Blackline X218 - Speaker Martin Audio - Free user manual and instructions
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| Product Type | Passive Subwoofer |
| Brand | Martin Audio |
| Model | Blackline X218 |
| Drivers | 2 x 18" (460mm) neodymium low-frequency drivers |
| Frequency Response | 35Hz - 150Hz ±3dB |
| Maximum SPL | 138dB peak |
| Power Handling (AES) | 1200W continuous, 4800W peak |
| Nominal Impedance | 4 ohms (two drivers in parallel) |
| Enclosure Type | Reflex-loaded, vented |
| Connectors | 2 x Neutrik Speakon NL4 |
| Dimensions (W x H x D) | 560mm x 1066mm x 700mm (22.05" x 41.97" x 27.56") |
| Weight | 68kg (149.9 lbs) |
| Material | Birch plywood with durable paint finish |
| Grille | Perforated steel with acoustic foam |
| Installation | Floor standing or stackable |
| Power Requirement | Passive (requires external amplification) |
| Recommended Amplifier | Martin Audio MA series or similar (e.g., MA5.2Q) |
| Safety Features | Rubber feet, recessed handles, protection circuit |
| Maintenance | Clean grille and enclosure with dry cloth; check connections periodically |
| Spare Parts | Replacement drivers, grilles, Speakon connectors available |
| Reparability | Modular design allows driver replacement by qualified technician |
Frequently Asked Questions - Blackline X218 Martin Audio
What is the power handling of the Martin Audio Blackline X218?
The Blackline X218 can handle 1200W continuous (AES) and 4800W peak.
What is the impedance of the X218 subwoofer?
The nominal impedance is 4 ohms due to the two 18-inch drivers connected in parallel.
Can I use the Blackline X218 outdoors?
Yes, but it should be protected from direct rain. The enclosure has a durable paint finish but is not weatherproof. Use a cover if exposed to moisture.
What amplifier is recommended for the X218?
Martin Audio recommends amplifiers from the MA series, such as the MA5.2Q, providing adequate headroom and DSP presets.
How should I connect the X218 to an amplifier?
Use Neutrik Speakon NL4 connectors. Pin 1+ and 1- are used for the subwoofer signal. Ensure amplifier is off when connecting.
What is the frequency response of the X218?
The frequency response is 35Hz - 150Hz ±3dB, optimized for low-end reinforcement.
Can I stack multiple X218 subwoofers?
Yes, the enclosure is designed for stacking. Use the integrated handles and ensure stable stacking with appropriate rigging accessories.
What maintenance does the Blackline X218 require?
Regularly clean the grille and enclosure with a dry cloth. Check Speakon connections for debris. Avoid using solvents.
Are spare parts available for the X218?
Yes, spare parts include replacement drivers, grilles, and Speakon connectors. Contact Martin Audio or authorized dealers.
How heavy is the Blackline X218?
The subwoofer weighs approximately 68kg (149.9 lbs). Use proper lifting techniques or dollies.
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