Definitive Audio Koala 12A BT (Bluetooth)
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Definitive Audio
https://www.definitiveaudio.co.uk
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A Speaker Designed for Versatility: The Spirit of the KOALA BT Series
The KOALA BT series was designed to offer a modern compromise between sound reproduction, reliability, and mobility. Available in three sizes (10", 12", and 15"), it allows you to choose the right air volume and projection according to your use, while maintaining a common philosophy: lightweight, high-performance active speakers that are easy to deploy. The KOALA BT 12 model sits in the middle of the range, with a natural balance between bass depth, projection, and size.
Who Is It For and What Uses? DJ, Live, Conferences, and Stage Monitors
The DEFINITIVE AUDIO KOALA BT 12 is aimed at users who want an active speaker capable of adapting to many contexts: DJ performances, small concerts, conferences, events, community gatherings, as well as fixed installations and mobile setups. Its 12" format makes it a very relevant option when seeking energetic sound without moving to a larger size. Note: like the rest of the series, it can also be used in stage monitor position, convenient for monitoring during rehearsals or on stage.
Bluetooth, Bi-Amplification, and Controls: Immediate Handling
Bluetooth: Playback and Wireless Stereo Link
The KOALA BT 12 features a Bluetooth connection to link a compatible device, ideal for playing a playlist, soundtrack, or background music without cables. It also offers a Bluetooth wireless stereo link allowing 2 KOALA speakers to connect together, providing a wider stereo image for a more immersive sound. In both cases, the advertised range is up to 20 m (depending on the environment).
2-Way Sound Architecture and Hybrid Amplification
Designed as a 2-way bi-amplified active speaker, the KOALA BT 12 combines a 12" woofer (2" voice coil) with a 1.35" tweeter. The amplification uses a Class D amplifier for the bass (efficiency and power handling) and a Class AB amplifier for the treble (precision), delivering a dynamic and usable sound for both amplified music and vocals.
Controls and Connectivity: Flexible for Sound Systems and Events
The connectivity supports multiple sources: one input combining a female XLR and 6.35mm Jack, and a second input with female XLR and female RCA. You have Bass and Treble controls and a volume level knob to quickly adapt the tonal color and level to the room, microphone, or program type. A LINK output XLR male is also provided to chain to another speaker via cable when needed.
Technical specifications
| Battery | No | Cutaway | Yes |
| Number of channels | 2 channels | Speaker structure | polymer molding |
| Bluetooth | Yes | Inputs | combo XLR/jack |
| Speaker diameter | 12" | Outputs | XLR |
| Number of speakers | 2 | Color | Black |
| EQ | Yes | Power output | 300 W |
| Media Player | Bluetooth | ||
| Input 1 | 1 female XLR and 6.35mm female Jack | Power indicator | blue LED on front panel |
| Input 2 | 1 female XLR and 2 female RCA | Material | injected polypropylene |
| LINK output | male XLR | Dimensions (W x H x D) | 426 x 666 x 424 mm |
| Bluetooth connection for linking a device equipped with this system | max distance 20m | Weight | 14.2 Kg |
| Bluetooth wireless stereo link (allows connecting 2 KOALA speakers together) | max distance 20m | ||
Questions frequently asked
Can the Definitive Audio Koala 12A BT operate in stereo Bluetooth?
The Bluetooth connection allows wirelessly linking two KOALA speakers for stereo playback, with a range of up to 20 m depending on the environment. Playback from a compatible Bluetooth device is also supported.
What connectivity is available on this 12-inch active speaker?
Input 1 combines a female XLR and a 6.35 mm jack. Input 2 includes a female XLR and two female RCA connectors, while an XLR male LINK output allows wired daisy chaining.
Is the Koala 12A BT suitable as a stage monitor?
Thanks to its angled front, this speaker can be placed in a stage monitor position. Its molded polymer enclosure houses a 12-inch woofer and a 1.35-inch tweeter. The weight is 14.2 kg.
What power output does the Koala 12A BT deliver?
The amplification provides 300 W and is based on a 2-way bi-amplified architecture, with Class D for the low frequencies and Class AB for the highs.
Can the bass and treble be adjusted on this speaker?
Bass and treble controls, along with a volume control, allow adjusting the sound according to the source and the listening environment.
