
Versatile Monopole Design
Designed for both traditional surround channels and modern immersive audio formats, delivering precise, directional sound.
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Monopole surround channel speaker
The Sonus 3540 is a unique surround speaker. A monopole design, it is suitable not only for 5.1 systems, but as height surrounds for modern 3-D formats like Atmos and Auro. Ideal when you want direct sound from your surrounds or when multiple speakers are needed for your chosen format.
Warranty
2 Years
Dimensions
160mm×175mm×216mm
Versatile Monopole Design
Dolby Atmos & Auro-3D Ready
Direct & Detailed Surround Effects
Compact Installation-Friendly Design
Music & Movie Ready


Designed for both traditional surround channels and modern immersive audio formats, delivering precise, directional sound.

Ideal as a height or overhead speaker, bringing immersive three-dimensional sound to compatible home theatre systems.

The monopole design delivers accurate localisation, making every effect, movement and ambient detail more lifelike.

Its compact enclosure allows for flexible wall mounting as side, rear or height speakers without compromising performance.

Acoustically matched to the Sonus speaker range, ensuring a balanced and cohesive surround sound experience.
Description
Monopole surround channel speaker
Enclosure
MDF
Transducer Complements
HF: 1 x 1" dome tweeter LF: 1 x 4" woofer
Recommended Amplifier Power
60 ~ 100 watt
Nominal Impedance
8 Ohm
Sensitivity (1w 1m)
84dB
Frequency Response
80Hz ~ 20kHz (-3dB) on axis
Frequency Extension
65Hz ~ 22kHz (-10dB)
Crossover Frequency
3.2kHz
The Sonus range is Sonodyne's premium series of passive home theatre and hi-fi speakers, designed to deliver natural, detailed sound for both music listening and immersive home cinema.
Yes. Sonus speakers are engineered to reproduce the nuances of music while delivering the power, clarity and dynamics required for modern movie soundtracks.
The Sonus range includes floor-standing speakers, bookshelf speakers, dipole speakers, centre speakers and surround speakers, allowing you to build a complete stereo or multi-channel home theatre system.
Sonus speakers feature rigid MDF cabinets, custom-engineered drivers and precision-tuned crossovers to deliver accurate sound, controlled bass and excellent stereo imaging.
Absolutely. The Sonus range is designed as a complete speaker ecosystem, making it easy to create a perfectly matched 5.1, 7.1 or larger home theatre system.
Sonus speakers are passive loudspeakers and require an external amplifier or AV receiver. The recommended amplifier power varies by model to ensure optimum performance.
The floor-standing models are designed to deliver room-filling performance, making them ideal for medium to large listening spaces and dedicated home theatres.
Bookshelf speakers are ideal for compact rooms and stereo listening, while floor-standing speakers offer greater bass extension, higher output and a larger soundstage, making them ideal for larger spaces and home theatre applications.
1. Product Literature
Curated movies and music, handpicked to bring out the best of this product.

Angels For Each Other
Arijit Singh, Martin Garrix

New York State Of Mind
Oleta Adams

Romeo And Juliet
Dire Straits

Brothers in Arms
Club For Five

Fazaa - Reprise
Varsha Singh Dhanoa, Guru Dhanoa
I 1st experienced Sonodyne system in my uncle's place which he bought on 1986, it was the Uranus 2 stereo setup. From that point onwards I got pulled towards buying a proper 2 channel stereo for my music. I started exploring different bracds from Polk audio, Kef, Q Acoustics etc. All were nice, but lacked the precision i was looking for specifically for the folk and indo classical music. When I first heard this pair Sonodyne 3165, i was immediately blown away with the precise frequency distribution and pin point accuracy especially in the high and the mid frequencies. It brought life into all my folk and indo classical favorites like no other speakers have managed so far (At least in the similar price bracket), So i decided to buy them. I have paired it with Marantz AVR and the musicality the DUO produce is absolutely stunning. Although i had to pair the Sonodyne SUB 1010 along with the tower to get the complete frequency coverage, as i said earlier that the tower are astonishing for mids and highs and decent low end as long as you have same folk music love as i do. But for low end you have to add a sub. I do adore the SUB1 1010 since after its addition it's a complete setup to enjoy all kinds of music and movies. I have been recommending Sonodyne to all my friends and family ever since and will continue to do so. I am proud to have this in my living room and proudly say its a make in India and Made in India product!! Cheers SONODYNE, please keep making such products in the future to come.
For audiophiles, Sonodyne has been a legendary Make in India brand, & the Bandish offers 120W of pure grade sound!
Sonodyne is an Indian brand many of us (and some of our parents) grew up with, and my earliest memories of the brand date back to the late '80s/ early '90s, when I used to regularly visit an uncle in Kolkata who was a big fan of the brand and its single-minded focus on recreating music "as the artist intended". Fast forward to 2024, and while the brand continues to serve the serious audiophile and pro-studio markets, it's their Bluetooth wireless speaker range that caught my eye, specifically the most powerful in their range, the aptly named Malhar (after the raga , Malhar which, as the myth goes, has the power to induce thunder and rain). Not one for slimline aesthetics, the Malhar resembles a cajón (or a clapbox as many may know it), an immediate throwback to when audio equipment was engineered for producing clean sound, first and foremost. With its wooden cabinet, classic aesthetics and all, the 8-kilogram Malhar is pleasing on the eye, but it demands pride of place — it's not one to disappear into the décor. Around the front are two 5" glass-fiber cone drivers accompanied by two 1" tweeters, and the sides have two 5" passive radiators. Inputs are all clustered towards the rear, with optical, aux, USB ports along with a handy 5V DC USB port to charge a phone while it's connected to the speaker. Controls to switch between these inputs and change tracks/volume are all on the top and are mirrored on the supplied remote. No buttons to fiddle around with bass/treble settings (intentionally so to retain the original feel of the track), and I would have preferred the indicator LEDs to be more visible, so you know the speaker is on or which input is selected. No app or Wi-Fi connectivity, which one starts expecting at this price point. Any reservations you may have had subside the moment you start playing music on the Malhar. Irrespective of genre, the speaker stands up and delivers, with a balanced sonic signature that accurately renders the highs, mids and lows without colouring the audio, so to speak. Streaming tracks as varied as Simon and Garfunkel to the Beach Boys to some of AR Rahman's classics, Malhar reproduces the tracks damn near flawlessly across its wide 40Hz – 20kHz frequency range. Throw in some punchier tracks and bump up the volume, and you really have to wake up the neighbours before the speaker starts showing the slightest hint of distortion at the top end. Worth noting as well is the expansive soundstage and the open quality to the playback. At its price, Malhar is likely to appeal to audio purists, and despite its name, this truly is a speaker for all seasons. The 'Made in India since 1970' is bonus appeal. Rating: 8/10 Price: INR 37,500

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