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USER MANUAL - GRAVO ACTIVE SUBWOOFER

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Description

The Gravo subwoofer series is a range of powerful stand-alone active subwoofers, designed to work 
in a 2.1 configuration with two active satellite speakers or an external stereo amplifier and passive 
speakers. Using rugged and acoustically superior birch plywood as the cabinet material and a high-
headroom class D amplifier, these subwoofers are both robust in their handling and powerful in their 
performance. Adding precision transducers, they offer great sound as an extension in the subbass 
frequency range to any portable and installed sound system. 

The Gravo series consists of three different models:

    SWA-1210: 12” Driver
    SWA-1510: 15” Driver
    SWA-1810: 18” Driver

Availability of models may very based on territory. The specifications for each model are available at 
the end of this user manual. 

Setting up

A. Location

When choosing a location for the Gravo subwoofers, keep the following in mind:
    During transport or setup, avoid touching the cones of the loudspeakers with any object or with  
your hands, as this could cause irreparable damage. Do not remove the protection grille. 
    Avoid pointing microphones in the direction of the speakers, as this could result in annoying feed-
back which can damage the speaker drivers.

B. Position

Gravo subwoofers are designed for floor standing operation. Make sure that the floor is flat and even 
to avoid the speaker to tumble. Avoid resonating floor positions for better sound. 

C. Satellite Speaker Placement 

The Gravo subwoofers are equipped with a 
1-3/8 inch (35mm) stand pole mount, to allow 
mounting of a satellite speaker right on top of 
the subwoofer by means of a 35mm distance 
tube. 

Before lifting the speaker onto the tube, be confi-
dent that you can handle the weight safely and 
without injury to yourself, others, or damage to 
the speaker.

When taking the satellite speaker off the tube, 
take caution if the tube gets caught in the sateli-
ite speaker’s  stand mount, as it may fall off unex-
pectedly and cause risk of injury or damage. 

35mm pole mount insert

Summary of Contents for GRAVO Series

Page 1: ...RevA 06 2017...

Page 2: ...onnections to and from the product are neither subject to potentially des tructive mechanical impact nor present any risk of stumbling or other accident risk to people Audio equipment may generate sou...

Page 3: ...ep the following in mind During transport or setup avoid touching the cones of the loudspeakers with any object or with your hands as this could cause irreparable damage Do not remove the protection g...

Page 4: ...hannel is played by the internal speaker and the right chan nel is sent to a 2nd speaker Various filter options complete the feature set Voltage selector switch The product shall be preset to the volt...

Page 5: ...r faults If the PROTECT indicator does not light off after a cool down period address a qualified service technician for inspection of the unit LIMIT Indicator Indicates that the internal level limite...

Page 6: ...connections red shield black tip sleeve tip sleeve red tip shield sleeve red tip black sleeve shield uncon 3 1 2 plug side 3 1 2 cable side red 2 black 3 shield 1 red 2 shield 1 3 2 3 1 3 1 2 3 1 2 ca...

Page 7: ...P 1 R 3 L 2 SAT OUT L 1 R 3 L 2 SAT OUT R 120 150Hz SW AMP REV ON PHASE LIMIT POWER AMPLIFIER SPEAKER LIMIT PROTECTION SUBWOOFER 35Hz 120Hz 150Hz POWER AMPLIFIER MUTE Frequency response 6 dB 39Hz 150H...

Page 8: ...facturer Adelto Technologies Limited Address Unit 2A Springfield Road Springfield Industrial Estate Burnham on Crouch Essex CM08UA England We declare on our own responsibility that the equipment is in...

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