Redcatt 121XR-X8
Speaker Spares

Description
Redcatt 121XR-X8 is a woofer for two way and multi way systems, and the listing says it can also work in subwoofer applications. It uses large neodymium magnets along the voice coil, plus a second static shorting coil on the pole piece. The listing claims THD below 0.5 percent from 20 Hz to 2.5 kHz. Get it from VMT with GST billing and delivery across India.
Key features
- Carbon fibre loaded paper cone with stitched tinsel
- Neodymium magnets with static shorting coil
- Cone excursion of 30 mm peak to peak
- Listed THD below 0.5 percent, 20 Hz to 2.5 kHz
Specifications
| Driver type | Woofer |
|---|---|
| Magnet | Neodymium |
Manufacturer description
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 DesignThe 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 Nominal Diameter: 12 in. Rated Impedance: 8 Ohm Power handling AES Power: 500 Watts Program Power: 1,000 Watts Voice Coil Diameter: 2.5 in. Winding wire: Copper Former: Glass-fiber Winding height: 18.3 mm -
T/S Parameters Resonant frequency: 46 Hz Re: 5.6 ohm Qes: 0.42 Qms: 1.56 Qts: 0.33 Vas: 69.1 liters Sd: 531 cm2 Mms: 66.8 grams Bl: 16 Le: 0.16 mH Sensitivity: 95.78 dB -
Design details Surround Material: Fabric Cone material: Paper Spider: Nomex Plate thickness: 31 mm Peak to peak linear cone Displacement 12.7 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: 5.1 kg -
Ordering codes: 4 ohm version: n/a 8 ohm version: 121XRX8-352 16 ohm version: n/a Recone kits: 4 ohm version: n/a 8 ohm version: RC121XRX8-352 16 ohm version: n/a





