COSMO CF 118 - Audio HK AUDIO - Free user manual and instructions
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| Product Type | Passive subwoofer |
| Brand | HK Audio |
| Model | COSMO CF 118 |
| Category | Audio loudspeaker |
| Loudspeaker Type | Bass reflex subwoofer |
| Woofer Size | 18" (457 mm) |
| Power Handling (RMS) | 800 W |
| Power Handling (Peak) | 3200 W |
| Impedance | 8 ohms |
| Frequency Range | 38 Hz – 180 Hz |
| Sensitivity | 97 dB (1W/1m) |
| Maximum SPL | 132 dB peak |
| Input Connectors | 2 x Speakon NL4 |
| Enclosure Material | 18 mm plywood |
| Grille | Steel with acoustic foam |
| Handles | 4 integrated handles |
| Pole Mount | M20 threaded flange |
| Dimensions (H x W x D) | 600 x 570 x 740 mm |
| Weight | 38 kg |
| Power Supply | None (passive design) |
| Cleaning | Wipe with a dry cloth |
| Safety | Use secure stacking and rigging |
| Spare Parts | Replacement diaphragm and connectors |
Frequently Asked Questions - COSMO CF 118 HK AUDIO
What is the HK Audio COSMO CF 118 best used for?
The COSMO CF 118 is a passive subwoofer designed for live sound and portable PA systems. It delivers deep, powerful bass for music reproduction in medium-sized venues.
How do I connect the COSMO CF 118 to an amplifier?
Use a Speakon NL4 cable from your amplifier's output to one of the subwoofer's input connectors. If you have a second speaker, you can link it by connecting a cable from the link output to the other unit.
What is the impedance of the COSMO CF 118?
The nominal impedance is 8 ohms. When connecting multiple subwoofers, consider the total load on the amplifier to avoid overloading.
What amplifier power is recommended for the COSMO CF 118?
For the COSMO CF 118, it is recommended to use an amplifier delivering 600 to 1200 W at 8 ohms. This range provides enough headroom for reliable operation.
Can I use the COSMO CF 118 with a crossover?
Yes, connect the subwoofer to a low-pass filtered output. Set the crossover frequency around 80–120 Hz for seamless integration with top speakers.
How do I mount the COSMO CF 118?
Place the subwoofer on the floor or a stable platform. For satellite speakers, use the integrated M20 pole socket on top to attach a speaker pole.
How do I clean and maintain the subwoofer?
Use a dry cloth to wipe the cabinet and a vacuum cleaner with a brush to remove dust from the grille. Do not use solvents or water on the speaker components.
Is the COSMO CF 118 suitable for outdoor events?
It is designed for indoor use, but can be used outdoors under a protective cover. Keep the connectors and cabinet away from moisture to prevent damage.
Can I repair the COSMO CF 118 if the speaker driver fails?
Yes, replacement parts such as the diaphragm, voice coil, and grille are available. Contact HK Audio service for authorized spare parts to ensure proper performance.
What is the maximum sound pressure level of the COSMO CF 118?
The maximum peak SPL is approximately 132 dB. This is achievable with the recommended amplifier power in free-field conditions.
User questions about COSMO CF 118 HK AUDIO
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USER MANUAL COSMO CF 118 HK AUDIO
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Product information
Brand : HK AUDIO
Model : COSMO CF 118
Category : Audio