Samsung HW-LST70T vs Polk Audio Signa S4

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Votes 1 1
Rating 5 5

HW-LST70T vs Signa S4 comparison chart

Samsung HW-LST70T
Polk Audio Signa S4
Multichannel surround

Samsung HW-LST70T vs Polk Audio Signa S4 review

Samsung HW-LST70T
Polk Audio Signa S4

Comparing Samsung HW-LST70T and Polk Audio Signa S4, all pros and cons of devices become clear. Advantages have shown that Signa S4 has advantages over HW-LST70T mainly in terms of audio performance. According to the results of our comparison, HW-LST70T received 6.4 points out of 10 possible, and Signa S4 was rated 7.8 points.

Advantages Samsung HW-LST70T over Polk Audio Signa S4

  • Has an integrated subwoofer
  • Possible to create a multi-room system

Advantages Polk Audio Signa S4 over Samsung HW-LST70T

  • Separate subwoofer provided
  • Available the Apple Music service
  • Available the Amazon Music service
  • Supports object-oriented sound with Dolby Atmos technology
  • HDMI ARC supports

Audio features

The HW-LST70T is rated 6 of 10 against 5 for the Signa S4 according to the audio features rating.

Signa S4

It worth understanding the difference between the two types of amplification: a passive soundbar does not have its own amplifier and receives amplification from the signal source, while an active soundbar has a built-in amplifier. The same active type of amplification is used in the HW-LST70T and the Signa S4.

There are stereo soundbars and multichannel ones. It is with the help of multichannel devices that you can get volumetric sound. It is worth noting one of the main differences, the HW-LST70T has 3.0 channels, while the Signa S4 has 3.1.2 channels. Also, the output power of the soundbars under consideration is different, Samsung HW-LST70T has 210 (overall) W, and 80 (overall) W has the competitor.

HW-LST70T Signa S4
Built-in channels3.03.1.2
Amplification typeactiveactive
Output power, W210 (overall)80 (overall)
Separate speaker (in package)00
Separate speaker connectionswirelesshas not


Soundbars can have a built-in or external subwoofer. The first type is inseparable from the soundbar body, but for the second, you can choose a good location for deep bass. A built-in subwoofer is only present in the HW-LST70T. The Signa S4 comes with an external subwoofer. Competitors support wireless connection to a separate external subwoofer.

HW-LST70T Signa S4
Built-in subwoofer
Separate subwoofer (in package)
Separate subwoofer connectionswirelesswireless

Multichannel surround

Unlike stereo, when reproducing multichannel sound, each specific direction of sound corresponds to its dedicated channel with a separate independent loudspeaker, which creates a three-dimensional sound stage. The HW-LST70T received rating 5 out of 10 for multichannel audio processing, but the Signa S4, in the same category, earned 9 out of 10 points.

Signa S4

The peculiarity of Dolby Atmos is that this format is object-oriented, that is, each object of the audio signal is sounded separately and linked to its spatial location. Dolby Atmos surround sound support is implemented only in Polk Audio Signa S4.

DTS:X is an algorithm for processing sound scenes by the processor, linking directly to objects, rather than channels, and calculating the optimal distribution of sound output in a room. This ability to reproduce surround sound with DTS:X technology is not implemented in any of the soundbars in this comparison.

HW-LST70T Signa S4
Dolby Atmos
Dolby (other)Dolby Digital, Dolby Pro Logic IIDolby Digital, Dolby Digital Plus, Dolby TrueHD
DTS (other)has notDTS HD

Streaming services

The possibility to listen online to millions of songs from one device has become a reality thanks to streaming services. For the ability to work with streaming services, the HW-LST70T received 5 points, and the Signa S4 - 10 on a 10-point scale.

Signa S4

The popular Spotify service is available on both soundbars.

HW-LST70T Signa S4
Apple Music (AirPlay)
Amazon Music
Other streaming serviceshas notPandora, SoundCloud


The existence of a sufficient number of current connectors significantly expands the functionality of the device. For example, only through HDMI is it possible to implement the transfer of object-oriented formats, and the presence of a Bluetooth connection will allow remote control, etc. Connectivity of competitors was rated 6 out of 10.

Signa S4

The presence of Wi-Fi in the soundbar allows you to get rid of wires when connected to a sound source and get minimal audio latency when playing content from streaming services. Wireless connection via Wi-Fi is possible on both devices.

Bluetooth connection is now one of the main communication protocols for speaker systems, which provides excellent quality and minimal audio latency. The availability of Bluetooth protocol, we can see in both models. The HW-LST70T has 1/0 HDMI inputs/outputs, but the Signa S4 got 0/1 HDMI inputs/outputs from the manufacturer.

HDMI ARC is a very usefull technology that creates a two-way communication channel between a TV and another device. This is convenient since there is no need to use optical and other cables in the system. HDMI ARC is a feature unique to Polk Audio Signa S4. Connecting external devices via USB can be done on both models.

HW-LST70T Signa S4
Ethernet (RJ45)00
HDMI input/output1/00/1
Optical digital input/output1/01/0
USB1 (USB 2.0)1 (USB 2.0)
Coaxial digital input/output0/00/0
Analog audio input/output (RCA)0/00/0
Headphone output00
Subwoofer output00


Voice control is designed to make operating the device more convenient. This allows you to control basic soundbar functions from anywhere in the room.

Proprietary applications allow you to control your soundbars remotely. This is possible both via Bluetooth and Wi-Fi. The ability to control the soundbar using the application is implemented in each of the competitors. Both soundbars have a built-in microphone.

Some soundbars can be part of a multi-room system and it is an affordable solution for sounding the whole house. The HW-LST70T has the ability to use a multiroom system.

HW-LST70T Signa S4
Voice controlAmazon Alexa
App control
Remote control


HW-LST70T Signa S4
Size (Wx H x D), cm/in122 x 12.7 x 5/48 x 5.5 x 2.1104.6x9.5x6/41.2x3.7x2.4
Weight, kg/pounds6.3/14.82.9/6
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