Description
The Adastra BP4V-B is a weatherproof 4-inch background speaker built for 100V line systems, and it's a water-resistant version of the well-regarded BC series PA speakers. The main driver uses a water-resistant polypropylene (PP) cone, while the tweeter has a polymer diaphragm, both chosen to keep working reliably in humid and outdoor conditions. It's supplied singly in black, so you can buy exactly the number you need for a given install.
The cabinet is a moulded ABS enclosure fitted with a powder-coated aluminium grille, giving an IP54 weatherproof rating. Connection from your amplifier is through a hard-wired 1m lead, which keeps the IP protection intact all the way back to a junction box or indoor area. A rotary selector switch lets you set the 100V line tapping, or run the speaker at 8 Ohms if you'd prefer low-impedance operation. That makes it easy to balance output across several speakers on the same 100V line.
Mounting is straightforward. A wall mounting bracket is supplied, and there are alternative M6 threaded points if you'd rather fix it another way. The operating temperature range runs from -5°C to +40°C, so it copes with covered outdoor areas, garden bars, patios and similar spots that see damp and cold. If you need clear, even background sound across a wider range of environments than a standard indoor speaker can handle, the BP4V-B is a sensible choice.
Specification
| Weight |
1.63KG |
| Dimensions |
150mm x 195mm x 150mm |
| Tappings |
20W, 10W, 5W, 2.5W + 8 Ohm |
| Impedance : 100V |
500, 1k, 2k, 4k Ohm |
| SPL @ 1W/1m |
88dB |
| Power rms : 8 Ohms |
35W |
| Power max. : 8 Ohms |
70W |
| Frequency response |
110Hz - 20kHz |
| Tweeter |
25mm (1'') balanced dome |
| Woofer |
100mmØ (4'') polypropylene cone |
| Colour |
Black |
| Construction |
Moulded PP cabinet with aluminium grille |
| IP rating |
IP54 |
| Operating temperature range |
-5°C to +40°C |
| Connection |
1m hard-wired speaker cable |
Downloads
Product Manual
Frequently Asked
Can I use the BP4V-B at 8 Ohms instead of 100V?
Yes. The rotary selector switch lets you choose a 100V line tapping or switch to 8 Ohms low-impedance operation, so the speaker suits both PA and standard amplifier setups.
How weatherproof is it?
The BP4V-B is rated IP54, using a water-resistant PP cone, a polymer tweeter diaphragm and a moulded cabinet with aluminium grille. The 1m hard-wired lead keeps the IP protection intact to a junction box or indoor area.
How does it connect to an amplifier?
Connection is through a hard-wired 1m speaker cable. This should run to a junction box or indoor space to maintain the weatherproof rating.
Is a mounting bracket included?
Yes, a wall mounting bracket is supplied. There are also alternative M6 threaded mounting points if you prefer to fix it a different way.
What temperatures can it handle?
The operating temperature range is -5°C to +40°C, so it works in covered outdoor areas and damp conditions as well as indoors.
Is it sold as a pair?
No, the BP4V-B is supplied singly, so you can order the exact quantity your installation needs.