Active speakers
Active speakers contain their own amplifier to drive the speaker, which will be matched by impedance and power handling. This makes them a simple solution for distributed audio systems.
QX Series Active Moulded PA Speakers
178.758UK
QX15A
Active PA speaker units in a contemporary styled moulded ABS cabinet with integral carry handle and a constant directivity horn. The built-in mixer amplifier section delivers high output to the dri...
- Built-in amplifier with mixer section
- Lightweight ported cabinet
- Titanium compression driver
QX Series Active Moulded PA Speakers
Active PA speaker units in a contemporary styled moulded ABS cabinet with integral carry handle and a constant directivity horn. The built-in mixer amplifier section delivers high output to the driver units to develop high SPLs.
- Built-in amplifier with mixer section
- Lightweight ported cabinet
- Titanium compression driver
- Mic/line inputs with volume controls
- Tone controls
- 35mm internal top hat
- Power supply 230Vac, 50Hz (IEC)
- SNR 87dB
- THD 0.1%
- Dispersion 90° x 60° (H x V)
- Impedance 4 Ohms
Versions
| 178.755UK | 178.758UK | |
|---|---|---|
| Inputs | Mic (combo), Line (RCA) | Mic (combo), Line (RCA) |
| Power rms | 200W | 250W |
| Power max. | 400W | 500W |
| SPL @ 1W/1m | 101dB | 103dB |
| LF driver | 300mm (12") | 380mm (15") |
| LF driver : coil size | 52mmØ | 65mmØ |
| HF driver | 38mm Ti compression driver | 50mm Ti compression driver |
| HF driver : coil size | 25mmØ | 35mmØ |
| Frequency response | 45Hz - 20kHz | 40Hz - 20kHz |
| Max. SPL | 127dB | 129dB |
| Crossover frequency | 3.5kHz | 3.0kHz |
| Dimensions | 345 x 565 x 320mm | 420 x 675 x 370mm |
| Weight | 13.2kg | 17.8kg |
Support : articles
Speaker system types
Our speaker and amplifier products cover many environments and applications with a focus on clear and efficient sound coverage. Here we discuss the different types of systems
Amplifier Classes
There have been many developments in audio electronics, resulting in different amplifier circuit designs. Such designs can be divided into classes, of which 4 main types are relevant to audio – A, AB, H and D.
Power Ratings: RMS vs Max vs Peak
A summary explaining the key differences between RMS, Max and Peak power ratings.
In the box
The box for this item contains :
- QX series active speaker
- IEC power lead(s)
Downloads
Instruction manual
For 178.758UK (231KB)
For 178.758UK (231KB)
UK Declaration of conformity
For 178.758UK (252KB)
For 178.758UK (252KB)
EU Declaration of conformity
For 178.758UK (241KB)
For 178.758UK (241KB)
