Celestion's TF0818MR 8" professional midrange speaker features and integrated sealed chassis that isolates the driver's diaphragm a companion woofer's "back pressure", which eliminates the need to construct a separate sub-enclosure. The TF0818MR produces high-SPL, low distortion reproduction of the all-important frequency range. It features a 1.75" high-temp voice coil and a 31 oz. ceramic ferrite magnet, which contribute to the driver's very high output and low distortion.
Nominal Diameter: 8"
Power Handling (RMS): 100 Watts
Power Handling (Max): 200 Watts
Impedance: 8 ohms
Frequency Response: 800 to 5,000 Hz
Sensitivity: 99 dB 2.83V/1m
Voice Coil Diameter: 1.75"
Magnet Weight: 20 oz.
Resonant Frequency (Fs): 450 Hz
DC Resistance (Re): 6.7 ohms
Voice Coil Inductance (Le): 0.34 mH
Total Q (Qts): 6.7
Materials of Construction
Cone Material: Paper / Kevlar
Surround Material: Treated Paper
Voice Coil Wire Material: Copper
Voice Coil Former: Kapton® / Polyimide
Basket / Frame Material: Steel
Magnet Material: Ferrite
Overall Outside Diameter: 8.19"
Baffle Cutout Diameter 7.2"
# Mounting Holes: 4