Description
The Blackline Q15 is a high-performance passive two-way loudspeaker designed for professional portable sound reinforcement and fixed installations. Featuring a powerful 15-inch low-frequency driver, a high-output compression driver, and a user-rotatable Differential Dispersion horn, it delivers exceptional clarity, high output, and consistent coverage. With enhanced thermal management through its die-cast aluminium chassis and a peak SPL of up to 133dB, the Q15 is ideal for demanding live sound, corporate AV, hospitality, and worship applications.
More Information
Key Features
- Passive two-way loudspeaker system
- 15″ (380mm) LF driver with 4″ (100mm) voice coil
- 1.4″ (35mm) exit compression driver with 3″ (75mm) voice coil
- Die-cast aluminium chassis for improved cooling performance
- User-rotatable Differential Dispersion horn
- 70°–90° horizontal × 50° vertical coverage
- Peak SPL of 133dB (139dB with crest factor 4)
- Symmetrical multi-angle plywood enclosure
- Suitable for horizontal or vertical deployment
- Cloth-backed perforated steel grille
- Integrated ergonomic handles made from recycled ABS
- Pole-mount socket with removable cover
- Dual NL4 connectors
- Flexible mounting via M8 inserts
- 8Ω nominal impedance
Technical Specifications
- Type: Passive Two-Way Loudspeaker
- Frequency Response: 51Hz – 17kHz (±3dB)
- Low Frequency Extension: 41Hz (-10dB)
- LF Driver: 15″ (380mm) with 4″ (100mm) Voice Coil
- HF Driver: 1.4″ (35mm) Exit Compression Driver with 3″ (75mm) Voice Coil
- Rated Power: 800W AES, 3200W Peak
- Sensitivity: 98dB
- Maximum SPL: 127dB Continuous, 133dB Peak, 139dB Peak (Crest Factor 4)
- Nominal Impedance: 8Ω
- Dispersion: 70°–90° (Horizontal) × 50° (Vertical)
- Horn Type: User-Rotatable Differential Dispersion
- Crossover Frequency: 1.5kHz Passive
Dimensions (W × H × D)
- 420 × 695 × 400 mm
- 16.5 × 27.4 × 15.8 in
Weight
- 33.8 kg (74.6 lbs)







