MUSTER REDCATT 121XR - 8 Ohm

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REDCATT 121XR - 8 Ohm Sub-woofer

Key Features

• EXTENDED FREQUENCY RESPONSE, high excursion, ultra low THD
• Static demodulation coil, large spider with stitched tinsel wires
• Carbon fiber loaded paper cone

Design Notes

The 121XR was designed to be simply the best driver for 2-way and multi-way systems on the market, yet this driver will also shine in sub-woofer applications. The combination of our XR patented technology with static shorting coil brings an nonparallel opportunity to the audio designers. The common request for 2-way speakers is “more of everything”. Designers wishes for more bass, more mids. Well, there you have it! But not only that. We bring this with clarity in the mid-frequencies and undistorted bass. Our designers were able to achieve THD below 0.5% from 20Hz up to 2.5kHz. There isn’t another driver like this on the market. Motor Design The magnetic design incorporates large neodymium magnets placed along the voice coil winding, together with the 2nd and static coil placed on the pole piece. This has allowed us to push the cone excursion to 30mm peak to peak, while lowering the inductance. The shorting coil covers the complete main coil excursion. This is also an improvement compared to some previous designs on the market. Unique gap venting ensures good air circulation and greatly improves the reliability of this driver.

Specifications
General Specs

• Diameter: 12 inch
• Rated Impedance: 8 Ohm

Power Handling

• AES Power: 500 Watts
• Program Power: 1000 Watts

Voice Coil

• Diameter: 2,5 inch
• Winding wire : Copper
• Former: Glass Fiber
• Winding height: 18,3 mm

T/S Parameters

• Resonant frequency: 46Hz
• Re: 5.6ohm
• Qes: 0,42
• Qms: 1,56
• Qts: 0,33
• VAS: 69.1L
• Sd: 531cm2
• Mms: 66.8g
• BL: 16
• Le: 0,16
• Sensivity: 95,78 dB

Design Details

• Surround material: Fabric
• Cone material: Paper
• Spider: Nomex
• Plate thickness: 31 mm
• Peak to peak linear cone displacement: 29,85 mm
• Overall diameter: 320 mm
• Bolt circle diameter: 299 mm
• Baffle cutout dia: 281 mm
• Number of mounting holes: 8
• Depth (flange to rear): 172,5 mm
• Net weight: 5.1kg