Not everyone needs surround sound from multiple speakers placed around the room. If your priority is cleaner, louder audio from your TV without the complexity of satellite speakers and subwoofer placement decisions, the Sony HT-S400 makes a strong case for itself. At Rs. 23,990 at Sony Mony Electronics in Mumbai, it is a focused 2.1 channel system that does its job exceptionally well.
What Is the HT-S400 and Who Is It For
The HT-S400 is a 2.1 channel soundbar — a main unit with a wireless subwoofer but no rear speakers. Total output is 330W. This makes it less powerful on paper than the HT-S40R but the comparison is not entirely fair. The S400 pushes all that power into just two active elements rather than five, which means the quality per channel is higher.
The intended buyer is someone who wants dramatically better sound than built-in TV speakers, does not want to run cables or place speakers around the room, and cares more about music and stereo clarity than cinematic surround effects. This describes a significant portion of Mumbai buyers — particularly those upgrading a bedroom TV or moving into a new flat and wanting a clean, simple audio setup.
X-Balanced Speaker Unit Technology
Sony's X-Balanced Speaker Unit is the key technology differentiator in the HT-S400. Standard speaker drivers are circular. Sony's redesign uses a non-circular diaphragm shape that increases the vibrating surface area without increasing the speaker's physical footprint. The practical result is higher sound pressure at lower distortion levels — the unit plays louder and cleaner before reaching its limits.
The effect is clearly audible at higher volumes. Where many soundbars in this price range become harsh or congested when pushed, the HT-S400 maintains clarity. For late-night listening at moderate volumes or for filling a larger room without cranking the volume, this matters.
Wireless Subwoofer and Bass Performance
The wireless subwoofer pairs automatically during initial setup and stays connected without any ongoing configuration. It can be placed anywhere in the room — behind the sofa, in a corner, or under a side table — which is a genuine practical advantage in Mumbai apartments where cable routing is difficult.
Bass performance is well-tuned for the price. The subwoofer adds low-frequency weight without dominating the presentation. Movies with action sequences and music with prominent bass lines both benefit. The level can be adjusted independently using the remote, which is useful if you share a wall with neighbours and want to reduce bass transmission at night without affecting overall volume.
Connectivity
HDMI ARC is the primary connection and works seamlessly with any ARC-equipped TV. A single cable carries audio from the TV to the soundbar and allows the TV remote to control volume. Optical audio input covers TVs without ARC. Bluetooth handles wireless streaming from phones and tablets — the connection maintains reliably at typical room distances.
Like the HT-S40R, the HT-S400 is compatible with Sony Bravia TVs featuring Acoustic Centre Sync. When connected to a compatible Bravia via HDMI, the TV's built-in speakers activate as an additional front channel, widening the soundstage without any additional hardware.
Design and Placement
The HT-S400 soundbar is slim and can sit directly in front of a TV without blocking the remote sensor. It can also be wall-mounted below the TV using the included bracket. The form factor suits Mumbai homes where the TV unit is often compact and surface space is limited. The bar's silver and black finish works with most TV colour schemes.
Comparing the HT-S400 to the HT-S40R
The HT-S400 costs Rs. 23,990 versus Rs. 26,900 for the HT-S40R. The S40R includes rear speakers and more total power. The S400 has no rear speakers but uses higher-quality driver technology in the main unit.
Choose the HT-S40R if you watch a lot of movies and want physical surround sound from behind your seating position. Choose the HT-S400 if you want the best possible stereo sound quality in a clean two-component setup, or if rear speaker placement is not practical in your space. For music listening, the HT-S400 is the stronger performer.
Buy the Sony HT-S400 in Mumbai
The Sony HT-S400 2.1ch Soundbar is available at Sony Mony Electronics at Rs. 23,990 with no-cost EMI options available on eligible cards. As an authorised Sony dealer in Mumbai, we handle Sony India warranty registration at the point of sale. Visit sonymony.co.in to place your order online or check current EMI offers. We deliver across Mumbai, Navi Mumbai, and Thane with same-day delivery for orders placed before 2 PM.