|---|
3best | 2 | |
— | 36 Wbest | |
13.34 cmbest | — | |
| ↓ lower better | 1.8 kgbest | 2.495 kg |
1 yearsbest | 1 yearsbest | |
90 cmbest | 81.79 cm | |
5.46 cm | 7.11 cmbest | |
8.41 cm | 9.91 cmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(2) | ||
Audio Channels | 3 | 2.0 |
Wireless Subwoofer | true | false |
Features(1) | ||
Night Mode | true | false |
Design(4) | ||
Soundbar Weight (kg) | 1.8 kg | 2.495 kg |
Soundbar Width (cm) | 90.0 cm | 81.79 cm |
Soundbar Height (cm) | 5.46 cm | 7.11 cm |
Soundbar Depth (cm) | 8.41 cm | 9.91 cm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the Signa S2 for its sleek, low-profile design, effective VoiceAdjust dialogue enhancement, and solid bass from the wireless subwoofer, positioning it as a strong budget option for users seeking Dolby Digital virtual surround. However, they note the plastic subwoofer housing and lack of disclosed amplifier power as drawbacks that may limit its appeal for larger or more demanding home-theater installations.
Consumers appreciate the clear vocals, powerful bass, and hassle-free Bluetooth streaming, often highlighting the quick setup and wall-mountable form factor. Recurring complaints focus on occasional subwoofer dropouts, limited volume headroom in bigger rooms, and occasional HDMI ARC compatibility quirks.

Professional reviewers praise the Streambar Pro's compact yet sturdy design, its seamless HDMI-ARC/optical connectivity, and the ability to stream 4K HDR content while delivering 36 W of virtual surround sound. They highlight the integrated voice-assistant support and USB media playback as added conveniences, but note that bass performance suffers without the optional subwoofer and that the modest power may not satisfy larger spaces.
Everyday users appreciate the ease of upgrading older TVs to 4K/HDR streaming and the noticeable boost in dialogue clarity and overall volume. The Bluetooth music streaming and voice remote are frequently mentioned as convenient features, while recurring complaints focus on thin bass, the need for an optical cable when HDMI-ARC isn't available, and the bar's length making it hard to fit in smaller cabinets.
“Excellent value with combined streaming and sound upgrade.”

“Heavy and good looking.”

“One-cable ARC setup works great for me.”


