TF0818MR
8-inch pressed steel chassis, ferrite magnet midrange driver
- Closed back midrange unit
Specifications
200W
Continuous power rating
99dB
Sensitivity
1.75in
Voice coil diameter
Nominal diameter
203mm / 8in
Power rating
100W
Continuous power rating
200W
EIA power rating
150W
Rated impedance
8Ω
Sensitivity
99dB
Frequency range
800-5000Hz
Chassis type
Pressed steel
Magnet type
Ferrite
Magnet weight
0.57kg / 20oz
Voice coil diameter
44mm / 1.75in
Voice coil material
Round copper
Former material
Polyimide
Cone material
Kevlar loaded paper
Surround material
Treated paper
Suspension
Single
Gap height (Hg)
n/a
VC winding height (Hvc)
n/a
Parameters
Sd
n/a
Fs
453Hz
Mms
n/a
Qms
n/a
Qes
n/a
Qts
n/a
Re
6.63Ω
Vas
n/a
BI
n/a
Cms
n/a
Rms
n/a
Le (at 1kHz)
0.31mH
Xmax
n/a
Mounting Information
Overall diameter
208mm / 8.19in
Overall depth
85mm / 3.35in
Cut-out diameter
183mm / 7.2in
Mounting hole dimensions
9.5x5.5mm / 0.37x0.22in
Number of mounting holes
4
Mounting hole PCD
195-199mm / 7.68-7.83in
Unit weight
1.9kg / 4.2lb
Packed Dimensions & Weight
Single pack size W x D x H
230mm x 230mm x 110mm / 9.1in x 9.1in x 4.3in
Single pack weight
2.5kg / 5.5lb
Multi pack qty
140
Multi pack size W x D x H
1070mm x 850mm x 860mm / 42.1in x 33.5in x 33.9in
Multi pack weight
300kg / 660lb
Frequency Response and Impedance Curves
Topmost curve: Frequency response on axis | Secondary curve: Frequency response at 45° off axis
Power rating: Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.
Continuous power rating: Defined as 3dB greater than the AES rating.
Sensitivity: Measured on axis at 1W, 1m in 2π anechoic environment.
