JBL Control 1 Pro & Adastra A4-Plus Bluetooth Background Music System – 4 x Speakers, Amplifier & 100m Cable

DETAILS
Complete 4-Speaker Commercial Music System With Bluetooth Amp, Cables & Wall-Mount Speakers – Ideal for Background Audio.
This all-in-one commercial audio system includes four JBL Control 1 Pro speakers, an Adastra A4-Plus Bluetooth amplifier, and 100 metres of double-insulated speaker cable — ideal for delivering high-quality background music and announcements in cafés, restaurants, bars, retail spaces, offices and similar environments.
The JBL Control 1 Pro is a professional, compact loudspeaker trusted worldwide in commercial AV installations. Known for its clear, balanced sound and wide dispersion, it’s perfectly suited for background audio in public spaces. Supplied with wall-mount brackets and available in black or white, these robust speakers are quick to install and blend seamlessly into modern interiors.
At the heart of the system is the Adastra A4-Plus amplifier, offering 4 x 300W of power and a range of flexible input options including Bluetooth streaming, USB/SD playback, FM radio, and stereo line inputs. Each speaker output channel has independent EQ and volume control, allowing you to fine-tune the sound in different parts of a single zone — useful for installations where coverage needs vary across a venue. Two microphone inputs with a talk-over function make this system equally suitable for announcements, events or presentations.
The included 100m reel of double-insulated speaker cable ensures a reliable and tidy installation. With flexible PVC sheathing and internal shielding, it’s well-suited to commercial environments with long cable runs or areas where interference may be a concern.
Whether you're setting up a background music system in a coffee shop or upgrading the audio in a small bar, this package delivers reliable performance with all the essential components included.
Key Features of the JBL Control 1 Pro & Adastra A4-Plus System:
- JBL Control 1 Pro – Professional 2-way wall-mount speakers, available in black or white
- Adastra A4-Plus Amplifier – High-power 4 x 300W stereo amplifier with Bluetooth, USB, FM radio & EQ
- Independent Volume/EQ Control per Channel – Fine-tune each speaker output separately for flexible sound coverage
- 100m Double-Insulated Speaker Cable – Flexible, shielded cable with PVC jacket for clean, reliable installations
- Multiple Playback Options – Bluetooth, USB/SD, FM radio, stereo line inputs & microphone inputs with talk-over
- Ready for Installation – Includes wall-mount brackets and all essential components
What's Included:
- 4 x JBL Control 1 Pro Speakers (Black or White, with wall brackets)
- 1 x Adastra A4-Plus 4 x 300W Stereo Amplifier
- 1 x 100m Reel of Double Insulated Speaker Cable (2 x 0.75mm²)
SPECS & DOWNLOADS
Adastra A4-PLUS Specifications
Download the PDF Datasheet HERE >
- Power supply: 230Vac, 50Hz (IEC)
- Fuse: T6.3A, 250V
- Output power RMS @ 4 Ohms: 4 x 300W
- Output power RMS @ 8 Ohms: 4 x 150W
- Amplifier construction: Class D
- Dynamic Range: 92dB
- Frequency response: 20Hz - 20kHz ±0.5dB
- Input impedance: 20k Ohms (balanced), 10k Ohms (unbalanced)
- Microphone inputs: 2 x 6.3mm jack (mono)
- Line inputs Line 1: L+R (6.3mm jack/RCA), Line 2: L+R (RCA)
- Auxiliary input: 3.5mm stereo jack
- Audio source: USB/SD mp3 playback, FM tuner, BT receiver
- Input controls: Aux, Media, Line1, Line2, Mic1, Mic2, Talkover
- Line output: 4 x RCA
- Antenna connection: F type (FM tuner)
- Bluetooth Version: 2.3
- Output controls: 2 x source select, 2x Bass, 2x Treble, Ch1, Ch2, Ch3, Ch4
- Dimensions: 482 x 260 x 88mm
- Weight: 7.13kg
JBL Control 1 Pro Specifications
Download the Product Data Sheet HERE >
- Frequency Range (-10 dB): 80 Hz – 20 kHz
- Frequency Response (±3 dB): 100 Hz – 18 kHz
- Power Capacity: 150 Watts
- Sensitivity: 87 dB SPL, 1 W @ 1 m
- Maximum SPL: 108 dB continuous, 114 dB peak
- Crossover Frequency: 4.2 kHz
- Nominal Impedance: 4 Ohms
- Low Frequency Driver: 135mm (5.25") woofer
- High Frequency Driver: 19mm (0.75") polycarbonate dome tweeter
- Enclosure Material: Polypropylene structural foam
- Input Connectors: Spring-loaded terminals
- Finish Options: Black (C1Pro) or White (C1Pro-WH)
- Dimensions (H x W x D): 235 x 159 x 143 mm
- Net Weight (Each): 1.8 kg
- Shipping Weight (Pair): 4.6 kg
- Accessories Included: Wall-mount brackets
- Optional Accessories: MTC-1A ultra-duty bracket, MTC-8 heavy-duty bracket
Double Insulated Speaker Cable Specifications
- CSA: 2 x 0.75mm²
- Strands: 2 x (12 x 0.2mmØ Cu + 12 x 0.2mmØ CCA)
- Dimensions: 7mmØ
- Current: 6A max.
- Sheath: Black PVC
- Length: 100m

