
Ci7-SUB subwoofer
The Ci7-SUB is the installation version of the C7-SUB. It is acoustically compatible with the standard road version differing only in cabinet construction and mounting hardware. The Ci7-SUB is a bass-reflex subwoofer that employs a large, specially shaped reflex port enabling the Ci7-SUB to achieve high sound pressure levels with minimal power compression and breathing effects. The Ci7-SUB cabinet is constructed from marine plywood with an impact resistant paint finish. The front of the loudspeaker cabinet is protected by a rigid metal grill, covered with acoustically transparent foam. Four M16 threaded inserts are provided for attaching installation hardware. The cabinet rear panel is fitted with a single NL4 connector. The loudspeaker cabinet is also available in Special Colour (SC) and Weather Resistant (WR) options.
Amplifiers
The Ci7-SUB can be driven either by the d&b D6 or D12 dual channel power amplifiers configured for the C7-SUB. More detailed information on specific loudspeaker setups with d&b amplifiers is available either in the relevant loudspeaker or amplifier manuals.
Applications
| Live music | |
| Playback | |
| Speech | |
| Stage monitor | |
| Subwoofer | ![]() |
Data
| Components | 18" driver |
Max. sound pressure (1 m, free field) with D6 / D12 |
131 / 135 dB SPL |
| Power handling capacity (RMS / peak 10 ms) | 400 / 1200 W |
| Frequency response (-5 dB) | 44 Hz - 140 / 100 Hz![]() |
| Cabinets per channel D6 / D12 | 2 / 2![]() |
| Dimensions mm (H x W x D) | 740 x 580 x 620 |
| Weight kg | 45 |
| Dimensions inch (H x W x D) | 29.1 x 22.8 x 24.4 |
| Weight lb | 99 |
Application information is presented for guidance only. We reserve the right to make any necessary changes to the products and the published specification. As part of our ongoing product development program we try, where possible, to maintain the highest degree of product compatibility.
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recommended use |
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SPL max peak test signal: pink noise with crest factor 4 |
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100 Hz mode |
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in applications with low continuous levels or low ambient temperatures up to three loudspeakers per channel D12 may be connected |
Downloads
Documentation
| Title | Language | Date | Size |
|---|---|---|---|
| Ci7-SUB Manual 2.1 | English | 18.09.08 | 110 kB |
| The C-Series brochure | English | 15.06.11 | 2563 kB |
Order form for printed documentation from d&b.
Accessories
Available PDF documents for the accessories can be found in the table below the images.
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| Z5018 TV spigot M12 |
Q9034 M16 safety eyebolt |
Z5091 Ci Flying bracket |

with D6 / D12



