TF0818
8-inch pressed steel chassis, ferrite magnet mid/bass driver
Specifications
200W
Continuous power rating
94dB
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
94dB
Frequency range
70-6000Hz
Chassis type
Pressed steel
Magnet type
Ferrite
Magnet weight
0.88kg / 31oz
Voice coil diameter
44mm / 1.75in
Voice coil material
Round copper
Former material
Polyimide
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Gap height (Hg)
6mm / 0.24in
VC winding height (Hvc)
13mm / 0.51in
Additional impedances
4Ω, 16Ω
Parameters
Sd
226.98cm2 / 35.18in2
Fs
100.00Hz
Mms
19.57g / 0.69oz
Qms
3.311
Qes
0.493
Qts
0.429
Re
6.72Ω
Vas
9.44l / 0.33ft3
BI
12.95Tm
Cms
0.13mm/N
Rms
3.72kg/s
Le (at 1kHz)
0.75mH
Xmax
5mm / 0.2in
Mounting Information
Overall diameter
208mm / 8.19in
Overall depth
99mm / 3.9in
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
2.3kg / 5.1lb
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
2.8kg / 6.2lb
Multi pack qty
140
Multi pack size W x D x H
42.1in x 33.5in x 33.9in
Multi pack weight
350kg / 770lb
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.
Parameters: Measured after unit subjected to pre-conditioning signal.
Xmax: 0.5*(Hvc-Hg) + 0.25*Hg
