| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |

| Model Name | DELTA-AX12 | DELTA-AX15 | DELTA-AX15B | DELTA-AX18B |
|---|---|---|---|---|
| System Type | Active 12" 2-way Bi-Amplified | Active 15" 2-way Bi-Amplified | Active 15" Subwoofer | Active 18" Subwoofer |
| Frequency Response (+/-3 dB) | 60 Hz — 20 KHz | 50 Hz — 20 KHz | 42 Hz — 200 Hz | 38 Hz — 200 Hz |
| Frequency Range (-10 dB) | 55 Hz — 20 KHz | 45 Hz — 20 KHz | ||
| Calculated Maximum SPL @1 m | 130 dB | 131 dB | 130 dB | 132 dB |
| Low Frequency Transducer — Size (mm / inches) | 332 mm / 12 | 404 mm / 15 | 404 mm / 15 | 470 mm / 18 |
| Coil Size (mm / inches) | 75 mm / 3 | 75 mm / 3 | 101.6 mm / 4 | 101.6 mm / 4 |
| Impedance | 4 | 4 | 8 | 8 |
| High Frequency Transducer — Type | Compression Driver | Compression Driver | ||
| Coil Size (mm / inches) | 51.2 mm / 2 | 51.2 mm / 2 | ||
| Exit Size (mm / inches) | 35.6 mm / 1.4 | 25 mm / 1" | ||
| Diaphragm Material | Titanium | Titanium | ||
| Impedance | 8 | 8 | ||
| Nominal Coverage (H x V) | 90° x 45° | 90° x 45° | ||
| Amplifiers | ||||
| Low-Frequency Power Amplifier RMS | 600 w (Class D) | 600 w (Class D) | 900 w (Class D) | 1000 w (Class D) |
| High-Frequency Power Amplifier RMS | 100 w (Class D) | 100 w (Class D) | NA | NA |
| Amplifier Protection | Yes | Yes | Yes | Yes |
| Power On Protection | Power switch on/off mute | Power switch on/off mute | Power switch on/off mute | Power switch on/off mute |
| Thermal Protection | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset |