SONUS SERIES

Sonus 3155

Sonus 3155 compact tower speaker

The younger sibling to the 3165, the 3155 holds its own while meeting your sonic needs. Meant for smaller rooms, the 3155 is capabale of high SPLs and low frequency extensions expected only of much larger speakers. Enjoy this compact tower for music and movies.

Tech Specifications

highlights

  • 3 way tower speaker
  • Impressive performance to size ratio in detail, loudness and low frequency extension
  • 2 colours: Rosewood and black ash
  • Unique baffle and grill design

Specifications

DESCRIPTION 3 way vented, floor-standing speaker
ENCLOSURE MDF
TRANSDUCER COMPLEMENTS: HF 1 x 1" dome tweeter
TRANSDUCER COMPLEMENTS: MF 1 x 5" midrange
TRANSDUCER COMPLEMENTS: LF 2 x 5" woofer
RECOMMENDED AMPLIFIER POWER 60 - 125 W
NOMINAL IMPEDANCE 8 Ohm
SENSITIVITY (1 w 1m) 90 dB
FREQUENCY RESPONSE (-3 dB) on axis 60 Hz ~ 20 kHz
FREQUENCY EXTENSION (-10 dB) 42 Hz ~ 22 kHz
CROSSOVER FREQUENCY 930 Hz, 3.2 kHz
INPUTS Gold plated binding post
FINISH Front: Ash; Outer skin: Option of Black ash or Rosewood
DIMENSIONS (HxWxD) mm 890 x 200 x 262
NET WEIGHT 15 kg
NOTE: Due to continuous improvements, all specifications are subject to change

SET UP YOUR SYSTEM

STEREO SET-UP

The following sketch shows an optimum set-up for a stereo system. The important part here is to place the speakers such that the head of the listener and the two monitors lie at the vertices of an equilateral triangle.

SURROUND SOUND SET-UP

The following sketch shows a 5.1 set-up. It is recommended to have a symmetrical listening position with the front left and right speakers facing the listener and the surround speakers located at the back of the listener.



Distance from walls

While placing speakers, make sure that they are at least 40 cm away from any reflecting surface. This will help minimise bumps in the low-frequency response due to reflections, and also ensure that the rear-mounting port is unobstructed. It is also required to ensure that the heat sinks at the back have adequate ventilation, for uninterrupted operation.

ACOUSTICS OF THE LISTENING ROOM

The acoustical makeup of your listening room is key in determining how good (or bad) is the sound that reaches your ear. The contents of a room (carpets, curtains, furniture etc.), its shape, and the material of which the boundaries are made, make or break your sound. The idea is to have a listening area where the absorptions and reflections are calibrated to attain, as far as possible, a neutral environment. While there are no 'quick fix' formulae to convert a room to an 'ideal listening room', here are some things that you might try to attain optimal performance.

In your listening room, clap your hands, snap your fingers, and jingle a ring of keys. If the resulting sound is unintelligible (muffled), and resonating, your room is inclined toward being reflective. In this event, you might want to: Hang up curtains/ lay a carpet or rug / introduce book cases/ other racks. In the event that the resulting sound is too damped your room is inclined toward being absorptive. You might want to remove some of the absorptive material (like those given above). 

AMPLIFIER SELECTION

We recommend using amplifiers whose continuous (rms) power per channel is greater than or equal to that the Sonus handles. We have specified an amplifier power range in the specifications section. In the event that the power is greater, care must be taken to avoid playing music at excessively loud levels and thus damage the speaker. Also, while using an amplifier with rms power lower than the rated power handling of the Sonus, please ensure that the amplifier level is kept a few notches below maximum level. Lower powered amplifiers, operating at close to max, often produce distorted signals at high levels. This can lead to damage of the high frequency driver, the tweeter

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