| General specs | |
| Nominal Diameter: | 18 in. |
| Rated Impedance: | 4 Ohm |
| Power handling | |
| AES Power: | 1,200 Watts |
| Program Power: | 2,400 Watts |
| Peak Power: | 4,800 Watts |
| Voice Coil | |
| Diameter: | 4 in. |
| Winding wire: | Copper |
| Former: | Glass Fiber |
| Winding height: | 22 mm |
| T/S Parameters | |
| Resonant frequency: | 30 Hz |
| Re: | 3.3 ohm |
| Qes: | 0.24 |
| Qms: | 13.2 |
| Qts: | 0.23 |
| Vas: | 195 liters |
| Sd: | 1256.6 cm2 |
| Sensitivity: | 97 dB |
| Mms: | 306 grams |
| Bl: | 28.3 |
| Le: | 1.3 mH |
| Design details | |
| Surround Material: | Fabric |
| Cone material: | Paper |
| Spider: | Nomex |
| Plate thickness: | 56 mm |
| Peak to peak linear cone Displacement | 44.4 mm |
| Overall diameter: | 467.6 mm |
| Bolt circle diameter: | 442 mm |
| Baffle cutout dia.: | 442 mm |
| Number of mounting holes: | 8 |
| Depth (flange to rear): | 257.2 mm |
| Net weight: | 14.5 kg |
| Ordering codes: | 181XR-X4 ohm-350 |
| Recone kits: RC181XRX-350 |
| In many cases REDCATT |
| produces 4 ohms, 8 ohms and 16 ohms versions. Indicate what impedance do you need in your request. |
| Download: |
| Spec download |
| 2D drawing |
| 3D model |
Back Top
Designed based upon the 18XR, the 181XR was designed for professional
audio segment. The basic characters and design concept remains the same for the 181XR. We have
used newly designed 4 roll waterproof fabric surround that fully supports the high cone excursions of this incredible loud-speaker.
The target was to push the envelope of possibilities. We are giving you a product that will not limit you to achieve even your wildest sub-woofer dreams.
Motor Design
The magnetic design incorporates large
neodymium magnets placed along the voice
coil winding. This has allowed us to push
the cone excursion to 44mm peak to peak.
Unique gap venting ensures good air circu-lation
and greatly improves the reliability of
this driver. We have also developed a new
technique for manufacturing deep copper caps.
The design further utilizes dual, uncom-monly
large, spiders, spaced with spacer,
hot-pressed tinsel wires onto the top spider,
reinforced cone edge, reinforced surround
to cone joint, reinforced spider to basket
joints, etc.
| General specs | |
| Nominal Diameter: | 18 in. |
| Rated Impedance: | 4 Ohm |
| Power handling | |
| AES Power: | 1,200 Watts |
| Program Power: | 2,400 Watts |
| Peak Power: | 4,800 Watts |
| Voice Coil | |
| Diameter: | 4 in. |
| Winding wire: | Copper |
| Former: | Glass Fiber |
| Winding height: | 22 mm |
| T/S Parameters | |
| Resonant frequency: | 30 Hz |
| Re: | 3.3 ohm |
| Qes: | 0.24 |
| Qms: | 13.2 |
| Qts: | 0.23 |
| Vas: | 195 liters |
| Sd: | 1256.6 cm2 |
| Sensitivity: | 97 dB |
| Mms: | 306 grams |
| Bl: | 28.3 |
| Le: | 1.3 mH |
| Design details | |
| Surround Material: | Fabric |
| Cone material: | Paper |
| Spider: | Nomex |
| Plate thickness: | 56 mm |
| Peak to peak linear cone Displacement | 44.4 mm |
| Overall diameter: | 467.6 mm |
| Bolt circle diameter: | 442 mm |
| Baffle cutout dia.: | 442 mm |
| Number of mounting holes: | 8 |
| Depth (flange to rear): | 257.2 mm |
| Net weight: | 14.5 kg |
| Ordering codes: | |
| 8 ohm version: | 181XR-X4 ohm-350 |
| Recone kits: RC181XRX-350 |
| In many cases REDCATT |
| produces 4 ohms, 8 ohms and 16 ohms versions. Indicate what impedance do you need in your request. |
| Download: |
| Spec download |
| 2D drawing |
| 3D model |
Phone: (+86) 769 8318 1898 Email: info@redcatt.net
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