C6.8T - Loudspeaker Martin Audio - Free user manual and instructions
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| Product Type | Passive Coaxial Speaker |
| Brand | Martin Audio |
| Model | C6.8T |
| Frequency Response | 65 Hz - 20 kHz (-10 dB) |
| Power Handling (AES) | 250 W continuous, 1000 W peak |
| Impedance | 8 ohms (nominal) |
| Sensitivity (1W/1m) | 95 dB SPL |
| Maximum SPL | 124 dB (peak) |
| Drivers | 1 x 6.5" LF, 1 x 1" HF on Coaxial |
| Dispersion | 100° conical (coaxial) |
| Transformer Taps (70V/100V) | 60W, 30W, 15W, 7.5W, bypass (8 ohms) |
| Enclosure | Multilayered birch plywood, black textured finish |
| Dimensions (W x H x D) | 210 x 350 x 220 mm |
| Weight | 8.5 kg (18.7 lbs) |
| Input Connectors | 2 x NL4 speakON, 1 x barrier strip (70V/100V) |
| Rigging Points | 8 x M6 inserts for brackets or wall mount |
| Configuration | Passive, suitable for distributed audio systems |
| Cleaning | Wipe with damp cloth; do not use solvents |
| Safety | Ensure secure mounting; disconnect power before servicing |
| Spare Parts | Contact Martin Audio for replacement drivers or transformers |
Frequently Asked Questions - C6.8T Martin Audio
What is the impedance of the C6.8T in bypass mode?
In bypass mode (no transformer), the impedance is 8 ohms nominal.
Can the C6.8T be used outdoors?
The enclosure is not weather-rated. For outdoor use, protect from rain and direct sunlight. Consider a weatherproof cover.
How do I set the transformer tap for 70V systems?
Use the selector switch on the back to choose between 60W, 30W, 15W, 7.5W, or bypass. Ensure the amplifier and total load do not exceed the transformer rating.
What is the maximum SPL of the C6.8T?
The maximum peak SPL is 124 dB at 1 meter.
How should I mount the speaker?
Use the M6 rigging points with suitable brackets. Ensure the mount can support the weight (8.5 kg). For wall mounting, use heavy-duty anchors.
What type of connector does the speaker use?
It has two NL4 speakON connectors for low-impedance connection and a barrier strip for 70V/100V systems.
Is the C6.8T a powered or passive speaker?
It is a passive speaker. An external amplifier is required.
What is the recommended amplifier power?
An amplifier delivering 250-500W into 8 ohms per channel is recommended for optimal performance.
How do I clean the speaker cabinet?
Use a damp cloth with mild soap if needed. Avoid abrasive cleaners or solvents that may damage the finish.
Where can I find replacement parts?
Contact Martin Audio or authorized dealers for genuine drivers, transformers, or grilles. Do not use unauthorised parts.
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USER MANUAL C6.8T Martin Audio
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Product information
Brand : Martin Audio
Model : C6.8T
Category : Loudspeaker